262 diesel

johndeerered · Mar 20, 2020

What are the inserts that reduce the size of the intake runners in the head. Seems you would want no restrictions there for more air flow, rebuilding one
just wandering what they for. Thanks

DrAllis · Mar 21, 2020

I've only worked on a handful of those head gasket blowing Buda born engines, and I don't know what you are talking about. The head from a turbo D-19 and S-3&4 D-17 are the same and there's nothing that I can remember having to do with the intake ports. Are you sure you don't have a repaired/sleeved head ?? Absolutely nothing shows up in the parts book.

johndeerered · Mar 21, 2020

When I took the manifold off there were sleeves in the intake ports on
the head that just slide in and reduces the runner down to about a
three quarter size hole. I will get some pics and post them

rustred · Mar 21, 2020

mccormick deering used those also in the intakes , seen them in the 10-20 and w-30's. I just thought it was to get better suction of gas from the carb. kind of a venturie thing.

DrAllis · Mar 21, 2020

Well, for an engine that needs all the air it can get, it doesn't sound like making the inlet hole smaller would be the smart thing to do.

jal-SD · Mar 22, 2020

Early Case SC's had similar "venturi" like rings in between the intake manifolds & heads of the disolate engines. I was told by an old Case mechanic that the idea was to further "atomize" the fuel. Disolate engines are not real common in SC's.

262 diesel

johndeerered

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johndeerered

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rustred

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jal-SD

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