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Tips on breaking loose the balancer bolt?

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Old Jun 9, 2008 | 12:31 PM
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Default Tips on breaking loose the balancer bolt?

Man I have been through the ringer on this one...in addition to special ordering a new return hose (the old one had about 100lbs of torque on it and sheered off even with a MAC line wrench) I CANNOT seem to get the flywheel secure enough to crank on that blasted bolt. How do you all hold the flywheel steady? Any suggestions? I saw the tool (Kent Moore J 42386-A ) and that blasted thing is a 100 bucks. Is there anybody who has a good technique?

I was considering some sort of way to hold the driveshaft securely, say a long open ended wrench around one of the bolts and then lean against the shaft. I am scared stiff about breaking a tooth off that flexplate (its an automatic).


Thanks in advance,
Cassidy
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Old Jun 9, 2008 | 12:51 PM
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get a buddy to press the brakes while you have a breaker bar on that. that was the only i could break mine loose.
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Old Jun 9, 2008 | 01:00 PM
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If you're planning on changing your hermanic balancer and throwing the old one away put a pipe wrench on that sucker, it will cut small grove into balancer but so what, thats how I got mine off.
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Old Jun 9, 2008 | 01:04 PM
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Are you a A4 or M6?
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Old Jun 9, 2008 | 01:08 PM
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Originally Posted by C4B4the04
Man I have been through the ringer on this one...in addition to special ordering a new return hose (the old one had about 100lbs of torque on it and sheered off even with a MAC line wrench) I CANNOT seem to get the flywheel secure enough to crank on that blasted bolt. How do you all hold the flywheel steady? Any suggestions? I saw the tool (Kent Moore J 42386-A ) and that blasted thing is a 100 bucks. Is there anybody who has a good technique?

I was considering some sort of way to hold the driveshaft securely, say a long open ended wrench around one of the bolts and then lean against the shaft. I am scared stiff about breaking a tooth off that flexplate (its an automatic).


Thanks in advance,
Cassidy
There is a special tool to lock the flywheel. You pull out starter and this grabs and locks flywheel.

BTW, I have all of the tools. Are you in a hurry ?? My bro who lives in the same town as you is coming up this weekend and I could send him back with everything you need to do the job.

Tony
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Old Jun 9, 2008 | 01:11 PM
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sorry dup.

Last edited by MikeV; Jun 9, 2008 at 01:14 PM.
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Old Jun 9, 2008 | 01:12 PM
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I am going to change heads so I plan on pulling one head and wrapping a piece of 2x4 in a rag then temporarily reinstalling the head. If your not, you could open the slot for the flex plate bolts and using a long breaker bar with a socket, hole one bolt at about the 2 o'clock position and hold it against the the shaft to stop it from turning. You will probably need at least a 24" breaker bar.

Good Luck.

Mike V
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Old Jun 9, 2008 | 01:15 PM
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Originally Posted by MikeV
I am going to change heads so I plan on pulling one head and wrapping a piece of 2x4 in a rag then temporarily reinstalling the head. If your not, you could open the slot for the flex plate bolts and using a long breaker bar with a socket, hole one bolt and hold it against the the shaft to stop it from turning. You will probably need at least a 24" breaker bar.

Good Luck.

Mike V
I dont really recomend this, I can see how it would work, But with those hyper. pistons Its really your call.. My machinist broke one of mine when he was trying to press the piston wrist pin off the rod..

Id recomend the holder tool, or using the brakes
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Old Jun 9, 2008 | 01:25 PM
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Originally Posted by ajg1915
There is a special tool to lock the flywheel. You pull out starter and this grabs and locks flywheel.

BTW, I have all of the tools. Are you in a hurry ?? My bro who lives in the same town as you is coming up this weekend and I could send him back with everything you need to do the job.

Tony

Tony, was nice enough to borrow me the tools needed to do the job as well....real stand up guy

Unless you use the special tool you are risking damaging something. BTW when you put the new one on first you are going to need to use the old one and torque it to 250 lb ft. So if you do manage to get it off with someother scheme just remember you have to put it back on as well.

Use the tool, save a potential headache.
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Old Jun 9, 2008 | 01:31 PM
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Originally Posted by verano29
Tony, was nice enough to borrow me the tools needed to do the job as well....real stand up guy

Unless you use the special tool you are risking damaging something. BTW when you put the new one on first you are going to need to use the old one and torque it to 250 lb ft. So if you do manage to get it off with someother scheme just remember you have to put it back on as well.

