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I am getting an overheat alarm and slowdown w/this engine. I had the dealer install a complete new impeller pump, New popit valve, spring and gromet. The thermostat opens at App. 130 degrees. The dealer boiled it out with muriatic acid and it still goes off and shuts down. I was thinking it was the thermal sensor, so I replaced it too. This engine started out doing this at about 3400 RPMs and now goes off at about 4800 RPMs. The dealer says dont open the water jackets and he dosent dare to boil it anymore. Any ideas anyone. Texasfolk
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Recheck water pump, inspect it carefully and if ok then remove head and exhaust plate and clean water jackets. -
Waterjacket plates
The mechanic at the dealership said that I would get into something I would not like as the bolts are pretty much locked in with corrosion and I would end up twisting off the bolt heads and would not be able to get them out. Would appreciate any more info you may have on this plate removel job......Thanks for your intrest, BillComment
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I have run into similar problems with bolts stuck in place as if welded there. after breaking of a few flush with the threaded area, and gone through the frustration of drilling out, and taping the threads, I have arrived at the following conclusion. Assume that you are going to break then all. Once you have done this the next part is easy. Grind or file off the head of each bolt you want to remove. a dremel comes in handy for this. Now remove the affected area, in this case the cover. Once the cover is removed you will have a series of studs sticking up (your old bolts). soak the area where they enter the block with a good penetrating oil and let it sit at least over night, now lightly tap on the stud with a small hammer, to help loosen up the corrosion. Soak them overnight again. now put your vise grips on one of the studs and try to move the stuck bolt a little bit in either direction. If it starts to move, spray with penetrating fluid, and move it back and forth a little bit more. Keep doing this back and forth motion until you can remove the bolt. If you can apply a little heat that helps too but be careful that you don't apply enough to melt seals or metal. Take your time and if it feels like it's not going to move, soak it again. sometimes though the bolts are so corroded they are going to break anyway, then unfortunately its drill and tap time.Comment
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waterjackets
thank-you bumperfood. I have had a couple of good friend mechanics tell me the same thing, but had never tried it..BillComment
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