1937 F-12 engine question

c.mottl · Feb 15, 2017

Hey all, A Guy I work with just got his C113 block back from the machine shop. He said they found a small freeze plug (casting plug) after they cleaned the block.

I haven't seen the engine, but he said he doesn't see any spot for the plug to go.

I believe he said it was the size of a dime? (small anyway)

Any input would be much appreciated, Thanks

DC Snider · Feb 15, 2017

The only thing I can think of is the Welch plug that goes in the bore opposite the governor shaft.

Fritz Maurer · Feb 15, 2017

What do you mean "cleaned the block"? If it was boiled in a standard degreasing vat, you may have just wasted the governor shaft bushing, unless it was removed first. The backing will still be there, but there won't be any babbitt in it. You have to knock that plug out anyway, to fix the bearing. That bearing holds the governor gear against the cam gear. The camshaft and governor will be ruined if assembled without this bearing/bushing. Fritz.

c.mottl · Feb 15, 2017

Thanks for the info. Not sure how it was cleaned?
Not my engine so not sure.

c.mottl · Feb 15, 2017

Ok, Thanks. i will pass this along.
I bet that is it though. Thanks again!

1937 F-12 engine question

c.mottl

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DC Snider

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Fritz Maurer

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c.mottl

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c.mottl

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