[A26B]

I think the very most important charateristic of the material used for cam cover sealant is "non-shimming effect". Choosing an anerobic sealant to keep oil from leaking is one thing, but not the most important. The journal bearings for the camshaft are machined directly into the cover & cyl head. If the sealant used has any shimming effect, it will open up the journal clearances and all manner of bad things could happen, none of them good.

Choose wisely grasshopper, it aint just about huckey -puck.

We offered Loctite 518 because it was about the only anerobic sealant besides Permabond A136 that had any real track record. We are going to discontinue offering Loctite 518 just as soon as the Permabond A136 is in stock. I know A136 works and works right.