Originally Posted by
hsukaria
I'm done loosening the Fox 40 crankcase to shaft interference. I used ATF and some silver polish I found around the house. It took a lot of turning but it was the safest route to loosening the case. Will to wait a while before testing. It's 15 degrees F now.
for those who may find this usefulI use luxtrox for break in but I use it sparingly but in a running engine. If the engine is too tight I recently started using a marvelous new variety of Dupont 7 for rubbing down automobile paint.