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Headgasket trouble? 900 1997

Interesting photos we don't often get to see here. Head gasket obviously failed at the front of #1 cyl. That in turn caused the water pump gasket to fail, not likely the other way around. Often times when the coolant gets sucked into the cylinder on the intake stroke you end up with a spotless, steam cleaned cylinder and plug. In your case, based on the look of the top of the piston I'm guessing it was mostly exhaust gasses going out into the coolant as the back side of the water pump is the intake suction side of the cooling system. Others may have differing thoughts. Just curious, how long do you figure this condition was present?
--
Dave -still with 940's, prev 740/240/140/120 You'd think I'd have learned by now






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