2002 Oldsmobile Silhouette. Retainer bolt on crankshaft won't turn!


#1

I can take a picture if needed. But basically the bolt just won’t turn no matter what I try. I even tried with an impact drill and nothing works. The bolt doesn’t have any rust or oil on it so I have no idea why it’s just so stuck. Any advice? Anything I’m missing?

Also sorry, fairly new to cars and home repairs so forgive me if I missed any vital info. Doing this from my phone in the sun so hard to see. Thanks!

Also, I’m just using the words that the guy at autozone told me. I have no idea what Everything is called, I only know how to fix it.


#2

Would you narrow own the “bolt” in question? Is it the crankshaft harmonic balancer bolt? I think the torque spec on that is only 79 ft-lbs but the bolt likely has LocTite or other thread lock compound on it.

A 1/2 inch air operated impact wrench will usually spin them off after a bit of trigger-action. Or a long breaker bar, or maybe one with a pipe on it. It is tough to get it to break free.

Dumb question - you are turning it counterclockwise right?


#3

It may require an impact gun to remove the bolt.

Tester


#4

Yeah that’s the bolt exactly! And yes turning it counter-clockwise. So just keep trying basically and maybe get an impact wrench?

Just wanted to make sure it was ridiculously hard to get out and nothing that I missed. Heard it was a tough one to get out but never knew it would be this tough.


#5

Why are you taking it off?


#6

Again don’t know the exact words for every thing so bear with me.

The rubber holding the part that holds the belt on went bad and fell off so I need to replace the whole piece.


#7

Yep, that’s the ‘harmonic balancer’. Just wondered, not a commonly-needed repair.