Quote:
Originally Posted by CSchmidt
I'm a bit farther along in the failure process. I'm at a quart every 300 miles and it has been holding at that for the last 6000 miles, currently I'm at just over 160K miles. I bought the car at 130K miles and it was using a quart every 2000 miles. Just watch your consumption. A quart per 3000 would be normal and acceptable for many 603's.
I did a compression check recently and the cylinders were all in the 420-450 range if I remember correctly. The car starts and runs great, it just kills all flying bugs as it goes by. So that doesn't seem to be an indicator of wear in my case. Do others have different observations?
Chuck
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I would perhaps check for leaking turbo bearings. When consumption reaches your quoted levels compression should already be down to some extent on a bad cylinder in my opinion. Remember on most examples of these engines all the oil burning or the majority of it is being fed through one cylinder. Feeding a quart through one cylinder every three hundred is about the same as an overall burn rate of 50 miles per quart if all cylinders had equal problems.
This type of rate would normally be consistant in most cases with an engine with sub standard compression. Of course this is just an opinion and probably wrong as well. Although if it were my car a quick check of the turbo for leakage at the bearing seals might enter my mind. There are and always will be exceptions to any general concencious.