Quote:
Originally Posted by Al Schober
This problem of the fluid following the root/crest of the threads is also an issue for the water jacket cover plate and the fasteners for the aft end of the reversing gear. With the water jacket, the use of studs vs bolts is a known solution. What do folks think about using studs for the water pump? Might actually make it easier to undo the lower fastener as the threads on the nut can be clean and back off easily. Using a bolt, we're always fighting the sealant.
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We used to use Ford brand weatherstrip adhesive for head bolts(and others) that were set in threads that went into the water jacket.
It was a gooey rubber-cement-like product that set up in the threads and sealed them. The bolts would still be removable without much trouble.
However, we did have to clean the old glue from the bolt threads before putting them back.
I don't see it for sale anymore but I bet the black stuff from 3M would work the same.