Posted by Greg Coffin [172.68.34.7] on Tuesday, April 04, 2017 at 01:28:06 :
In Reply to: Re: Help! - Crankcase Over-Pressurization on 251 posted by Milo in Pa [172.68.65.165] on Monday, April 03, 2017 at 21:59:11 :
Thanks for the specs Milo. Our readings are a bit lower here since were at 5500ft altitude, but you are right that the blow-by is causing the problem. The PCV valve should be able to handle some of it, but the clog is causing the oil leak. I think the engine will be getting a complete rebuild in the near future.