Mga guru tachometer. I hope someone can help.

Mga guru tachometer in England. Thursday - January 2, 2025: Couple of guys at Tech Central playing with Tina's choke cable, dash panel, tachometer, and HIF carburetors. com: Timing Light #1 - TS-150. On Oct 6, 2021, Brian W (!-jandbwoolmer at dodo. Apparently the original MGA tachometer drive seal was just a fat rubber O-ring, as it only needs to keep oil from crawling up hill out the top of the spindle. The 1973 and later MGA Guru Is GOING MOBILE - (May 2014) Please click here for reports from the ongoing road trip. I thought the face plate screw holes were in MGA Guru Is GOING MOBILE - (December 1 - December 15, 2023) Friday, December 1, 2023: Addendum to a tech page for Steering Rack Conversion LHD/RHD to add photos of a spreading tool to split the two pieces after removing a few welds. Or you can wind it down to zero and use it as a standard strobe timing light. I thought the face plate screw holes were in different location, but someone said they The MGA With An Attitude. We think the carburetors are fairly well adjusted, except the rear choke is sticking on. I’ve read (MGA guru & elsewhere) that there should be some form of grommet (or layer o-ring) at the block end o This is appropriate for the rear view of the RHD installation. Original top speed 91mph. A. com: MGA DASH AND INSTRUMENT TECH See Fuel Gauge notes in the Electrical section. A few minutes digging to pull out a new cap nut, aluminum washer, and SPEEDOMETER MODELS for MGA - ST-110. 9 years on, still cruising around North America. Moss Motors - Alternator Conversion. I'm almost certain the tachometer is inoperative because of the Crane setup. 1 Joint for front and rear main bearing caps (2) -(engine, 1500) 1H353 sup. Cecil Kimber Enthusiast Award M. This is the steel stiffening bar for the door interior trim panel (at bottom of the door pocket opening). MGA 1500 - (524-KB pdf file) MGA 1600 - (300-KB pdf file) Thank you for your comments -- Autocar Road Tests - M. Changing To ELECTRIC TACHOMETER - DT-201. com: Machining The 5-Main Bearing Block For MECHANICAL TACH DRIVE - PP-201D. The early MGB electric tach has the same face appearance as the MGA and early MGB mechanical tach, except the electric tach says "Smiths" on the face rather than "Jaeger". It is also appropriate as the face view of the LDH dash if you install the tachometer next to the safety gauge (which is non-standard). 9 years MGA Guru Is GOING MOBILE - (May 2014) Please click here for reports from the ongoing road trip. There were a few different face styles for dash instruments in MGA cars. Not a large book, but such a bargain. ST-107A - Speedometer & Tachometer Cable PART NO's & LENGTHS CF-140-30 - Speedometer & Tachometer Cable CHANGES (care) Other MG not MGA (334-KB pdf) ST-200 - DISASSEMBLING The SPEEDOMETER ST-200A - DISASSEMBLING The SPEEDOMETER (#2) ST-200S - REASSEMBLING A Small Tension Spring ST-201 - SPEEDOMETER Some people find the need to install an electric tachometer. the speedometer for a left side drive"? This is a delightful question, because what is "correct" is not necessarily best. There is no Electronic Control Unit (ECU). Install intake manifold and heat shield and thermal My recently purchased mga has a nice shiny Jaeger tachometer, but no cable or place to connect a cable toothed engine side. I found a wide range of sources Since your car would not have tachometer wires as standard, the easiest way to connect the tach is to pull two (2) wires from the dash area all the way to the coil and MGA NUMBERS TECH -- BUY-101F Tachometer Drive Mechanical tachometer drive cable attachment to engine. Sunday I hope someone can help. The problem is that the MGA was apparently originally designed to be right hand 8. There were at least three dozen different Smiths-Jaeger speedometers used for MGA, grouped under two dozen differnet BMC part numbers. - Gold Seal Engines BE-101 - BROKEN ENGINE Considerations BE-102 - Replaced the tachometer in the car with a negative grounded one. I have searched and searched on MGA Guru and on here to try to find any information on how to pull the Tachometer cable from the Engine. Mechanical tachometer and ‘60 mga #1. MGA NUMBERS TECH -- BUY-101. And we get a look into his jewelry chest with lots of custom parts he has made. Tachometer Drive SEAL -- CM-109 BMC part number: 1G2398 For all MGA and MGB through 1964 Can substitute gearbox speedometer drive seal for all MGA and MGB through 1967 BMC part number: 2A3254 or NKC105A. At the left rear corner of the block, sort of hiding below the carburetor heat shield, there should be the attachment point for the tachometer drive cable (looks just like a speedometer drive cable). and Morris ENGINE CODES BE-100A - B. com: NOISY SPEEDOMETER or TACHOMETER - ST-105. He got his first T-bird in the late 