View Single Post
Old 04-19-2024, 11:31 PM   #22
MAURICE BLENDHEIM
Senior Member
 
Join Date: Jun 2011
Location: Langley (no igloos), British Columbia, Canada
Posts: 554
Likes: 278
Liked 230 Times in 80 Posts
Default Re: 402 stocker engine

Toy... Something I continue to do is when the block comes back from the Machine Shop, I still wash the engine and most importantly the bores with a bucket full of hot water and Tide Laundry Detergent. It is amazing how black a rag will get scrubbing the walls. I finish up with a scrub brush. I believe the bore finish can't be clean enough, I normally wipe ATF on the bores, when dry to keep from rusting. We have never had any ring seal issues, causing high crankcase pressure. On the Dyno 5 pulls is what it takes, to have stable results.
One thing I have had happen is the valve seals have come off the intake guides. They then run with the valve and the seal actually acts as a pump, pumping up against the top of the guide, allowing oil the enter the valve pocket. This results in the backside of the Intake Valve being oil soaked and allowing oil to enter the Combustion Chamber causing embarrassing smoke clouds. MB

Last edited by MAURICE BLENDHEIM; 04-20-2024 at 10:30 AM.
MAURICE BLENDHEIM is offline   Reply With Quote
Liked