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Old 01-16-2014   #44
Dynomite
 
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Join Date: Aug 2009
Location: South Dakota/California
Posts: 3,817
Default Re: 368 LT5 Drinking oil

Quote:
Originally Posted by Mitsumark View Post
Compression test results..Don't know if these are good #s on an LT5..It was done with engine hot, all plugs removed,TB wide open..Each # represents that cylinder..

1.261
2.258
3.265
4.265
5.260
6.261
7.258
8.255

Check was done at a local performance shop..They have no LT5 experience and the techs were all intrigued with the car and how the engine looked..I was speaking with the head tech and told him the history and what I did..He said it may be possible that I may have a stuck oil control ring or valve that is not.seating properly due to carbon buildup from the cold plugs,bad coil,and excessive idling..He said I would probably never talk to him again after this next statement..He suggested when it gets low on oil again to run a qt of Rislone through it for a few hundred miles..He swore up and down that he has witnessed it free sticky valves and rings..Driving around awhile after that today she is still faintly smoking at idle..Mostly on medium/hard gas..I also took notice that the smoke comes from both sides..The car is running Watson headers into a dual chamber resonator,then into a B&B Triflow exhaust..No X or H pipe..Tomorrow I'm changing oil and gonna pull every PCV related hose/pipe to look for blockages..I have heard someone here mention some kind of sponges in the PVC system that can become brittle,break, and even clog passages..If that is true, where are they?Also forgot to mention even the stock plugs were very carboned up after just being in for 800 miles..No wet oil seen on plugs.
Your compression is nice and even and high
Must have plained the heads......

The sponges are in the cam cover breathers which vent through the Air Horn...Marc Haibeck has them.

Cam Covers (Filters and Wear Strips)

Cam Cover Filters


Last edited by Dynomite; 01-16-2014 at 08:21 PM.
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