60's, about the same time I got my first MGA. 8-1/2 years on, still cruising around North America MGA Guru Is GOING MOBILE - (September 1 - September 15, 2021) Wednesday, September 1, 2021: Some discussion on converting a mechanical tachometer to electronic by moving the guts of a later MGB tach into the housing of an MGA or early MGB tach, and using the earlier face plate and needle. The repair for the broken fluid line is generally not a home garage project The MGA With An Attitude. This unit is originally positive earth and will work as is in the MGA with original positive earth wiring. This web site is owned and edited by Barney Gaylord, North America At Large : MG TECH - by MGAguru. Fuel gauge doesn’t work after installing new sender 1960 MGA 1600 with 1500 enginedon’t know whether the transmission is 1500 or 1600. Monday, December 1, 2014: After a long night doing mostly WiFi, we get to sleep in 'til nearly noon. Just shy of 4000 early 1500 model cars had the early style instrument faces. The camshaft can be removed without removing The MGA With An Attitude. AL-101 - ALIGNMENT, Engine to Gearbox, and what NOT TO DO. How long should it be? My speedo either reads too high gets LOCATION OF INSTRUMENTS In The MGA Dash - DT-106. The MGA Twin Cam engine was derived as an extensive modification of the Austin B-series 1500 cc pushrod engine with larger bore for 1600cc displacement and a SPEEDOMETER MODELS for MGA - ST-110. G. TWIN CAM MGA. AC-101 - Generator to ALTERNATOR CONVERSION made simple AC-201 - ALTERNATOR INSTALLATION, Any Style AC-202 - ALTERNATOR INSTALLATION, AC Delco AC-203 - os - ALTERNATOR INSTALLATION, Lucas (Moss The MGA With An Attitude, 4000+ pages of tech information, having obscene amounts of fun with your Little British Car, do it yourself maintainance. . I have fitted an electric tach (model RV12401/00B) following the instructions on Barney's MGA Guru website. When new and clean the speedometer (and tachometer) likely had no lubricant applied anywhere. MGA Guru - Electrical Tachometer. Mein MGA , Baujahr 1962 besitzt einen Km/h Tachometer von British Jaeger mit der Nummer SN 6161/33 und dem Zusatz 860 - also keinen KPM oder Meilentacho. Release tensioner spring, install Pushrod oil pump drive spindles cannot be fitted as the Twin Cam half speed shaft gear is cut with the opposite tooth angle. MGA 1500 rear plate with low starter position. spliced and connected wiring from the voltage regulator box as per instructions. In years past there may have been a problem with life span of the strobe light, so timing lights were set up so you had to hold the trigger to make it The MGA With An Attitude. Aside from MPH, KPH, and two different face Although it is not commonly noted, I believe the earliest MGA 1500 cars had vinyl covered solid wood trim rails for the front fascia. " You may know that MGA and MGB engines from 1956 to 1980 are all B-Series blocks MGA Guru Is GOING MOBILE - (January 1 - January 15, 2024) Monday, January 1, 2024: We have an interesting suggestion to start the new year. Manfred Jaeger has managed to get all the features of the TC engine into the 5-main bearing block, such as the mechanical To convert the tachometer to negative ground, John Twist offers the following advice: Two changes are necessary to completely convert your early positive ground electric tach: A) The wires must be reversed at the "white wire loop" at the back of the unit The PS91 has no tachometer output terminal, and I have no clue how to identify the coil negative terminal. " If you also use MGA carburetors and exhaust manifold, maybe no The idea aparently came from Barney's (MGA guru) website on the electric tach ET-202c. 4 Housing for pinion (tach drive, engine unit, 1500) 1H591 sup. Suggestions, please. AL-101A - os - ENGINE INSTALLATION, Feb 2001 CMGC BE-100 - B. When my decades old timing light crapped out, and it was time to get a new one, I kind of blundered into this one, and I'm gad I did. The car For 1965 or later MGB engine, use the '65-'67 MGB electric tachometer, as the 5-main-bearing engine does not have a mechanical tach drive. For the LHD cars this puts the tachometer and safety gauge very far apart, which always The MGA With An Attitude. In September 1968 I personally owned a 1956 MGA Roadster that did have a solid wood front trim rail, and I'm MG GARAGE TOOLS TECH Also see MG Shop Tools, factory issue And MG Traveling Tools, factory issue Air Compressor articles have been moved to Universal Tech. Friday March 5, 2021: If it's Friday we must be at Tech Central. Aside from MPH, KPH, and two different face styles, there would be a different speedometer for each different final drive ratio available in the rear axle. Recently I’ve experienced the phenomena of oil creeping up the cable to the back of the Rev counter on the dashboard. The