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Cooling Problem w/ 4.3 GL vovlo I/O
Why these plugs are out is still suspect so you are right, it could involve
any of them. The boat owner seems pretty certain that the engine did not freeze so it's still a mystery to me. I've never seen these come out as the result of anything other that freezing or corrosion. The ones at the sides are very low in the cooling jackets. I suppose defective installation is a possiblity. "Tim" wrote in message oups.com... James wrote: I agree that it's certainly a good idea to get them in to make sure there are no other problems but similarly I would not pull the engine just to replace a couple casting plugs. He's not going to be in a position to pull the engine himself and a yard will charge him a grand or so to do it. Please remember though, that there are two plugs on the back of the engine between the block and the flywheel. Obviously that if a couple plugs are damaged, there may be more, and water could eventually seep from the back of the engine, so the engine would have to be removed. Also a head gasket could be leaking. I've seent hem not leak coolant into a cylinder, but be lieaking to the outside. Highly improbable, but not impossible. |
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