Installing ASP Crank Pulley
09-11-2002, 02:30 PM
#11
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Re: Installing ASP Crank Pulley
used strapwrench and torquewrench to install mine just hardheaded I guess but I'm not worried about mine coming off in dramatic fashion. whitt1
09-11-2002, 03:49 PM
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Re: Installing ASP Crank Pulley
</font><blockquote><font size="1" face="Verdana, Helvetica, sans-serif">quote:</font><hr /><font size="2" face="Verdana, Helvetica, sans-serif">Originally posted by really slow truck:
<strong>ummm.... you can reuse YOUR factory bolt.
the bolt is made of aluminum. cant remember the exact wording but after you torque it down in there, then loosen it to remove it it gets stretched and shouldnt be reused. the new bolt is like 6 bucks from the dealer...
</strong></font><hr /></blockquote><font size="2" face="Verdana, Helvetica, sans-serif">Your right Bryan, it's called torque to yeild. Meaning that the bolt is stretched to the limits of it's strength. Once removed, and retorqued, the bolt will no longer stretch to the rating it is designed for. You may be able to torque it to the spec, but the bolt is beyond it's design capacities.
Greg
<strong>ummm.... you can reuse YOUR factory bolt.
the bolt is made of aluminum. cant remember the exact wording but after you torque it down in there, then loosen it to remove it it gets stretched and shouldnt be reused. the new bolt is like 6 bucks from the dealer...
</strong></font><hr /></blockquote><font size="2" face="Verdana, Helvetica, sans-serif">Your right Bryan, it's called torque to yeild. Meaning that the bolt is stretched to the limits of it's strength. Once removed, and retorqued, the bolt will no longer stretch to the rating it is designed for. You may be able to torque it to the spec, but the bolt is beyond it's design capacities.
Greg
09-13-2002, 10:02 AM
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Re: Installing ASP Crank Pulley
I used the stock bolt to put the new pulley back on with my impact. Once I had it bottomed out I just backed it back out and threw it in the trash. Then I put the new bolt back in and torqued it down to the 250lb/ft.
09-13-2002, 10:18 AM
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Re: Installing ASP Crank Pulley
</font><blockquote><font size="1" face="Verdana, Helvetica, sans-serif">quote:</font><hr /><font size="2" face="Verdana, Helvetica, sans-serif">Originally posted by AKZ71:
<strong>I used the stock bolt to put the new pulley back on with my impact. Once I had it bottomed out I just backed it back out and threw it in the trash. Then I put the new bolt back in and torqued it down to the 250lb/ft.</strong></font><hr /></blockquote><font size="2" face="Verdana, Helvetica, sans-serif">This is what the majority of people do, and it's what we did when we put my ASP back on my car after the cam swap.
Trevor
<strong>I used the stock bolt to put the new pulley back on with my impact. Once I had it bottomed out I just backed it back out and threw it in the trash. Then I put the new bolt back in and torqued it down to the 250lb/ft.</strong></font><hr /></blockquote><font size="2" face="Verdana, Helvetica, sans-serif">This is what the majority of people do, and it's what we did when we put my ASP back on my car after the cam swap.
Trevor
09-15-2002, 02:48 AM
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Re: Installing ASP Crank Pulley
The bolt is aluminum and you have to torque it to 250 ft. lb.? That thing would snap in two. Like I said according to the article in Chevy High Performance, you can re-use the stock bolt. That it's NOT a torque to yeild bolt. Did anyone else read this article? Or am I reading it wrong? This was on an F-body, so maybe they're different.
09-15-2002, 06:49 PM
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Re: Installing ASP Crank Pulley
</font><blockquote><font size="1" face="Verdana, Helvetica, sans-serif">quote:</font><hr /><font size="2" face="Verdana, Helvetica, sans-serif">Originally posted by Slammed'99:
<strong>The bolt is aluminum and you have to torque it to 250 ft. lb.? That thing would snap in two. </strong></font><hr /></blockquote><font size="2" face="Verdana, Helvetica, sans-serif"><img border="0" title="" alt="[Roll Eyes]" src="images/icons/rolleyes.gif" /> have you ever installed an underdrive pulley on an ls1 or even removed yours? i'm not sure if you were trying to say the bolt isnt aluminum or that you dont torque it to 250ft-lbs, but it doesnt really matter. both statements would be wrong. I'm not saying that you COULDN'T reuse the factory bolt, just that its not advised.
if you really have that much doubt over this you could always call one of the sponsors and ask them what they think about it. You could also call ASP, unless you would rather trust your chevy high performance mag over the people who build the pulley
not trying to be a dick or anything here, but when you post something like this someone may come along later and read this post and actually think what you said was true
Bryan
<strong>The bolt is aluminum and you have to torque it to 250 ft. lb.? That thing would snap in two. </strong></font><hr /></blockquote><font size="2" face="Verdana, Helvetica, sans-serif"><img border="0" title="" alt="[Roll Eyes]" src="images/icons/rolleyes.gif" /> have you ever installed an underdrive pulley on an ls1 or even removed yours? i'm not sure if you were trying to say the bolt isnt aluminum or that you dont torque it to 250ft-lbs, but it doesnt really matter. both statements would be wrong. I'm not saying that you COULDN'T reuse the factory bolt, just that its not advised.
if you really have that much doubt over this you could always call one of the sponsors and ask them what they think about it. You could also call ASP, unless you would rather trust your chevy high performance mag over the people who build the pulley
not trying to be a dick or anything here, but when you post something like this someone may come along later and read this post and actually think what you said was true
Bryan
09-16-2002, 09:22 AM
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Re: Installing ASP Crank Pulley
I'm just saying what the mag stated. I'm sure ASP isn't going to let a mag print some fictional information about their product. If they did, I'm sure CHP would end up in a heap of trouble. After all, all those tech right-ups are just a big advertisement for the company anyway.
I just re-read it. It is stated that Derek Real and Mike Morgan of Morgan Motorsports, both say the the bolt is not a torque to yield bolt and it does not have to be replace everytime. So yes I would believe these guys and CHP over you <img border="0" title="" alt="[Smile]" src="gr_stretch.gif" /> .
<small>[ September 16, 2002, 09:30 AM: Message edited by: Slammed'99 ]</small>
I just re-read it. It is stated that Derek Real and Mike Morgan of Morgan Motorsports, both say the the bolt is not a torque to yield bolt and it does not have to be replace everytime. So yes I would believe these guys and CHP over you <img border="0" title="" alt="[Smile]" src="gr_stretch.gif" /> .
<small>[ September 16, 2002, 09:30 AM: Message edited by: Slammed'99 ]</small>
09-16-2002, 10:35 AM
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Re: Installing ASP Crank Pulley
Oh yeah, and I just called a buddy who works on LS-1's for a living. He put a magnent on a factory bolt, and it stuck. So it's not aluminum, <img border="0" title="" alt="[Smile]" src="gr_stretch.gif" /> . Which is why I though it was quite strange that an alluminum bolt to hold that kind torque setting.
09-16-2002, 01:14 PM
#20
Re: Installing ASP Crank Pulley
Lets see... The crank pulley bolt part #12557840 lists for $3.68 from the dealer parts department. At that price, does it really matter what its made of? It does have some sort of substance on the inner head of the bolt that might be a "one time use" stuff. If you have time to get a new one, replace it.