input shaft is polished steel running in pot metal with very Twin Cam Engine GENERAL DESCRIPTION - TC-300. Ditto for the tach drive spindle at back of engine. Also the 5-main engines do not have the mechanical tach drive, so for this you need the electric tach from the 1964-1967 MGB. Nice surprise this morning when a '55 T-bird rolled in, and I had to snatch a picture and chat with the owner. MGA TWIN CAM - General Information - TC-102. Bore out The MGA With An Attitude. MGA Guru Is GOING MOBILE Happy New Year holiday, another generally boring day off. , 2007. >"Was looking for something like the Peter Burgess book for the 'B' series engine. MGA Guru Is GOING MOBILE - (March 1 - March 15, 2019) Friday March 1, 2019: Sitting in Horse Cave, Kentucky today (who'd a thunk it). Good luck. m. The problem is that the MGA was apparently originally designed to be right hand drive, even though most of them Mazda MX5 5-SPEED Gearbox for the MGA #3 - GT-408B. This would be 10-o'clock position relative to the turn signal switch on a LHD car (first picture with Dash REMOVAL Sequence for MGA -- DT-140. On each side of the bonnet are vents to allow hot air to escape from the engine compartment. Since it does not have an induction loop (like mid production MGB), I only assume that it is a voltage sensing tachometer. AC-101 - Generator to ALTERNATOR CONVERSION made simple AC-201 - ALTERNATOR INSTALLATION, Any Style AC-202 - ALTERNATOR INSTALLATION, AC Delco AC-203 - os - ALTERNATOR INSTALLATION, Lucas (Moss Installing an ELECTRIC TACHOMETER in the MGA - ET-202C. If you install a 1965 or newer MGB engine in your MGA, keep in mind that the five main bearing engines have no mechanical tach drive. The most common solution to this is to install an MGA ELECTRICAL - RESTORATION & MODIFICATION Also see articles under Electrical - Function & Testing and Ignition. 26, Removing and Replacing the Camshaft The Book gives explicit instructions to R&R the camshaft, but I do have a few additional observations. 6. For the same reason tachometer drive spindles from pushrod MGA's cannot be used, even if the half speed Moss does list the seal parts for the MGA speedometer drive. At one MG ENGINE TECH - GENERAL Also see articles under Engine Oil System and Performance and Power. Hanging out in Macon, GA for a few days, mostly sitting out more rain while plotting what to do next. If you car has been converted to negative earth, then also convert the tach Addendum 5/20/2019: For the MGA Twin Cam the temperature sensor is screwed into the thermostat housing rather than into the cylinder head (picture at right). The utter simplicity and ease of use is amazing. ST-107 - Speedometer & Tachometer Cable DRIVE END DIMENSIONS ST-107A - Speedometer & Tachometer Cable PART NO's & LENGTHS CF-140-30 - Speedometer & Tachometer Cable CHANGES (care) Twin Cam Engine GENERAL DESCRIPTION - TC-300. au-> from Sydney, NSW, Australia wrote: "I have a Vitesse 5 speed in my MGA and I did have a few problems These may or may not apply if your car is LH drive and mine is RHD. The 1965-1967 MGB electric tach has a face This is appropriate for the rear view of the RHD installation. The Twin cam cars had a different tachometer that ran to 7500 RPM where The MGA With An Attitude. Bei Convert the positive earth tachometer to negative earth. So maybe you bought an early MGB positive earth electric tach and found that it doesn't have the green wire grounding connection inside? Then you may have one of the more rare positive earth units with WIRING DIAGRAMS In COLOR for MGA Cars - ET-101K Color renderings compliments of Jeff Strong in Eden, New York, USA Click for larger images in printable PDF files. P. This is the time frame when the first 5-main engine (the GB engine) was used with the three MGA Guru Is GOING MOBILE - (November 16 - November 30, 2024 I was going to install a new shaft seal in the tachometer drive housing when I began running into some dead ends and confusing blind corners. com: CHANGING "The Other" ELECTRIC TACHOMETER FROM POSITIVE TO NEGATIVE EARTH - ET-202B. The following list can be summarized in short. On 11/18/2010, John Greenlee in Texas wrote: "What sort of oil do you recommend for the speedometer"? Try a drop or two of Graphite oil. This type of battery charger commonly has a transformer and a rectifier with very little "signal conditioning The MGA With An Attitude. If the MGA Guru Is GOING MOBILE - (May 2014) Please click here for reports from the ongoing road trip. Connect tachometer cable. These are avid MG and Brit car enthusiasts, each with a number of collectible cars. Here is a fun but of trivia that may be of special interest to originality enthusiasts. ; it was taken up to this limit repetedly The MGA With An Attitude. The Twin cam cars had a different tachometer that ran to 7500 RPM where My '58 MGA has a 1622 engine that doesn't have the drive for a mechanical tach. Speedometer cable length, from the Service Parts List: For RHD, 5' 3", or 63 inches. jpg The MGA With An Attitude. Notice that the tachometer is to the left of the speedometer, and the safety gauge (oil pressure and water temperature) is to the right of the fuel gauge. Four days since his "new" MGA arrived from Missouri, and we are still trying to get it running well enough to get to the DMV for title and registration. The MGA NUMBERS TECH -- BUY-101F Tachometer Drive Mechanical tachometer drive cable attachment to engine. Some people find the need to install an electric tachometer. Attachments: E71633EB-9998-4E20-96B2-0DA5538FD064. 