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Engine Painting
#106748 Fri Nov 29 2002 03:00 AM
Joined: Mar 2002
Posts: 9,030
Master Gabster
Is it necessary to apply primer to the engine block before coating it with engine paint? I would assume that primer does not have the appropriate heat withstand capabilities ?


1951 GMC 1 Ton Flatbed -- It is finally on the road and what a great time I have driving it!
1951 1 Ton Completed


My Chevy Master 4 Door is on the Road!
Re: Engine Painting
#106749 Fri Nov 29 2002 03:36 AM
Joined: Jul 2000
Posts: 504
5
Member
Others may differ but I have always just primered the sheet metal parts, oil pan, valve cover , etc., and sprayed engine paint over the bare block..


Bill M
53 GMC Hydra-Matic

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Re: Engine Painting
#106750 Fri Nov 29 2002 02:38 PM
Joined: Aug 2000
Posts: 587
B
Shop Shark
The Bill Hirsch company, which sells really good engine paint, advises no primer for cast iron applications.

Re: Engine Painting
#106751 Fri Nov 29 2002 08:01 PM
Joined: Mar 2002
Posts: 9,030
Master Gabster
Thanks for the replies. Now I know how to proceed.


1951 GMC 1 Ton Flatbed -- It is finally on the road and what a great time I have driving it!
1951 1 Ton Completed


My Chevy Master 4 Door is on the Road!
Re: Engine Painting
#106752 Mon Dec 02 2002 02:59 PM
Joined: Sep 2002
Posts: 62
5
Wrench Fetcher
I, too, am getting ready to paint my engine. Currently the engine is painted blue. I plan to go back to the original grey. The blue paint is in good shape and adheres well, but the engine is pretty dirty and greasy.

Is cleaning up the engine with a good degreaser good enough or should the old paint be removed? Does it need to be media blasted?

Re: Engine Painting
#106753 Tue Dec 03 2002 12:41 AM
Joined: Oct 2001
Posts: 3,459
Extreme Gabster
Clean it up and degrease it. Any paint that stays on after that deserves to be there. You can paint over the old stuff, as long as it was cured by running the engine for a while. Don't sand blast it, you will get it inside the motor.


Paint & Body Shop moderator
A lone amateur built the Ark. A large group of professionals built the Titanic.
Re: Engine Painting
#106754 Tue Dec 03 2002 02:35 AM
Joined: Mar 2002
Posts: 9,030
Master Gabster
I cleaned my block up with Polyclense, a cleaner which is made for cleaning paint brushes. I used rubber gloves and a brush. It took the best part of a day but it removed 50 years of grease, farm dirt etc. right down to the gray cast iron. It even removed surface rust.


1951 GMC 1 Ton Flatbed -- It is finally on the road and what a great time I have driving it!
1951 1 Ton Completed


My Chevy Master 4 Door is on the Road!
Re: Engine Painting
#106755 Tue Dec 10 2002 10:00 PM
Joined: Apr 2002
Posts: 11
F
Member
I bought the engine kit from por-15. followed the instructions and it turned out fantastic...brush on-dried like it was sprayed-NO brush marks.


63 K10 Fleet 454

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