Stuck crank pulley nut

[AustrianVespaGuy]

Any advice on getting the crank pulley nut broken free? I've already let it soak in PB blaster for 36 hours, heated it with a torch, had a friend step on the brake, and put enough torque on it to make the clutch slip, but no looser. Any ideas?

-Carl

[BillWilliams]

get your hands on.

[1972fritz]

impactomatic.. actually by heating it you probably didnt help yourself any.try heating it and using a canning wax or ice block to re cool the head of the bolt and the bolt hopefully the heat will penitrate through the bolt into the crank and actually heat the crank by cooling the expanded bolt you be able to revove it but you will need to work fast

[wagnerf15]

Sucks if you don't have an impact wrench, but that is THE best way, as Bill noted.

[bill.in.mt]

and if you don't have an impact wrench, hit the end of your wrench with a BFH - that's essentially what the impact wrench would be doing, just not as efficiently

[KFunk]

just put a big breaker bar on it, and wedge it securely between the frame rail and the battery tray. I put a brick or 2x4 or something underneath the breaker bar to help hold it solid against the battery tray. Then a quick flip of the key and the starter takes care of it.... i'd make sure nobody is lookin under the hood when you do it though....

[AustrianVespaGuy]

Yeah, I actually tried the starter trick too by putting the end of the breaker bar through the towing eye AND using a puller to hold the socket nice and tightly against the nut. Hit the starter three times and nothing happened. I figured I was able to get more torque on it with a piece of pipe on the end of the breaker bar than the old starter motor could muster, and I was able to get enough torque make the clutch slip, so I'm hesitant about trying the starter trick again; don't want to burn out my starter either. You think I'd be able to cut the nut off with a dremel or something without doing too much damage to the threads?

-Carl

[BillWilliams]

(nt)

[BillWilliams]

don't think you are going to get a dremel in that tight spot

[allbim]

You can rent an impact wrench and a compressor. That's cheaper than wasting a day. The radiator obviously will have to come out. Be sure you use a 6 point socket, so you don't strip the corners off the nut.

Good luck.

[AustrianVespaGuy]

Well, I threw in the towel, put the radiator back in, and took the car to a local shop at lunch that has a 3/4 impact driver. I guess I'll know tomorrow if they'll be able to get it free.

-Carl

[BillWilliams]

Reinstall with anti-seize

[Scott Sislane]

(nt)

[AustrianVespaGuy]

Yep, that did the trick, and I do plan to get a new nut and definitely use anti-seize when I put it all back together. Thanks for the help guys!

-Carl