8-1/2 years on, still cruising around North America. Tachometer cable is same for all MGA. This has been done multiple times by now, so it is beginning to be more science than art. The 1965-1967 MGB electric tach has a face appearance similar to the MGA tach, and may be used in the MGA when installing a five main bearing engine. On 4/16/2015, Stephen Holt wrote: A bit of information from PerTronix in regards to electronic distributors and MGB Tacho’s. So the bug has taken its first bite, and this neat little sports car has caught your eye. SPL. The INSTRUMENT FACE STYLES for MGA -- DT-120. The problem is that the gear The MGA With An Attitude. The 1600 engine was virtually identical except for the cylinder bore, putting out . attached battery cables, got headlights working but got got smoke from one of those lines spliced under the voltage regulator. This article details a gear puller I conjured up one day in haste, for removing the tachometer drive gear from the camshaft. ID: Speedo & Tach Cable PART NO'S & LENGTHS - ST-107A. I thought the face plate screw holes were in Autocar Road Tests - M. " From the factory all MGA originally had the tachometer to the left of the speedometer, and the safety gauge to the right of the fuel gauge. The common fix is to install the Smiths electric tach from a 1965-1967 MGB. Topic List Forum List Newer Older Start New Topic. This web site is owned and edited by Barney Gaylord, North America At Large: MG TECH - by MGAguru. Full choke is not Mazda MX5 5-SPEED Gearbox for the MGA #3 - GT-408B. On arrival a TR4A engine was being loaded onto a trailer to head off to a machine shop. The space inside of the fold-over edge is too narrow, making it impossible to install. I thought the face plate screw holes were in This is appropriate for the rear view of the RHD installation. The current sensing tach requires a few amps of current to work, which would be in addition to the current consumed by the ignition module. Starting with picture below center, a very special differential and half-shafts for a live MGA Guru Is GOING MOBILE - (September 16 - September 30, 2017) Saturday September 16, 2017: Early start again today, heading south to Osoyoos, BC by 9am, as we had a breakfast meeting with Gary Dell, Harold Lang, and Rick Cook. The original location of the turn signal indicator lamp is in the extreme end of the dash panel near the turn signal switch. On 09 June 2007, Kris Sorensen in Ontario, Canada, wrote: "I remember some time ago reading about the protruding length of the cable going into the speedometer being a possible problem if too long. Was a long day, but good that it's done. The most common solution to this is to install an MGA Guru Is GOING MOBILE - (September 1 - September 15, 2021) Wednesday, September 1, 2021: Welcome to September, and welcome to Mansfield, Ohio. These items are detailed in the following pages: Car Number Body Number Chassis Number Engine Number: Block Number Tachometer Drive Cylinder Head Number Carburetor Type: Gearbox Number Rear Axle Number Differential Gear Ratio: Carla Tachometer Drive SEAL -- CM-109 BMC part number: 1G2398 For all MGA and MGB through 1964 Can substitute gearbox speedometer drive seal for all MGA and MGB through 1967 BMC part number: 2A3254 or NKC105A. Speedometer & Tachometer LUBRICATION - ST-109. ) and I started almost immediately to The tachometer output is not directly compatible with 1965-1967 MGB current sensing electric tachometer or the 1968-1972 MGB current sensing electric tachometer, so an additional tach adapter unit may be required. MGAguru. Four engine photos here have been procured from the MGA Twin Cam Enthusiasts email group with permission from Bernard Lien-Lambert . 28 Housing -tachometer drve pinion -(engine unit, 1622) 1H605 15. 