Crank bolt hard to loosen - 5sfe, SOLVED Options

[dgbldr]

I can't loosen the bolt on the front of the crank. It's on real tight.

I tried an air impact rated at 600 ft-lbs. No go. Not real confident it actually puts out that much torque, but still...

Also made a tool similar to the factory tool to hold the pulley. Long plate with 2 bolts through it into the threaded holes on the pulley. Torqued plate hard against pulley. Used cheater bar to turn crank bolt. No go, bent the 2 bolts. I estimate I put about 250-300 ft-lbs on it.

Has anybody run across this problem before and found a solution?

This post has been edited by dgbldr: Apr 24, 2009 - 6:47 PM

[azian_advanced]

if torque and lubrication methods don't work, use heat. no bolt has ever been too tight for all 3 combined! . use a small propane torch or someting, it works well for tough suspension bolts but i'd be careful since you're dealing with a critical section of the engine. you wouldn't wanna warp the pulleys if you're not too careful.. but i'd leave this as a last resort.