Thread: numbers

Hi

To clean the serial number up, I have heard but never been shown, that some type of acids, will remove the scratch marks enough to allow you to read the spoilt digits.

Good luck and Cheers Arthur

Originally Posted by dreamin'

When looking for replacement engine parts, I sometimes need to refer to engine number, but the number stamped on the head near manifold is difficult to read.

Do you realise the engine number is in two places - just in front of the exhaust manifold and at the rear of the exhaust manifold - have you checked both places.

Garry

If the original engine is still fitted ,most likely the number is 173601063.
W.

That is someone's very nasty attempt to obliterate a number.

The sequence for the original engine should have been eight digits something like 57111***

(e.g. Chassis 57661308 had engine 57111137 - 10/8/55
...... Chassis 57661399 had engine 57111635 - 27/7/55)

Later 1956 86" spread bore engines had a nine digit sequence 1706*****
(e.g. chassis 177600116 had engine 170601059 - 24/2/56)

So yours is likely a 1956 spread bore 1997cc engine "170601063"

BTW the other number "19 4 55" is the casting date of the block.

Diana

Originally Posted by garrycol

Do you realise the engine number is in two places - just in front of the exhaust manifold and at the rear of the exhaust manifold - have you checked both places.

Garry

¿que?

I have never known that before!

Originally Posted by B.S.F.Nut

If the original engine is still fitted ,most likely the number is 173601063.
W.

The prefix 173 is for export LHD models and I doubt many (if any) of those engines ever arrived arrived in Oz.

Originally Posted by Lotz-A-Landies

¿que?

I have never known that before!

Back of engine


Front of engine

I don't doubt you had a basis for it, just have never seen or heard of the number in that location before.

Do you know if it is all the S1 engines or only particular models?

Originally Posted by Lotz-A-Landies

Do you know if it is all the S1 engines or only particular models?

Certainly the two 2Litre spread bores that I have, have them on both ends. The siamese bore I have has a bit of crude that will not come off at the back but it does not look as if there is an engine number on it at the back (has one at the front though).


Garry

Originally Posted by Lotz-A-Landies

The sequence for the original engine should have been eight digits something like 57111***


Later 1956 86" spread bore engines had a nine digit sequence 1706*****

So yours is likely a 1956 spread bore 1997cc engine "170601063"

BTW the other number "19 4 55" is the casting date of the block.

.

Thanks for all your responses - I think the 1706 number looks right.

So, is this likely to be the original engine? Chassis is '55, engine block is '55, but engine number is '56. I've never understood LR 'production years', but could an engine built in calendar year '55 be stamped production year '56?

Also, I looked for the second engine stamp on mine but couldn't see anything, except for a patch that looked like it had been filed smooth, just above the rectangular cover plate, exactly where the same mark is on garrycol's 'back of engine' pic.

Hmm

D