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C5 UD pulley install

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Old Jan 15, 2009 | 04:24 PM
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Default C5 UD pulley install

I need figuring out how to do the UD pulley on my C5 vette but cannot find a guide for it.... Don't really want to mess anything up, need help fast!!!
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Old Jan 15, 2009 | 04:29 PM
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Are you planning to do a cam at the same time? It's a fair amount of work for just an underdrive.
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Old Jan 15, 2009 | 04:33 PM
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already have cam in it, just figured it is time to do the UD pulley, bbut can't figure out how to do it.
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Old Jan 15, 2009 | 05:32 PM
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bump...need help
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Old Jan 15, 2009 | 05:56 PM
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Originally Posted by Fasteddiezo6
bump...need help
Ok dude , ,lets see if I can help .

Here is a link for you . It is for a full install with heads & cam , but it will get you through the UD pulley install as well.
It is very detailed so just take your time and you should be alright

http://www.ls1howto.com/index.php?article=1

Thx
Manny@E.C.P
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Old Jan 15, 2009 | 06:09 PM
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that would be it... thank you very much!
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Old Jan 15, 2009 | 06:49 PM
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Originally Posted by Fasteddiezo6
that would be it... thank you very much!
No problem . Good luck with your install and don't forget this part:


Posted in another thread from forum member Vettenuts:

1. Get hub length of ASP (from vendor or someone who has one and can measure, i.e., don't remove to measure) and stock to figure out difference and what the measured value should be.
2. Measure to ensure you have it correctly bottomed.
3. Install old bolt, torque accordingly to 240
4. Pin the crank (I assume you are end on pinning, not the ATI kit)
5. Install new bolt and follow tightening sequence of 37 lb-ft and prescribed rotation

I would do #1 because I don't know where the hub is without seeing it, and if it hung up for some reason and you install the old bolt and torque, without adequate thread engagement you could damage the crank threads.

Manny@E.C.P
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