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Old Nov 4, 2005 | 07:16 PM
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Default Please! please! chime in, am I FU$#%#

March pulley is not fully seated. Bolt threads in fine (longer bolt) but at about 180 ft lbs it breaks free WTF! Please tell me I dont need to pull the crank.

Last edited by Tranzaman00; Nov 4, 2005 at 07:47 PM.
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Old Nov 4, 2005 | 07:52 PM
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Confused, your last post stated you got it to about 240 ft/lbs. Now you say 180 ft/lbs and then it breaks free. I have never done one of these but just following the thread to learn.

To me it does not sound good from reading other posts similar to this.

Sorry I could not be any help but do a search as I know others have run across this also.
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Old Nov 4, 2005 | 08:04 PM
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sorry bout the 240 thing in the last thread I got that damn number stuck in my head.
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Old Nov 4, 2005 | 08:06 PM
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Look at this post. Looks just like what you are talking about.

https://ls1tech.com/forums/showthrea...ght=crank+bolt


-Tom
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Old Nov 4, 2005 | 08:23 PM
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That doesn't at all look like what he's talking about to me. It sounds like he may have stripped it when he says it breaks free.
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Old Nov 4, 2005 | 10:05 PM
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Originally Posted by LSUxBlake
That doesn't at all look like what he's talking about to me. It sounds like he may have stripped it when he says it breaks free.
I appreciate the guys help but that wasn't close. Stripped it now
thats exactlly what Im talking about. Breaks free at about 180 or so everytime. Im thinking about getting some all thread rod to use all the threads in the snout and using that to seat it on the rest of the way. 618hawk makes a tool. Then Im gonna grab a more threaded and even longer bolt to hold it on. Torque that to 37 ft lbs and an extra 120* lots of lock tight.
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Old Nov 4, 2005 | 10:40 PM
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I can not for the life of me understand how people can mess up putting on the crank pulley. i've put literally over a hundred pulleys on and never had a problem.
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Old Nov 4, 2005 | 11:16 PM
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Originally Posted by SUX2BU
I can not for the life of me understand how people can mess up putting on the crank pulley. i've put literally over a hundred pulleys on and never had a problem.
Thanks for you help oh pulley master
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Old Nov 4, 2005 | 11:17 PM
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Like I said the bolt was not cross threaded. It threads in fine and still does it just breaks free at 180 lbs. I don't know what might have been done to the car before me!
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Old Nov 4, 2005 | 11:20 PM
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If the pulley isn't fully seated, then maybe once you reach 180ft-lbs the pulley slides on more?
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Old Nov 4, 2005 | 11:22 PM
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The bolt totally breaks free. un screw it and there is one perfect un broke ring of thread wrapped around the end of the bolt.
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Old Nov 4, 2005 | 11:26 PM
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That's bad news. Sounds like the threads in the crank snout gave up.
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Old Nov 4, 2005 | 11:28 PM
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How can it break free by having just one bad thread?
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Old Nov 4, 2005 | 11:28 PM
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yep a couple must have. but im thinking if I can get passed those threads with an all thread rod installer then it might work to seat it the rest of the way on. Once it's seated then the bolt itself is only torqued to 37 lbs plus 120* turn so thats probably not to close to my 180 lb mark were it breaks free, you dig?
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Old Nov 4, 2005 | 11:30 PM
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Originally Posted by LS69TA
How can it break free by having just one bad thread?
I don't under stand it guys! The damn bolt feel solid as hell for mutiple turns I mean smooth solid turns no binding and the bam breaks loose.
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Old Nov 4, 2005 | 11:33 PM
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They're all bad. It's an illusion. Just because the bolt won't pull straight out by hand doesn't mean the threads are OK. It's very common that threads "flatten" a bit and won't handle the torque.
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Old Nov 4, 2005 | 11:34 PM
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What do you suggest? Stroker time?
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Old Nov 4, 2005 | 11:44 PM
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personally i would try to helicoil it bofore i pull the motor.
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Old Nov 4, 2005 | 11:47 PM
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Originally Posted by SUX2BU
personally i would try to helicoil it bofore i pull the motor.
Do they make that size? arent they stanless steel? can you get harder ones? Do you know where I might find one? Sorry so many ?'s
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Old Nov 4, 2005 | 11:49 PM
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sorry can't help you there. it was just an idea. don't kow where to get them or what sizes they make.
You might also try a tap.
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