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Originally posted by bonester
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I have a 95 Excel X3 with an indicated 95000Km.....It has got very hot several times (blocked radiator) and if I can believe the mileage, has sat around unused for ages. Inside the valve cover is a lot of black sooty stuff. I have added a bottle of stop leak (for valve seals) and a bottle of stop smoke, but it still smokes. Compression test is as new. What do you think? Overheating glazed bores/ stuffed oil rings???? Any ideas? Thanks!
8D
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I would first suspect a blown head gasket. I also would check the head for leaks while it is out of the car.
Doing this on a bench will tell you if it is the valve seats or something else.
