Quote:
Originally Posted by Brian Carlton
If you've checked the cylinders and they don't show any sign of ovalizing.......your compression is good.........blowby is minimal..........then, my only suggestion to you is to consider the turbo seals as the problem.
I've personally watched a 603 consume two quarts of oil within 40 miles.........with some decent white smoke out the back........but otherwise running perfectly fine.
The culprit was the turbocharger.
Take the vehicle for a drive and bring it back and remove the crossover tube. Check for oil in the tube or oil at the turbo discharge outlet. If you see oil droplets there, you've found your culprit.
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I took the turbo off three times and finally put one on that came off of my car, BEFORE the cracked head and when the car was using ZERO oil and stayed at the top of the dip stick between oil changes. That is how I KNOW that all 603 of the 87 variety DON'T just use oil, just because it is a 87 603 and is supposed to or is expected to consume oil.
I never say never, however! But do try to diagnose my car issues in a systematic and logical and orderly manner beginning with the easiest potential solution first. I didn't want to take that head off, but am glad that I did, even if it won't stop the oil consumption. But after going down all of the easiest roads; I didn't have much choice, if I wanted to keep the car. And still might have to take it down next year. And ovaling of the cylinders, I found none and a couple of the cylinders didn't even have a trace of ring ridge and the ones that maybe did have a ridge, was barely noticeable. This is what has been or was so baffling while searching for the answers.
BenzDiesel