1998 Buick Lesabre Excessive Oil Consumption

Tiny
RACEFAN966
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So just out of curiousity has any one checked to see if the engine will produce pressure through the pcv system when it isn't hooked to vacuum? If you remove the pcv and open the oil cap does it push compression through there? I must admit that this is an interesting problem which is usually a ring or valve problem but it sounds like this may not be. How tight are the valves anyway? I don't mean disconnect the PCV system and drive it as that would not be good for the engine gaskets but while it is in the shop with like a fuel pressure tester will it produce any pressure. Just idea's
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Wednesday, February 4th, 2009 AT 8:56 PM
Tiny
444FIRE
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Thanks for the ideas, I'll certainly ask, but unfortunately at this point the engine is tore apart and we won't be able to check till it's back together.
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Thursday, February 5th, 2009 AT 6:52 AM
Tiny
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Ok great let me know what is found.
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Thursday, February 5th, 2009 AT 9:52 AM
Tiny
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The engine was reassembled using a FelPro gasket for sealing the intake to the heads. The FelPro gasket has a seal around the entire outer perimeter AND around the EGR ports, whereas the GM gasket did not. Testing will begin on Monday to see if I get more than 800 miles/qt. Of oil. All of your past input is appreciated. Thanks.
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Sunday, February 8th, 2009 AT 9:34 AM
Tiny
RACEFAN966
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No problem let me know how it turns out. Thanks for keeping me informed.
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Monday, February 9th, 2009 AT 9:57 AM
Tiny
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Only 811 miles before a qt. Of oil was needed. Car back in shop. Engine tear down this week. I hope they find the smoking gun. I'll keep you in the loop.
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Wednesday, March 25th, 2009 AT 10:02 AM
Tiny
444FIRE
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Oil rings nearly welded to pistons. Not certain why. Incorrect size? Shop says no way to measure before installation due to design. Know a secret to confirm they are >30 over like the compression rings? Thanks.
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Thursday, March 26th, 2009 AT 5:33 PM

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