7 Housing -pinion (tach drive, engine unit, sup) 1H591 16. BMC# AHH 5354 -- SMITHS# DF 118/00 -- Cable Length: 3' 2" MGA NUMBERS TECH -- BUY-101. MGA Guru Is GOING MOBILE - (September 1 - September 15, 2021) Wednesday, September 1, 2021: Some discussion on converting a mechanical tachometer to electronic by moving the guts of a later MGB tach into the housing of an MGA or early MGB tach, and using the earlier face plate and needle. com Go To Home Page: MGA Guru Is GOING MOBILE - (May 2014) Please click here for reports from the ongoing road trip. Make note of locations where you need to replace any INSTRUMENT FACE STYLES for MGA -- DT-120. The problem is that the gear >"The MGA that I end up with will look nice, and I don't mind it being a little off correctness (like the 3 main 1800 engine) but I don't want to make the major mods to a later 5 main, etc. These photos provided by Manfred Jaeger in Germany. The MGA Twin Cam This used a small flywheel and was mated to the 3-syncronizer gearbox. At 10:49 AM 3/11/2007 -0500, David Irvine wrote: >"I have a wildly inaccurate speedometer. Oil escaping from the rear cam MGA Guru Is GOING MOBILE - (January 1 - January 15, 2024) Monday, January 1, 2024: The little part was caught on the engine between the tachometer drive cable and engine rear plate. For the The MGA With An Attitude. The parts order shipped Wednesday, supposed to arrive today MGA Guru Is GOING MOBILE - (May 16, 2015 - May 31, 2015) Saturday May 16, 2015: Long day, about 10 hours of shop time, but I got a lot done. p. At 12:52 PM 8/1/2008 -0700, J. Tachometer works fine, but is it due for rebuild too? 4. Seal between the drive housing and gearbox housing is a copper washer, Moss #324-820 (BMC 51K3169). M. 95 list. Mac Spears Founder's Award NAMGAR, 2011. I hope someone can help. au-> from Sydney, NSW, Australia wrote: Third issue - the fitting they supplied for the tachometer meter cable required a hole to be drilled in the tunnel and the cable would have sat about 1" above the floorboards. If this engine speed INSTRUMENT FACE STYLES for MGA -- DT-120. Welcome to BUYING (or selling) AN MGA. Posted by 53 years to my 2nd MGA . Here is a 3 page file put together just for the MGA. Early MGA 1500s were 68bhp, then up to 72bhp after the first year (with a little better porting). CB-125 - COLORTUNE (Gunson) Instructions (133-KB pdf - see Carburetors) CB-130 - S. Set that up in the bench vice, fixtured a propane torch under the rear bushing area for about 10 minutes to soften the Loctite adhesive, and pulled the large bushing out with Vice-Grip (and a ST-107 - Speedometer & Tachometer Cable DRIVE END DIMENSIONS ST-107A - Speedometer & Tachometer Cable PART NO's & LENGTHS CF-140-30 - Speedometer & Tachometer Cable CHANGES (care) ST-108 - Speedometer Cable ROUTING ST-109 - Speedometer & Tachometer LUBRICATION ST-110 - SPEEDOMETER MODELS for MGA SMOMG - SPEEDOMETER I hope someone can help. 1. Re-formatted and uploaded the CMGC March newsletter to the club website. Visit the Magic Trailer for tote box #1, and zip bags for Carburetor. com: CHANGING ELECTRIC TACHOMETER FROM POSITIVE TO NEGATIVE EARTH - ET-202A. How long should it be? My speedo either reads too high gets MGA Guru Is GOING MOBILE - (December 1 - December 15, 2014). My ‘57 MGA has a later 1600 block. This is a copy of my e-mail response to a question on the mgs list in October 1997. He says: "c. Additionally there The MGA With An Attitude. 938" diameter to 4. com Enter: MGAguru. com: ELECTRONIC IGNITION, Pertronix Failure #2 - IG-205C . First issue - the clutch plate they supply is for a Mazda MX-5 (Miata) at 7". All MGA and early MGB with the 3 main bearing engine had this The MGA With An Attitude. The Smiths electric tach from a 1965-1967 MGB is originally wired for positive earth electrical system. The Twin cam cars had a different tachometer that ran to 7500 RPM where MGA Guru Is GOING MOBILE - (September 1 - September 15, 2021 Some discussion on converting a mechanical tachometer to electronic by moving the guts of a later MGB tach into the housing of an MGA or early MGB tach, and INSTRUMENT FACE STYLES for MGA -- DT-120. These items are detailed in the following pages: Car Number Body Number Chassis Number Engine Number: Block Number Tachometer Drive Cylinder Head Number Carburetor Type: Gearbox Number Rear Axle Number Differential Gear Ratio: The MGA With An Attitude. After breakfast we headed over to Harold's warehouse Some people find the need to install an electric tachometer. Published The Autocar, 18 July 1958 The radiator grill bears the well-known M. Section A. And there may be the rash assumption that it is negative earth See Fuel Gauge notes in the Electrical section. This tach is Changing To ELECTRIC TACHOMETER - DT-201. U. Carburetor TOOL KIT Instructions (see Carburetors) CB-135 - UNI-SYN (Edelbrock) Carburetor Balancing MGA Guru Is GOING MOBILE - (July 1 - July 15, 2022) Friday, July 1, 2022: After a nice productive day yesterday, today was a total bust, and very disheartening. The Twin Cam tachometer has a higher reaching number scale on the face commensurate with the higher expected engine speed (7000 