MG-Cars.net

Welcome to our resource for MG Car Information.

Recommendations

Parts

MG parts spares and accessories are available for MG T Series (TA, MG TB, MG TC, MG TD, MG TF), Magnette, MGA, Twin cam, MGB, MGBGT, MGC, MGC GT, MG Midget, Sprite and other MG models from British car spares company LBCarCo.

MG MGA - 1622 Engines

I have just acquired a 1622 engine, which is not for an A. It has the boss for the rev counter drive, but it is not bored.
The part number on the block is 12H3247, but what is interesting is it uses a B water pump, and has cup type core plugs. It also has bosses for both a dynamo and an alternator. The engine number is RKM 1204E 2472.

Is this maybe from a Sherpa?

If so, does anyone know if these are superior / inferior to the normal A engine

Thanks

Colin
Colin Parkinson

Colin

Sounds like an 1800 not a 1622.

Someone on Ebay had a similar engine and asked a few questions. This was the anser: "..engine number is RKM 1201E 9164 LOOKS LIKE UNIPART SILVER SEAL AND I THINK CAME OUT OF A 1971 MARINA BUT NOT SURE"

Steve
Steve Gyles

Steve, bit of a clue on the block - 1622!! But I agree sounds like a B 1800.

It also has a strange shaped sump with a large round hole on one side with 2 smaller bolt holes. Obviously for some sort of sensor, but no idea what!!

Colin
Colin Parkinson

The 1622 was used in many other BMC cars of the 1960s eg Morris Oxford/MG Magnette - Farina type - block usually the same as the MGA but different head - cup type core plugs suggest a refurbishment at some time -cheers Cam
Cam Cunningham

The 1622 engine was also used in farm tractors
M. E. WADDS

hi colin it sounds just what i am after ,i have an old mga coupe that needs a 166cc engine.
all the best paul
www.60sclassics.co.uk
p chamberlain

Colin

This sounds a bit like yours ( extracted from Neil Cairns research. http://www.mgcars.org.uk/engine/mgenginehistory.rtf ):

M.G. Magnette Mk4 Engine, (1961-68)

In October 1962 the Mk4 Magnette gained the MGA 1600 Mk2 engine, but detuned to 72bhp in the interests of longer life and mid-range torque. Camshaft, valve sizes and carburetters remained as the Mk3. With bore and stroke of 76.2mm and 89mm, and a 8.3:1 compression, the engine produced 72bhp at 5200rpm with 89 lb/ft torque. The fan had four blades fitted from November 1964, two previously. In November 1966 the 1622cc engines had common parts from the MGB/Marina 1800 fitted to cut down costs and stocks. The sump was enlarged to one side to accommodate the bulge in the block that now housed the bigger MGB oil pump, and was in fact a MGB sump, and the MGB water pump was fitted. The engine was prefixed 16GF. The Riley 4/72 lost its camshaft/cable driven MGA/early MGB tacho on its 16RA engine, and had an electronic impulse unit fitted. It too then had the common 16GF engine, now fitted to both Farinas. Both cars benefit from a 88 degree thermostat, as they tend to run cool on the standard 82 degree one. The 1622cc engine gave the large saloon a decent performance, and it could touch 95mph if you were brave! If you wish to fit a MGB 1798cc engine to a Farina Magnette, ( or to a MGA come to that,) try to locate a 18G or 18GA MGB three main bearing engine. These will bolt directly onto the Farina/MGA's gearbox. The later five main bearing unit requires the smaller car's rear engine plate turning out on a lathe to take the rear neoprene, ( and much improved,) crankshaft oil seal, and the old oil drain on the plate brazing up, and the smaller car's gearbox first motion shaft shortening by 3/4", and, a small 1622/1498cc engines sintered bronze bush fitting into the spigot bearing hole in the rear of the crank. The flywheels of the smaller engines have different fixing bolt spacings to the later five main bearing 1798cc, so the MGB flywheel has to be used, with it drilled accurately to take the 8" Farina clutch cover. Use a Farina clutch plate, so it will match the gearbox splined first motion shaft. Yes, quite a bit of modification.
Steve Gyles

Colin

I have just been doing a bit more browsing. The following answers one of your queries:

All engines with prefix GSE or RKM were of UNIPART origin when BL split its parts organisation.
'E' at the end of part numbers denotes that it is a reconditioned service unit only.

Steve
Steve Gyles

Paul, this engine is not for sale unfortunately. I think it has not been used since reconditioning, as it still has plastic caps in the plug holes..

I will be using it as a basis for engine 2 for my racing coupe. Big water pump is good.

Just need a B sump now!!

If you need a 1622 engine, I do have another, but it is for reconditioning. I think that will be Oxford / Cambridge, as it is green. And not bored for the rev counter drive. Any use to you?

Colin
Colin Parkinson

Steve, thanks for that, and what a brilliant link!!

Colin
Colin Parkinson

Thanks everyone for your help.

It was from a Sherpa or a J2 after all.

Colin
Colin Parkinson

This thread was discussed between 28/03/2007 and 02/04/2007

MG MGA index

This thread is from the archive. The Live MG MGA BBS is active now.