Reply To: Using Anaerobic sealer

[Mumbles]

Respectfully, I have used anaerobic sealer on spaghetti grooved motors with success. OMC’s Gel Seal was the go to sealer years ago while building three cylinder 70 horse motors with grooved cases. The machined surfaces of the cases do contact each other so the sealer will work as long as the surfaces are prepared properly. That means clean and bare aluminum as the copper in the aluminum used is what helps kick off the curing process. Copper based primer is used to speed up the curing when the motor is going to be used shortly after it’s together.

The 3M sealer has its place but I find it hard to use and it seems to get everywhere and makes a mess. Something like Anti-Seize or Sikaflex does.