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KJR Crank Pulley owners be careful

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Old 02-15-2007, 12:15 PM
  #41  
Motormouth
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^he said to email him.

and if anyone comes across the link to teh part number for the steel sleeve for the KJR, i'd appreciate it.
Old 02-15-2007, 12:20 PM
  #42  
teh215
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FYI - UR makes a pulley that is OE diameter for the s/c guys.
Old 02-15-2007, 12:23 PM
  #43  
sentry65
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hmm yeah it is listed on their site:
http://www.unorthodoxracing.com/Merc...de=350zultraSc
Old 06-29-2007, 08:01 PM
  #44  
World Famous Z
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Sorry for the late chime in here guys, i just was reading up on some posts, came accross this, and wanted to let you know that even I have just found an oil seal issue on my Z....
I have the KJR too, but was running it for oh...nearly 2.5 years. I don't know if the leak has been going on for a while or not, but it's pretty bad now. So simple fix early next week will solve it. Just wanted to chime in that it can happen to anyone
Old 06-29-2007, 08:12 PM
  #45  
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What is the simple fix? A steel sleeve? Any info appreciated.
Old 06-29-2007, 10:04 PM
  #46  
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Yeah Tony, what's the fix, the '99189 speedi-sleeve' from Baum Hydraulics?

Or for people who just want to get a full replacement, will this work?
https://my350z.com/forum/showthread....Stock+Diameter

Last edited by hbenet; 06-29-2007 at 10:16 PM.
Old 06-29-2007, 10:38 PM
  #47  
Coz@CZP
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We've had many problems w/ the KJR pulleys, we just replace them w/ UR pulleys and a new crank seal... Result = Best Quality Pulley, No Leaks, No problems, Proven HP Gains, and UR Warranty. Enjoy

Here's the seal, and the pulleys to fix the KJR issue. You can also go back to the stock pulley w/ a new seal to fix the issue.

Seal:
http://http://www.czp.us/cart/description.php?II=1875

UR Stock Sized Pulley:
http://http://www.czp.us/Cart/description.php?II=1321

UR Stock Sized Pulley Kit:
http://www.czp.us/Cart/description.php?II=1323

UR Underdrive Pulley:
http://www.czp.us/Cart/description.php?II=1060

UR Underdrive Pulley Kit:
http://www.czp.us/Cart/description.php?II=1061

Coz

Last edited by Coz@CZP; 06-29-2007 at 11:16 PM.
Old 06-29-2007, 11:04 PM
  #48  
World Famous Z
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simple fix AS IN swapping out the oil seal, etc... and removing the pulley, sorry I did not mean to elude to any other probable fixes for the issue, i just meant that it's a reletively simple thing to fix in general, considering I was expecting worse news with regards to oil loss lol
Old 06-29-2007, 11:49 PM
  #49  
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Just ordered my new stock sized pulleys & crank seal from Coz. I have a 300HP/Rev-up engine, so I hope these will work.

Thanks Coz!
Old 06-30-2007, 11:37 PM
  #50  
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Originally Posted by DavesZ#3
You're the second person to post this same problem in the last year or so. Not necessarily an epidemic but certainly something that everybody needs to check on.
I was one of those people that also had an issue...

Remember this pulley is designed by a kid... he's still in college. Not a engineer.

Thats why I say SCREW this product! It ate my crank and others have had this same issue!! BECAREFUL!!! DO NOT TRUST KJR PRODUCTS!
Old 07-01-2007, 06:40 AM
  #51  
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its funny they havent posted on here in a long time...ive had mine on for about 40k miles with no issues so far and i replaced my belts like 20k miles ago and didnt see any problems then either...regardless to say my next belt change i am installing a set of agency power pulleys i received as a gift
Old 07-10-2007, 09:46 PM
  #52  
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Well, I have Pm'd KJR to no avail... No reply. Oh well, it's all over now, car's fixed.
here are some pics of the KJR pulley when it came off, you can see there are two areas where it was being cut into...


Old 07-11-2007, 08:04 AM
  #53  
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So Tony, did you end up swapping the pulley for the Unorthodox Racing one? Or just added the steel sleeve?
Old 07-11-2007, 09:12 AM
  #54  
gsazabi
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Tony's pulley looks EXACTLY like how mine did when I pulled it out.
I say go with UR and never worry about it again. That's what I'm doing.
Old 07-11-2007, 10:44 AM
  #55  
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Originally Posted by gsazabi
Tony's pulley looks EXACTLY like how mine did when I pulled it out.
I say go with UR and never worry about it again. That's what I'm doing.
Yeap, that's exactly what I'm doing too. As a matter of fact, I just received my UR pulleys.
Old 07-11-2007, 10:49 AM
  #56  
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UR squeaks.

buy a 20 dollar speedi sleeve and put it on the KJR, that is basically what the difference between the UR and KJR is.
Old 07-11-2007, 10:58 AM
  #57  
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Originally Posted by Motormouth
UR squeaks.

buy a 20 dollar speedi sleeve
A what?
Old 07-11-2007, 04:38 PM
  #58  
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I didn't bother going with a new pulley, so i just put the OE one back on. 1) i need the car back quickly, 2) now that I drive with the OE on there, it's not a real noticeable difference in my car with the blower n e ways....

I'm happy that the OE will not have the issue.

But I'll keep trying to contact KJR for everyone on here too...
Old 07-11-2007, 09:19 PM
  #59  
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again... DO NOT BUY KJR PRODUCTS!!! THEY ARE MADE BY A COLLEGE STUDENT WITH NO FUTURE OR INTELLIGENCE WITH ENGINEERING!... Hell he hasn't had a working Z for about two years. He cares less about customers or anything you might need help with...

Horrible company and 0 customer service!
Old 07-12-2007, 03:51 PM
  #60  
MyV6IsFast3r
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Here ya go. Steel sleeve info with links and full write up.

http://www.infinitifx.org/phpBB2/vie...=asc&&start=75


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