Re: Best Way to Unseize an Engine

[legendre]

quote Steve A W:

Do Yourself a favor and skip the impact gun.
If the engine doesn’t break free, You run the risk of over tightening The flywheel and ruining it.

Heh, wow! Yeah, that is definitely in the "DO NOT RECOMMEND" category.

I mean, a couple +quick+ shots from the impact, to give it a jolt.. maybe. But rapping on it while the pistons remain stuck is just begging to twist the crank, crack the flywheel, ruin the thread, and so on.

There’s a reason you can almost always R&R a flywheel bolt using an impact tool, without the aid of a strap wrench or flywheel holder. The inertia of the flywheel backed by the compression of the engine ensures that the whole crank essentially sits still while the flywheel bolt is being torqued.