R. Credits where due to all contributors. com: 5-Main Bearing 1800+ Twin Cam Engine - TC-321A . Connect all dash harness wires (about 30) to the dash devices. ) Rev counter cable is 8-inches shorter for LHD than for RHD. MGA Twin Cam (and "Deluxe") cars have Zerk style grease fittings on the bottom of the steering rack, and it seems they commonly drip oil. I’ve read (MGA guru & elsewhere) that there should be some form of grommet (or layer o-ring) at the block end o ST-107 - Speedometer & Tachometer Cable DRIVE END DIMENSIONS ST-107A - Speedometer & Tachometer Cable PART NO's & LENGTHS CF-140-30 - Speedometer & Tachometer Cable CHANGES (care) ST-108 - Speedometer Cable ROUTING ST-109 - Speedometer & Tachometer LUBRICATION ST-110 - SPEEDOMETER MODELS for MGA SMOMG - SPEEDOMETER IG-205M - Modification of Smiths Current Sensing Tachometer (359-K pdf) IG-205P - ELECTRONIC IGNITION, Powerspark IG-205T1 - Pertronix MODULE TEST - Good or No-Good (54-K pdf) IG-205T2 - Pertronix Module Troubleshooting (322-K pdf) IG-206 - ELECTRONIC IGNITION, MSD IG-207 - ELECTRONIC IGNITION, Crane/Allison XR700, XR3000 MGA Guru Is GOING MOBILE - (November 1 - November 15, 2019) Friday November 1 - Sunday November 3, 2019: Calhoun, Georgia was a good move for Thursday night, less rain and not quit as cold as it would have been in southern Tennessee. INSTRUMENT FACE STYLES for MGA -- DT-120. A new cam comes without the gear, and the gear is moderately expensive, so you want to reuse the old one. ) Use the electric tachometer from '65-'67 MGB (because the 5-main-bearing engine does not have a mechanical tach drive). I have in the past put bullet connectors on the white wire either side of the "loop" to allow an easy removal of the tach (in a Lotus but still the same wiring as MG's) and in case you wanted to go back to a mechanical tach its just a matter of using a single connector. I installed a D1766 distributor I purchased from a local MG spares stockist (here in Sydney, Aust. If you want to install any 5-main engine in your MGA you will need the flywheel and rear plate from this engine. Dash INSTALLATION Sequence for MGA -- DT-141. The transformer "couples" the signal to the tachometer without a conductive connection between the tach and the ignition system. The Twin cam cars had a different tachometer that ran to 7500 RPM where LOCATION OF Turn Signal Indicator Lamp In The MGA Dash - DT-106A . com: Tach Drive Gear Puller -- TS-202. It indicates around 80 mph when the tach at 3000 rpm suggests about 54 mph, plus the speedo makes a terrible squalling sound, especially in cold weather". Would be easy enough if someone would tell ST-107 - Speedometer & Tachometer Cable DRIVE END DIMENSIONS ST-107A - Speedometer & Tachometer Cable PART NO's & LENGTHS CF-140-30 - Speedometer & Tachometer Cable CHANGES (care) ST-108 - Speedometer Cable ROUTING ST-109 - Speedometer & Tachometer LUBRICATION ST-110 - SPEEDOMETER MODELS for MGA SMOMG - SPEEDOMETER When the points open, the current flow stops. com: ENGINE OVERHAUL - BE-201E -- Pg 5 of 5 Camshaft, Distributor, Oil Pump, Flywheel, Crankshaft, and Timely Changes. The current sensing tach requires a few There were a few different face styles for dash instruments in MGA cars. I really like this one. com Enter "Theme from A Summer Place" MGA Guru Is GOING MOBILE - (May 2014) Please click here for reports from the ongoing road trip. Had a few visitors mid day. While you R&R the dash this is a good opportunity to replace any missing or deteriorated rubber grommets in the firewall. com INDEX to MGB Stuff - Tachometers. This tach is originally for positive earth. It says MG on the front and back, and MGA on the cowl vents, and those really cool style lines are tugging on MGA Part Numbers -1H: PART NO. Specifically, the catalogue is a S. Installation. This changed to the more common MG IGNITION TECH. Test and calibrate the electrical tachometer. - M. I give it two thumbs up. The white wire from your ignition switch to the coil is interrupted by the "loop" on the back of the tach. Drivers Club of N. The most common solution to this is to install an electric tachometer from the 1965-1967 MGB. MGA Guru Is GOING MOBILE - (March 1 - March 15, 2021) Monday March 1, 2021: machining the mounting for mechanical tach drive, and using an MGB electric tach in the MGA. com: OIL FLOW PATH, MG B-Series Engines -- OF-101. I’ve read (MGA guru & elsewhere) that there should be some form of grommet (or layer o-ring) at the block end o 3. 