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Paint over bolts on lower engine cases?

Posted: Fri Apr 06, 2018 8:37 pm
by sixinoz
Were the lower casing bolts painted at the factory or were the cases painted then assembled at the factory?

Re: Paint over bolts on lower engine cases?

Posted: Sat Apr 07, 2018 5:23 am
by jnnngs
Cases were painted, then assembled.

Paul.

Re: Paint over bolts on lower engine cases?

Posted: Sat Apr 07, 2018 8:00 am
by daves79x
No, the case bolts were not painted - they were all bright zinc plated. The proper way to re-paint an engine during rebuild is to paint each individual part, have the bolts re-plated , then carefully assemble. More work, but correct.

Dave

Re: Paint over bolts on lower engine cases?

Posted: Sun Apr 08, 2018 3:41 am
by sixinoz
Thanks for the replies - now to clean all the paint off them from a previous paint job@

Re: Paint over bolts on lower engine cases?

Posted: Sun Apr 08, 2018 3:55 am
by sixinoz
Is it possible to remove the bolts and replace them one at a time without any detrimental effects?

Re: Paint over bolts on lower engine cases?

Posted: Sun Apr 08, 2018 7:45 am
by daves79x
I suppose you can do that - is the engine out? Remember, the large bolts underneath are crank cap bolts and need torqued carefully. Cleaning the paint from each bolt may reveal some pretty shabby-looking heads. It'd be better if the engine is out to remove them all and have them plated. This is kind of how they should look:

Dave