> Life for seals can go down, way down for just a 20 degree rise in max temp. > It can be the max temp, not the running temp that determines seal life. > Hi all: This is part of the reason I decided to try ceramic coating the seal surface of the head, the other reason is to try to stop corrosion.
> Would heads crack less if they were not left to hot soak after each > shut-down? > Or would the faster cooling make the heads crack worse. I do like the idea of circulating the coolant after a hot run but only so the engine does not heat up more than operating temp just after shut down. I wonder how much hotter the head gets after shut down. -- Todd Francis '86 Westy Syncro '91 Tristar
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