The 1947 - Present Chevrolet & GMC Truck Message Board Network - Installing engine parts on painted surfaces

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brown7373

02-03-2018 07:49 AM

Installing engine parts on painted surfaces

I am finishing the 350 crate engine for my 72. Can I install the exhaust manifolds to painted surface on the engine or should I remove the paint? Same question for oil filter with contact surface on engine painted.

Perpendicular

02-03-2018 08:12 AM

Re: Installing engine parts on painted surfaces

Quote:

Originally Posted by brown7373 (Post 8176974)

I have always cleaned that area. My thoughts were the paint will only give you some uneven surfaces which can cause leaks and when you take off what you put on (I.E. the oil filter) it will take the paint off anyway.

YMMV though :)

-Paul

special-K

02-03-2018 08:27 AM

Re: Installing engine parts on painted surfaces

You want metal to metal.

bill3rail

02-03-2018 05:33 PM

Re: Installing engine parts on painted surfaces

Quote:

Originally Posted by special-K (Post 8176981)

You want Gasket metal to metal.

Corrected Maybe?

bbrriiaann1973

02-04-2018 03:02 AM

Re: Installing engine parts on painted surfaces

Should be bare metal

special-K

02-04-2018 08:06 AM

Re: Installing engine parts on painted surfaces

Quote:

Originally Posted by bill3rail (Post 8177289)

Corrected Maybe?

Yes, metal to metal on mating surfaces, with gaskets where required.

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