Sealing Engine Case Hardware?, To goop or not to goop? Options

[bkrantz]

In theory, sealant on all the mating surfaces for the engine case halves should contain oil and prevent leaks, and (with a couple of exceptions) the design of nuts and bolts, and where they attach, was not intended to form a seal.

But many mechanics swear by applying lots of sealant to every piece of case hardware. Is this overkill? Anyone had good luck lately with just sealant on the case halves?

[Shivers]

Hi Clay. I googled Drei-Bond, haha could you post the numbers off the tube. They make a lot of sealants evidently. Never thought about it, but those case halves can move a tiny bit.