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Re: Help with compression number interpretation... Posted by Ari [Email]  (#2847) [Profile/Gallery]
(more from Ari) on Thu, 6 Mar 2008 09:35:45
In Reply to: Help with compression number interpretation..., S-Works, Thu, 6 Mar 2008 09:01:01 Members do not see ads below this line. - Help Keep This Site Online - Signup |
Those compression numbers look fine. Great, actually. Slight change from dry to wet, very close grouping. Probably within the accuracy of the gauge.
A quart every 1000 miles isn't the end of the world. I assume you don't have any visible exhaust smoke.
If you get smoke on start-up, I'd think valve seals. Yes, I know, you've got new ones. And probably the same valves, which can still leak past the shafts. You can also try the old trick of going down hill and come off the gas - if you see blue smoke in the exhaust, then you're pulling oil past the seals.
If I were in your place, I would simply ignore it. Well, check your oil regularly and keep it topped up. But I wouldn't try and fix it. It's probably a combination of oil seeping past the rings, some from the valve seals, and some from the turbo seals. Maybe even a little getting sucked in from the valve cover. Not a lot from any one place, but a little from a bunch of places.
Even at the cost of oil today, you'll spend more money chasing it than it costs you. Unless you're laying down smoke like a destroyer trying to hide, it's not a big deal. I've had cars that used a lot of oil but ran great. I'll take that any day over an engine that doesn't use any oil but also doesn't run well.
Put it down to a lot of little things on a 15 year old car, count your blessings, and enjoy the drive.
posted by 192.249....
, Thu, 6 Mar 2008 09:35:45 <-- Viewing This Message
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