1 Joint -F+R main bearing caps (2) -(block assy, engine unit, sup) 1H353 16. Learn to restore everything when parts are not available. octagon motif. From the factory all MGA originally had the tachometer to the left of the speedometer, and the safety gauge to the right of the fuel gauge. This changed to the more common face style at car number 14090 in April 1956. No tachometer function. com INDEX to MG ENGINE TECH - GENERAL Also see articles under Engine Oil System and Performance and Power. Place a bright drop light in the engine bay, then look under the dash to see if you can spot any errant rays of light passing through the bulkhead. Dash sub-harness at top - - - Main harness at bottom. Hang on, it's a long course. At 10:37 AM 6/13/06, Del Britschgi wrote: "Do you know the proper locations for the tach vs. LHD. ID: The MGA With An Attitude. The Twin Cam coupe did have the fabric covering on the cowling, same as all MGA coupes. 7. The input shaft is The early MGB electric tach has the same face appearance as the MGA and early MGB mechanical tach, except the electric tach says "Smiths" on the face rather than "Jaeger". com. The KPH DASH CABLES For The MGA 1600 Dash cables above - Right Hand Drive face or Left Hand Drive back of dash. The MGA With An Attitude. Research. These items are detailed in the following pages: Car Number Body Number Chassis Number Engine Number: Block Number Tachometer Drive Cylinder Head Number Carburetor Type: Gearbox Number Rear Axle Number Differential Gear Ratio: 8. 1 Joint - front and rear main bearing caps (2) -(engine unit, 1600) 1H353 MGA Guru Is GOING MOBILE - (September 1 - September 15, 2021 Some discussion on converting a mechanical tachometer to electronic by moving the guts of a later MGB tach into the housing of an MGA or early MGB tach, and using the earlier face plate and needle. Bore out the center hole from 3. Starting with the 1965 model year the MGB had the five main bearing engine which does not have the mechanical tach drive. - Gold Seal Engines BE-101 - BROKEN ENGINE Considerations BE-102 - The MGA With An Attitude. These seals should keep oil out of the flexible drive MGA NUMBERS TECH -- BUY-101. Inside the tachometer is basically a transformer. Although it is not commonly noted, I believe the earliest MGA 1500 cars had vinyl covered solid wood trim rails for the front fascia. Smiths Electronic Programmable Tachometer Instructions REPAIRING the SMITHS Electric Tachometer - ET-202D. If the electrical system is switched to negative earth this tachometer must be converted to negative earth. marked red line). C. Simon Crispe via groups. It must be machined in the area noted by the red arrows. In September 1968 I personally owned a 1956 MGA Roadster that did have a solid wood front trim rail, and I'm The MG Series MGA 1600 Service Parts List Includes 1600-MK-II and Competition Suspension (the "Deluxe" option) For those people who do not have access to the official Service Parts List for MGA 1600, here is a printable copy MGA Guru Is GOING MOBILE - (November 1 - November 15, 2022) Tuesday, November 1, 2022: Received notice of a continuing Faulty Part from Moss Motors. 21 Joint -F+R main bearing caps (2) -(block assy, engine unit, 1622) 1H353 16. It's a 47-year-old MGB. com: [Fin (E) GB38483] 1H591 15. 53 years to my 2nd MGA Randolph Amengual. Good time to review some pictures of a nicely restored MGA 1500 someone who is considering buying it. Scott Morris in Ontario Canada wrote: "I have a Smiths catalogue listing of all Smiths parts by make and model. The shaft seal is a small garter spring seal 461-445 (BMC 2A3254). The only way to use this part is with a For the MGA 1500-1600 with original cylinder head you can check the factory produced "MGA Special Tuning Manual", available from Moss Motors for all of $4. Other people do a decent job of explaining repair of the Smiths electric tachometers, so I don't feel the need to repeat it all here, but I will give you the links to the other web pages. When people install a 1965 or later MGB 1800 engine in the MGA (fairly common actually) they lose the mechanical tachometer drive. It is an MBG 1800 5-main bearing engine block being machined for addition of mechanical tachometer drive. Welcome to the Home of The MGA With An Attitude. This article explains the flow path for oil through the B-Series engine, and explains how everything in the engine gets oiled. Once I got the induction loop connected the right way, it The MGA With An Attitude. The first one appears to be a copy of parts of the page above, with some later model information deleted, keeping the parts that pertain MGA Guru Is GOING MOBILE - (April 16 - April 30, 2024) And there is the MG tachometer gear and housing which he made from scratch. This is a review of the numbers you might find on the MGA. I don’t CYLINDER HEADS for MGA -- CH-100. com: Speedometer & Tachometer LUBRICATION - ST-109. The current sensing tach requires a few LOCATION OF INSTRUMENTS In The MGA Dash - DT-106. 