CRG Discussion Forum

Camaro Research Group Discussion => Maintenance => Topic started by: joesauer on August 03, 2021, 03:03:30 AM

Title: Intake Manifold Oil Seepage
Post by: joesauer on August 03, 2021, 03:03:30 AM

68 Camaro 350 with Edelbrock performer intake manifold.   Getting a little oil seepage around center bolts.  No problem for 400-500 miles then slight seepage starts again.  Before resealing I always clean the bolts in solvent, clean the bolt holes & run a pipe thread reamer to be sure there's no residue/oil, etc, in the bolt holes.   I use ARP thread sealer.   Any suggestions for a better thread sealant?   How about Permatex High Performance Sealant 56521?

Title: Re: Intake Manifold Oil Seepage
Post by: z28z11 on August 03, 2021, 04:45:06 AM

Use Permatex non-hardening thread sealant (or Form-a-Gasket, old #2) - definitely oil resistant, I've always used it to seal head bolts, never failed me yet in 50 years of engine rebuilding. The only thing I dislike about it - don't get it on your hands or clothes (or anything else you don't want stained), it's a real pain to get off of you once it gets there. Great stuff -

Regards,
Steve