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Austinsevenfriends
Engine Number Identification - Printable Version

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Engine Number Identification - Jamie - 16-12-2018

Is there a site anywhere that would help me to identify an engine type or its age from its number: M104927?

Regards,

Jamie.

RE: Engine Number Identification - Mike Costigan - 16-12-2018

104927 is an early coil-ignition engine, dating from January 1930.

RE: Engine Number Identification - Jamie - 16-12-2018

Thank you. Seemingly not the engine originally fitted to the car which is a 1935 Ruby.

RE: Engine Number Identification - Mike Costigan - 16-12-2018

If it's fitted to a Ruby, I would be curious to know how the starter motor is located. Could it, perhaps, be 164927, which would date from early 1933 and at least be a forward-mounted-starter unit? Or maybe 204926 which would be an early Ruby number ...

RE: Engine Number Identification - Martin Prior - 16-12-2018

(16-12-2018, 06:51 PM)Jamie Wrote: Is there a site anywhere that would help me to identify an engine type or its age from its number: M104927?

Regards,

Jamie.

The easiest reference for reasonably accurate dating is the A7CA chassis register.

RE: Engine Number Identification - JonE - 16-12-2018

its got the right size crankshaft anyway!

RE: Engine Number Identification - Jamie - 16-12-2018

(16-12-2018, 08:06 PM)Mike Costigan Wrote: If it's fitted to a Ruby, I would be curious to know how the starter motor is located. Could it, perhaps, be 164927, which would date from early 1933 and at least be a forward-mounted-starter unit? Or maybe 204926 which would be an early Ruby number ...

Mike,

This is the number. The starter motor is not in the car, but it would appear to have faced into the engine bay, towards the radiator. I can check later.

JonE:
Could you please expand as I am not that familiar with the differences?

Martin:
Thank you.


Regards,

Jamie.

   

RE: Engine Number Identification - JonE - 16-12-2018

first of crank shaft 1 5/16" crank was in top 99,000s, as I know I'm glad mine is!
You need Wyatt's book as Martin said.. then you can see what you have and what you haven't.

So presumably you DO have the later, smaller, rear mount starter?

RE: Engine Number Identification - Jamie - 16-12-2018

(16-12-2018, 09:18 PM)JonE Wrote: first of crank shaft 1 5/16" crank was in top 99,000s, as I know I'm glad mine is!
You need Wyatt's book as Martin said.. then you can see what you have and what you haven't.

So presumably you DO have the later, smaller, rear mount starter?

JonE,

Thank you for the explanation. I shall posr a picture of the starter motor area of the engine tomorrow.

Jamie

RE: Engine Number Identification - Mike Costigan - 16-12-2018

That certainly looks like a 1930 crankcase.