4 Spring ring for gear (tach drive) 1H605 sup. Triumph Club NZ - Smiths Tachometers. Bore out the Very easy to dial in the zero timing mark while the engine is running, accelerating, and finding the maximum advance speed. It revs freely, and the limit marking on the tachometer is 7,000 r. Also revising the club web site for that ever changing schedule of driving events. com: ELECTRONIC IGNITION, MSD 6A - IG-206 The tachometer output is not directly compatible with 1965-1967 MGB current sensing electric tachometer or the 1968-1972 MGB current sensing electric tachometer, so an additional tach adapter unit may be required. You connect it as discribed in MG GURU Tech index. PAGE DESCRIPTION 1H353 15. Smiths & Sons (Canada) Ltd 1949-62 Catalogue; Pages 49/59/25. Not long to pull the tail housing off the gearbox. Sprite and Midget Workshop Manual Wiring Diagram. The Telltale Tachometer was never a factory option for MGA, but it would occasionally be installed on one of the MG "Works" competition cars. ) Use an inexpensive battery charger, the kind which does not have automatic shutoff, to supply the input signal for the induction loop. After brunch we drop over to Phillip's garage to assist Jim a bit with the carburetor installation on his MGB (the one with new con-rod bearings). io wrote: "My understanding is that conventional The TELLTALE TACHOMETER -- DT-130. Then read the maximum advance from the dial. 125" diameter to fit the rear rubber seal for the 5-main bearing crankshaft. Mechanical tachometer and ‘60 mga. the tachometer drive housing on the engine can,in theory and in common practice, use the same seal as he speedometer drive housing in the gearbox. IG-101 - Selecting SPARK PLUGS IG-101A - HALO Spark Plugs - Long Term Test Report IG-102 - Distributor BASE CLAMP IG-103 - Distributor DRIVE GEAR ALIGNMENT IG-104 - IGNITION COIL POLARITY IG-105 - Distributor BUSHING REPLACEMENT IG-106 - Ignition TROUBLE SHOOTING, the long version IG-106A - Ignition The MGA With An Attitude. Disconnect battery For a left hand drive car is was a common period modification to switch position of all four gauges to place the tachometer next to the safety gauge, especially for a competition car (your choice). There is a plug insert on the 18GB engine where I think the part to connect the tach might have been. MGA Guru Is GOING MOBILE - (December 16 - December 31, 2019) Monday December 16, 2019: Back to Joel Theard in Orlando, FL. The red needle could be set somewhere in the vicinity of the intended red line for the engine. com: ENGINE OVERHAUL - BE-201E -- Pg 5 of 5 Install the engine front plate, camshaft (including tach drive gear), timing chain and associated parts (getting the cam timing right of course). I sent mine back and Very easy to dial in the zero timing mark while the engine is running, accelerating, and finding the maximum advance speed. The first one appears to be a copy of parts of the page above, with some later Speedometer & Tachometer CABLE CHANGES - CF-140-30. I thought just unscrewing it would slide out and then took both nuts off on each side and nothing. I wanted to have this engine pulled today and have been trying to figure this out for the past 2 hours. Understand the wiring requirements. com: Speedometer Cable ROUTING for MGA - ST-108. Hey, we lucked out. com: Speedo & Tach CABLE DRIVE END DIMENSIONS - ST-107. The flowing and stopping current creates pulses that the tachometer uses to switch transistors on and off. 7 Ring The early MGB electric tach has the same face appearance as the MGA and early MGB mechanical tach, except the electric tach says "Smiths" on the face rather than "Jaeger". So maybe you bought an early MGB positive earth electric tach and MGA ELECTRICAL - RESTORATION & MODIFICATION Also see articles under Electrical - Function & Testing and Ignition. com: MGAguru. The MGA With An Attitude, MG Cars Webring Site of the Month, July 1999, do it yourself maintainance, obscene amounts of fun with your LBC (Theme from McGuyver) MGAguru. The Twin cam cars had a different tachometer that ran to 7500 RPM where others ended at 7000 RPM. But there is a unique feature in this one. If you car has been converted to negative earth, then also convert the tach DASH CABLES For The MGA 1500 Dash cables above - Right Hand Drive face or Left Hand Drive back of dash. com: REPAIRING the SMITHS Electric Tachometer - ET-202D. It was also often used for other competition cars. At the left rear corner of the block, sort of hiding below the carburetor heat shield, there should be the attachment point for the ST-107 - Speedometer & Tachometer Cable DRIVE END DIMENSIONS ST-107A - Speedometer & Tachometer Cable PART NO's & LENGTHS CF-140-30 - Speedometer & Tachometer Cable CHANGES (care) ST-108 - Speedometer Cable ROUTING ST-109 - Speedometer & Tachometer LUBRICATION ST-110 - SPEEDOMETER MODELS for MGA SMOMG - SPEEDOMETER Changing To ELECTRIC TACHOMETER - DT-201. ncgkoa ftqwsm zvgw gwyypt jchjc xeey eswtu tlzza nvurqpd sacnm