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Heating up your underdrive pully?

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Old 06-13-2008, 03:17 PM
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Default Heating up your underdrive pully?

Has anyone done this to get it to slide on without using the longer bolt? Will this hurt anything?
Old 06-13-2008, 04:26 PM
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ttt. I'm stuck, and in need of an answer! Thanks
Old 06-13-2008, 06:06 PM
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put it in boiling water. that shouldn't damage it. prolly wont help much either.
Old 06-13-2008, 06:20 PM
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cant a bolt from the hardware work too?
Old 06-13-2008, 06:37 PM
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I put mine in the oven at about 300 degrees. But it was still a pain to put on and it took alot of cranking so it didn't make it any easier. Best bet is an install tool. I used a longer bolt, a locking tool, 2 breaker bars and a 4' cheater pipe. But you run the risk of stripping the threads on the crank with the longer bolt.
Old 06-13-2008, 06:43 PM
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Originally Posted by DaveX
I put mine in the oven at about 300 degrees. But it was still a pain to put on and it took alot of cranking so it didn't make it any easier. Best bet is an install tool. I used a longer bolt, a locking tool, 2 breaker bars and a 4' cheater pipe. But you run the risk of stripping the threads on the crank with the longer bolt.
how can u strip threads with the longer bolt?
Old 06-13-2008, 06:48 PM
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Any interest in this tool: https://ls1tech.com/forums/showthread.php?t=391883?? Seems like it works nicely, I just ordered mine a few days ago.
Old 06-13-2008, 06:52 PM
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Originally Posted by ae13291
how can u strip threads with the longer bolt?
It takes ALOT of force to put the pulley on. If your doing it with a bolt turning in the threads, the threads may give out since the longer bolt is not using the full length of the threads while applying the pressure to install the pulley. The install tool threads all the way in and then has another nut to drive the pulley on. I didn't have this problem but several people have posted that they have. If you use the longer bolt, make sure it's not just engaging 1/4" or so of threads when it makes contact with the pulley. And put oil on the bolt since there will be alot of friction on the threads.
Old 06-13-2008, 07:16 PM
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cant u smack that thing in hard with a mallot??
Old 06-13-2008, 08:41 PM
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Ok, if you don't want to put up a post in a day or two that reads:

A: HELP!! I stripped my crank trying to use my stock bolt to pull on my pulley

B: I am leaking oil out of my mail seal onto my flywheel because I smacked my pulley on with a mallet.

Then buy the correct tool for the job and save yourself the grief and money later on.

https://ls1tech.com/forums/removed-locked-thread-graveyard/391883-new-crank-dampener-installation-tool-pics.html??

Don't try and do it any other way, you're only going to be either very lucky, or very sad.
Old 06-13-2008, 08:43 PM
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i thought you were suppose to freeze the pulley and heat the crank snout with a bottle torch?
Old 06-13-2008, 09:35 PM
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You've got that backwards. Heat makes metal expand, cold makes it shrink.
Old 06-13-2008, 09:58 PM
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Originally Posted by nobreaks254
You've got that backwards. Heat makes metal expand, cold makes it shrink.
Yeah, I was going to say something but I was assuming he was joking
Old 06-13-2008, 10:52 PM
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i didn't know it took a freezer and a torch to work on a car these days. get the tool.....
Old 06-14-2008, 12:10 AM
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I wish I could get it by tommorow! Its the last thing left on my H/C/I/E install!
Old 06-14-2008, 12:26 AM
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okay, if you want to go ***** out, and really, take this advice thinking that it may screw you in the end...twice I have laid my pulley out in the sun for like 1/2 hour. you can also put it in the oven at high 100 degrees.....then slap the pulley onto the crank snout. GET AT LEAST 3-4 threads of the stock bolt wound on BY HAND - count them! Then you probably will be safe to start cranking on it. Best thing to do would be to get the longer bolt or the install tool though.
Old 06-14-2008, 07:47 AM
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Originally Posted by Grimes
okay, if you want to go ***** out, and really, take this advice thinking that it may screw you in the end...
Best disclaimer ever.
Old 06-14-2008, 12:54 PM
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Originally Posted by Coy
Best disclaimer ever.
hahah, thanks.... we're all now waiting for the "how do I helicoil my crank thread" lol.....
Old 06-15-2008, 02:32 PM
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I used the long bolt, no problems here. Didn't have to use an oven either.




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