Join Date: Sep 1999
Location: Vancouver, Washingon
Thanked 0 Times in 0 Posts
Re: More new engine questions....paint and oil?
I do not agree with the 20W50 oil. I use 10W30. I paint my engines black, disapates heat best. As for finding oil leaks, black is not a friendly paint color to help out. You could go flat or low gloss black, the shine of oil would help find the source of an oil leak.
I have a couple recommendations to help reduce the chance of oil leaks. The Vortec heads will use the center bolt valve covers, I recommend using the original equipment GM valve cover gaskets with the center bolt valve covers. The center bolt valve covers do not leak oil as bad as the older valve cover design did! I also recommend using a new aftermarket design, one piece oil pan gasket, there designed for the older Small Block Chevy engine blocks with the two piece rear main seal, and can be used with either left or right side dipstick location. Check with Fel-Pro or Detroit gaskets for part # of the one piece oil pan gasket. If you check with a local parts store for an aftermarket one piece oil pan gasket for a Small Block Chevy, you will get some very strange answers and looks. The reason for the very strange looks and answers is because there is not a make, model and year that Chevy used the one piece oil pan gasket for. A very thin bead of silcone RTV goes a long way to help prevent oil leaks. A glob of RTV is equal to a sorry job. Be sure to use some RTV silcone on the inside of the slotted grove of the harmonic balancer before putting the balancer on the end of the crankshaft. Even GM uses a small amount of RTV to seal the wood druff key on the cranshaft. It's also a good idea to use redi-sleeve on the end of a used harmonic balancer. Usually a used harmonic balancer will have a groove from the timing cover seal. The redi-sleeve will sleeve over the worn groove.