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#1 Engine Stampings

Posted: Wed Oct 21, 2020 1:29 am
by mxke
Hi:
I have started disassembly of the engine and a couple of questions.
There are 5 "F" and one "G" stamping on the block beside the cylinders. I assume this was a sizing stamp at assembly?
There are a set of three letters on the block and bearing caps as well as the front cover. Is this the original assembly person who stamped these?
Thanks,
Mike
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#2 Re: Engine Stampings

Posted: Wed Oct 21, 2020 1:52 am
by abowie
Like you I think that the stamps on the caps are the initials of the engine builder and numbers to identify which cap goes where.

I haven't seen stamping on the head like that.

In a recent thread I found out that the engine number is stamped on the crank in early cars as is shown on yours.

#3 Re: Engine Stampings

Posted: Wed Oct 21, 2020 2:23 am
by mxke
So far the block, head, flywheel and crank all have the same numbers!

#4 Re: Engine Stampings

Posted: Wed Oct 21, 2020 2:53 am
by Harold Lang
The stampings on the block gasket surface face are the piston bore grades. If pistons are original, the same stamping should be found on the piston. Simple method of maintaining correct bore clearance.

Harold

#5 Re: Engine Stampings

Posted: Wed Oct 21, 2020 8:39 am
by 288gto
abowie wrote:
Wed Oct 21, 2020 1:52 am

In a recent thread I found out that the engine number is stamped on the crank in early cars as is shown on yours.
Not just early cars Andrew, my 69 S2 has the engine number on the crank, and flywheel too.

#6 Re: Engine Stampings

Posted: Mon Oct 26, 2020 11:18 pm
by mxke
I see why it is a good idea to remove the sludge plugs...

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#7 Re: Engine Stampings

Posted: Mon Oct 26, 2020 11:21 pm
by mxke
All but one cotter pin was still in the castellated nut. So on the rebuild there are 12 point nuts to replace the castellated + cotter pin?

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#8 Re: Engine Stampings

Posted: Mon Oct 26, 2020 11:26 pm
by mxke
On the main bearing bolts, there is a washer to replace the lock tabs now? The engine stand idea works wonderfully!

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Time to replace the con rod bearings...

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#9 Re: Engine Stampings

Posted: Mon Oct 26, 2020 11:34 pm
by mxke
On the main bearing bolts, there is a washer to replace the lock tabs now? The engine stand idea works wonderfully!

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Time to replace the con rod bearings...

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#10 Re: Engine Stampings

Posted: Tue Oct 27, 2020 2:28 am
by abowie
mxke wrote:
Mon Oct 26, 2020 11:21 pm
All but one cotter pin was still in the castellated nut.
Replace all of them with new bolts and nuts.

I see you plan to replace the conrod bearings. Have you replaced the main bearings as well?

#11 Re: Engine Stampings

Posted: Tue Oct 27, 2020 4:06 am
by mxke
They will be replaced as well.