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Old 04-04-2014, 07:52 PM   #1
Jared91
 
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Crank pulley question / help

Need a question answered, hopeing someone here can help. I'm knee deep in my supercharger install and I have an slp underdrive pulley that I had to take off and replace with the old one. My question is my stock pulley had a metal ring on the back of the pulley and the slp doesn't. Do I need this ring on there ?? I lost the ring for the stock pulley I guess. Since the slp doesn't have one on it I'm guessing it's not needed ?? Anyone know.
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Old 04-04-2014, 09:39 PM   #2
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Ring? Like a washer? Are you talking about your harmonic balancer?


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Old 04-05-2014, 01:52 PM   #3
christianchevell
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well when replacing any harmonic balancer which looks more like a pulley on the ls3 the bolt is garbage once you have torqued it down once. And usually if there is a washer on a balancer its under the bolt........
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Old 04-05-2014, 08:37 PM   #4
JANNETTYRACING

 
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Quote:
Originally Posted by Jared91 View Post
Need a question answered, hopeing someone here can help. I'm knee deep in my supercharger install and I have an slp underdrive pulley that I had to take off and replace with the old one. My question is my stock pulley had a metal ring on the back of the pulley and the slp doesn't. Do I need this ring on there ?? I lost the ring for the stock pulley I guess. Since the slp doesn't have one on it I'm guessing it's not needed ?? Anyone know.
That ring is a Seal to keep oil from creeping between the crank and balancer, it is also a bit of a spacer.

Without it you will slightly change the offset of your pulleys and risk a leak.

Ted.
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Old 04-06-2014, 01:55 AM   #5
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Here is a pic of the washer you are talking about. It is a friction washer with a seal and it is used to help keep the balancer from turning on the crank.
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