Oil control problems |
Post Reply |
Author | |
AlfaDon
Senior Member Joined: September-18-2011 Location: San Leandro, Ca Status: Offline Points: 407 |
Post Options
Thanks(0)
Posted: January-07-2021 at 2:20am |
As is often heard around the BB court, "Little Help"
I pulled my exhaust manifolds off recently and there is is a fair amount of oily sticky goo in the exhaust ports of my heads. There's less on the PCV side of the engine, where I can see a 3/16" diameter ring around the bottom of the valve guide with a small trail being blown up towards the manifold. On the oil filler neck side of the engine, there is considerably more. I wasn't sure where it was coming from until I saw the PVC side. It's evident that it's coming down the valve guide. It's a relatively new motor with very low hours. The valves were installed by Morgans Marine in Walnut Creek, Ca, a well respected machinist. My guess is that it's not worn guides, but maybe excessive pressure in the crankcase pushing oil down the guides. I removed one of the valve covers and the guide seals are well seated, although I can't inspect them thoroughly without removing the valve springs. When I reassembled the engine I bought a new Motorcraft PCV valve that was for a 351W. It rattles just fine although doesn't pass a lot of air when I bow into it from the valve cover side of the PCV into the carb base. I was thinking about installing a Oil catch can/ breather, but then it would be venting inside the dog house. I'm not aware that it burns any oil. The plugs look great although more of a ruddy tan than gray tan. Any suggestions would be appreciated. Thanks
|
|
Post Reply | |
Tweet
|
Forum Jump | Forum Permissions You cannot post new topics in this forum You cannot reply to topics in this forum You cannot delete your posts in this forum You cannot edit your posts in this forum You cannot create polls in this forum You cannot vote in polls in this forum |