Use the tool, save a potential headache.
Thanks Mike,

How's the differential and torque converter coming along ??
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Old Jun 9, 2008 | 03:04 PM
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you could always use a long breaker bar and prop it up against something strong in you engine bay and bump the car over :smiley:
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Old Jun 9, 2008 | 03:55 PM
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There used to be a path somewhere on here for drawings to make a simple damper holder, it rested on the front frame and prevented the damper from rotating. I made one and it worked well. If you go to getmetools and choose Schley # 62800 you will see a $60 tool that loosely resembles the homemade version.
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Old Jun 9, 2008 | 04:02 PM
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Originally Posted by MikeV
I am going to change heads so I plan on pulling one head and wrapping a piece of 2x4 in a rag then temporarily reinstalling the head. If your not, you could open the slot for the flex plate bolts and using a long breaker bar with a socket, hole one bolt at about the 2 o'clock position and hold it against the the shaft to stop it from turning. You will probably need at least a 24" breaker bar.

Good Luck.

Mike V
I used the NEW CLEAN SHOP CLOTH IN A Cylinder method as I was replacing the heads at the same time

No problems.

THe real pain was removing the pilot bearing. Had to make my own tool for that one...
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Old Jun 10, 2008 | 12:09 AM
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1/2" impact is a lot easier.
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Old Jun 10, 2008 | 12:30 AM
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Hi C4B4the04 -

You need a twin-hammer impact wrench and a good 6-point impact socket.

If that does not remove it, it will break it off and you'll be back to drilling and easy-outs.

best regards -

mqqn
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Old Jun 10, 2008 | 01:02 AM
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Heat with a torch will make the biggest difference in the world..
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Old Jun 10, 2008 | 01:07 AM
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Originally Posted by FRCTony
1/2" impact is a lot easier.
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To Tips on breaking loose the balancer bolt?

Old Jun 10, 2008 | 07:08 AM
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Allright,

I found that the tool GM uses is 135 bucks and they wanted to hit me with a rush shipping charge of 35. For 170 I got creative at home instead

I used some 1/4 inch sheet aluminum I had and made a bracket that bolted onto two of the flexplate bolts. It worked great. Held everything just as still as the tool and I was able to get that bolt free with a 36 inch breaker and a piece of pipe wrapped around it. Took me a while to get the 140 degrees back on it (for those of you that have not put one on, you have to torque it to something like 37 ft. pounds and THEN index it to 140 degrees of rotation afterwards. That is quite a bit of pressure but I did get it).

My question to you that have done the crank pin, how hard was your pin to press in? Mine literally fell in, the outside diameter was .248 and I drilled a .25 hole. I just pushed and then tapped it with a drift to get it to go all the way in. The hole needed to be .75 deep and I drilled a .85 deep hole before I knew it. There was not much friction as I inserted the pin. Is that going to be a problem?

Thanks for the advice and the offer on the tools. Necessity is the inventor sometimes

Cassidy
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Old Jun 10, 2008 | 08:22 AM
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Originally Posted by C4B4the04
Allright,

I found that the tool GM uses is 135 bucks and they wanted to hit me with a rush shipping charge of 35. For 170 I got creative at home instead

I used some 1/4 inch sheet aluminum I had and made a bracket that bolted onto two of the flexplate bolts. It worked great. Held everything just as still as the tool and I was able to get that bolt free with a 36 inch breaker and a piece of pipe wrapped around it. Took me a while to get the 140 degrees back on it (for those of you that have not put one on, you have to torque it to something like 37 ft. pounds and THEN index it to 140 degrees of rotation afterwards. That is quite a bit of pressure but I did get it).

My question to you that have done the crank pin, how hard was your pin to press in? Mine literally fell in, the outside diameter was .248 and I drilled a .25 hole. I just pushed and then tapped it with a drift to get it to go all the way in. The hole needed to be .75 deep and I drilled a .85 deep hole before I knew it. There was not much friction as I inserted the pin. Is that going to be a problem?

Thanks for the advice and the offer on the tools. Necessity is the inventor sometimes

Cassidy
I would presume that the crank pin would not be excessively tight, similar to a key way, as it is just suppose to stop the balancer from moving.
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Old Jun 10, 2008 | 08:31 AM
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Originally Posted by Dan_the_C5_Man


I would think he has to hold it when tightening too, how did you guys get a good even 75 ft lb of torque in the appropriate pattern with that method?

Last edited by dmiz0420; Jun 10, 2008 at 08:33 AM.
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