Engine ID required

for those with Series MM sidevalve cars produced between September 1948 and February 1953
Forum rules
By using this site, you agree to our rules. Please see: Terms of Use
Post Reply
gtt1951
Minor Addict
Posts: 978
Joined: Thu Oct 04, 2012 5:01 pm
Location: Farnborough, Hampshire
MMOC Member: Yes

Engine ID required

Post by gtt1951 »

I have recently purchased a "spare" 918 engine and would like to have an expert tell me any dating info, etc., that can be gleaned from the attached pictures - first 2 are shots of the head casting numbers[frame]Image[/frame][frame]Image[/frame]
The next image is of the partial engine ID plate on the flywheel cover (engine was a Gold Seal one).[frame]Image[/frame]
And the next picture shows a much narrower fan belt and pulley, to the one I have currently fitted[frame]Image[/frame]
Currently fitted engine and fan-belt is shown next.[frame]Image[/frame]

Grateful for any information, George.
Image
'50 Low-light with 918 Side-valve engine,
'51 High-light with Side-valve 918 engine,
'55 4-dr with 803 engine,
'56 Traveller with 1098 engine.
TvdWerf
Minor Addict
Posts: 550
Joined: Wed Jul 28, 2010 9:39 am
Location: Netherlands, Drenthe
MMOC Member: No

Re: Engine ID required

Post by TvdWerf »

Look for a rond copper plate like this, you can see the number also stamped above the copper plate[frame]Image[/frame]
On the backside from the engine, at the gearbox mounting, at my engines only the last 2 numbers are stamped, but on some engines the whole number:[frame]Image[/frame]
And last but not least, 2 of my engines have the number on top, above the waterpump:[frame]Image[/frame]
Hope you have enough info, so we can get the number.
The green one is from 1951, the top photo from an end 1950 car.
MM '51 LHD sidevalve
gtt1951
Minor Addict
Posts: 978
Joined: Thu Oct 04, 2012 5:01 pm
Location: Farnborough, Hampshire
MMOC Member: Yes

Re: Engine ID required

Post by gtt1951 »

Where should the round plate be located?
Image
'50 Low-light with 918 Side-valve engine,
'51 High-light with Side-valve 918 engine,
'55 4-dr with 803 engine,
'56 Traveller with 1098 engine.
seriesmm_1
Minor Fan
Posts: 180
Joined: Wed Aug 10, 2011 3:52 pm
Location: Pembrokeshire
MMOC Member: Yes

Re: Engine ID required

Post by seriesmm_1 »

Beneath the dynamo
Regards
BrianR

TvdWerf
Minor Addict
Posts: 550
Joined: Wed Jul 28, 2010 9:39 am
Location: Netherlands, Drenthe
MMOC Member: No

Re: Engine ID required

Post by TvdWerf »

Here:[frame]Image[/frame]
MM '51 LHD sidevalve
BLOWNMM
Minor Fan
Posts: 281
Joined: Tue Dec 09, 2014 6:14 am
Location: Australia
MMOC Member: No

Re: Engine ID required

Post by BLOWNMM »

G'day all
The top pic with 17K2 is a casting date. The first numbers are the day, the letter is the month ie.A is January B is Feb and so on and the last number is the year. 17K2 was cast on the 17 November 1952. The second pic with the number 31693 is the part number. The 4th pic there seems to have been fitted a later C40 dynamo and the belt is to suit the narrower dynamo pulley and then passing over the water pump pulley which is meant for a 'B' section belt.
Cheers Bob
Image
gtt1951
Minor Addict
Posts: 978
Joined: Thu Oct 04, 2012 5:01 pm
Location: Farnborough, Hampshire
MMOC Member: Yes

Re: Engine ID required

Post by gtt1951 »

Bob, thanks very much for that info. So my purchase is slightly newer than the car (14 Mar 1951 - factory leaving date).
This engine block doesn't have a water drain fitted (just a blanking plate) - here is the pic of the full engine as bought.[frame]Image[/frame]
Image
'50 Low-light with 918 Side-valve engine,
'51 High-light with Side-valve 918 engine,
'55 4-dr with 803 engine,
'56 Traveller with 1098 engine.
BLOWNMM
Minor Fan
Posts: 281
Joined: Tue Dec 09, 2014 6:14 am
Location: Australia
MMOC Member: No

Re: Engine ID required

Post by BLOWNMM »

Hi Guys
I do not know of any MM engines with a drain plug. The drain tap for the engine is in the bottom radiator tank on the right side.
Cheers Bob
Image
gtt1951
Minor Addict
Posts: 978
Joined: Thu Oct 04, 2012 5:01 pm
Location: Farnborough, Hampshire
MMOC Member: Yes

Re: Engine ID required

Post by gtt1951 »

BLOWNMM wrote:Hi Guys
I do not know of any MM engines with a drain plug. The drain tap for the engine is in the bottom radiator tank on the right side.
Cheers Bob
Hello Bob,
Out of the 3 engines, that the seller had, one had a blanking plate instead of a water pump and the block drain opening had a "bottom radiator hose" fitted to it), one had everything as on my fitted engine (includes block drain tap), and the one I bought, without a drain tap, but a blanking plate where one can be fitted. The latter 2 had water pumps and pipe work for heater take-offs.
ESM do sell the appropriate alloy block drain cover but, apparently, no matching gasket.
George.
Image
'50 Low-light with 918 Side-valve engine,
'51 High-light with Side-valve 918 engine,
'55 4-dr with 803 engine,
'56 Traveller with 1098 engine.
Post Reply