What Kills a 360?
#11
01-20-2009 | 03:45 AM
Professional
Joined: Jan 2009
Posts: 116
Likes: 0
From: Fresno, CA
I agree that you should just run it. technically there is room for a 20 psi difference (according to Haynes) so although it could be a cracked head etc, there may in fact be nothing wrong with your engine (if you feel optimistic). If you develop a mis or other symptoms it wouldnt hurt to dig a little deeper. Mine went 260k without overhaul so i'd say yours is just a pup!lol
#12
01-20-2009 | 09:34 AM
Captain
Joined: Jul 2008
Posts: 678
Likes: 0
From: Houston, TX
Actually, I think those numbers look pretty good for an engine going on 200k. If you're not getting a miss in #7, then I wouldn't worry too much about it. Like others have said, just keep running it and don't look back. If you have a vacuum gauge and time, you might be able to pin-point the problem to an exhaust valve, etc., but it would be a useless exercise IMO.
#15
01-21-2009 | 09:44 AM
Captain
Joined: Jul 2008
Posts: 678
Likes: 0
From: Houston, TX
The vacuum gauge will fluctuate and behave in a certain way if there is a burnt valve present. I would have to pull out mine and look at the documentation again because I can't remember how it's supposed to behave when you open the throttle and let it come back down to idle. It's not any exact science, but it can give you some clues as to what's going on.
