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Crank Pulley Stuck

Joined
May 17, 2012
Messages
19
Location
Aurora, CO
I'm in the process of a complete rebuild. Right as i go to do the balance shaft elimination i find that the bolt on the crank pulley will not break loose. I've soaked it with pb blaster and hit it with my impact... Nothing. Am i missing something? is it reverse threaded? Any suggestions?
 

AWDPower

Well-known member
Joined
Feb 28, 2011
Messages
107
Location
Vacaville, CA
When they are real stuck like that, you need to do it the old fashioned way with a big cheater bar. I use a good 22mm socket, a good 24 inch long 1/2" extension, and a good 1/2" breaker bar. Support the extension with a jack or jack stand, and slip a 4 foot plus pipe over the handle of the breaker bar. Use your favorite method of holding the crank still. I put the tranny in fifth gear and have someone step on the brake. Use good quality tools or you will just break them. I used this method when even a high-end, 800+ ft lb. impact didn't work.
 

Vr4junkie

Well-known member
Joined
Jun 25, 2011
Messages
596
Location
Some wack town in CA
You know what it might be a reverse thread don't remember but I got my crank out in the garage I could go check .
 

ercp98

Well-known member
Joined
Aug 5, 2003
Messages
1,340
Location
northlake in illinois
what worked for me was heating that bolt for a long time with an acetylene torch, then right away hitting it
with an impact wrench.

mine had red thread locker on it.
 
Last edited:

Vr4junkie

Well-known member
Joined
Jun 25, 2011
Messages
596
Location
Some wack town in CA
Another method I use is tighten it to break lose the threads sounds stupid but trust me it's worked for me in the past.
 
Joined
May 17, 2012
Messages
19
Location
Aurora, CO
Thanks for the advice guys. Unfortunately my motor is out of the car and id rather not have to make the tool to hold the crank still so i think i will try torching it first then give it another try. And its not reverse threaded correct?
 

SmoothCustomer

Well-known member
Joined
Jul 6, 2008
Messages
3,319
Location
Lexington, KY
No, not reverse threaded. I'm assuming it's on a stand. You can thread in some flywheel bolts and stick a bar in there to hold the crank still.
 

yeti

Well-known member
Joined
Oct 13, 2010
Messages
803
Location
san diego california
i had a friend hold the flywheel with a breaker bar and socket on one of the bolts, if you can i think i stuck a screw driver threw the flywheel...
 

SouthCaliVR4

Well-known member
Joined
Jul 31, 2010
Messages
984
Location
North county San Diego
Find a bit of flat stock. drill two holes so you can bolt it down in a pair of head bolt locations. now place a large dia socket on the head of the piston so the bar stock will catch & stop the piston. This is known as a piston stop. you can break it loose & not harm the piston, rod or bearings.
 

turbowop

Well-known member
Joined
Apr 29, 2001
Messages
11,971
Location
Yakima, WA
Put a breaker bar on it and rest it on the front suspension arm. Then tap the starter a couple of times.

*edit* I guess if it's out of the car that method won't work.
 
Last edited:

desant78

Well-known member
Joined
Jun 23, 2010
Messages
732
Location
Clarksboro, NJ
I put a solid bar in the crank in a way using two crank pulley bolts that it is putting pressure on the engine stand mount so it cant turn and get a large breaker bar and treat it a lesson.
 

yeti

Well-known member
Joined
Oct 13, 2010
Messages
803
Location
san diego california
Quoting turbowop:
Put a breaker bar on it and rest it on the front suspension arm. Then tap the starter a couple of times.

*edit* I guess if it's out of the car that method won't work.



This was my plan, but the battery was dead so i just pulled motor and had friend hold flywheel bolt
 

mitsuturbo

Well-known member
Joined
Jun 2, 2008
Messages
3,544
Location
Near Seattle, Washington
Pull the oil pan if it's out of the car. Stick a handle in between the crank counterweights and the block. Twist away.

Don't go and do something stupid like only have pressure on ONE of the counterweights, though. Be sure and try to distribute the load across four of them.

Putting a screwdriver thru the flywheel usually buggers up the rear mainseal housing. Be careful about doing what Yeti suggested.
 

mitsuturbo

Well-known member
Joined
Jun 2, 2008
Messages
3,544
Location
Near Seattle, Washington
Quoting desant78:
I put a solid bar in the crank in a way using two crank pulley bolts that it is putting pressure on the engine stand mount so it cant turn and get a large breaker bar and treat it a lesson.



This is also a good method. It's best to use longer bolts and make sure they're threaded pretty deep, so you dont screw up the threads in the ass end of the crankshaft.
 
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