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Old Oct 5, 2008 | 04:07 PM
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Default Underdrive Pulleys

Hey guys I was wondering if anyone heard anything bad about these. My friend had a celica and I think it messed his car up. Anyone who has these had any problems with them or engine problems? Thanks!
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Old Oct 5, 2008 | 04:11 PM
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Originally Posted by Subninja
Hey guys I was wondering if anyone heard anything bad about these. My friend had a celica and I think it messed his car up. Anyone who has these had any problems with them or engine problems? Thanks!

search and you shall find.
Attached Thumbnails Underdrive Pulleys-picture-1.png  
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Old Oct 5, 2008 | 05:45 PM
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There were some rumors posted in the past (regarding engine failure) but no definitive proof was ever presented. Lots of discussion here on the subject of dampening vs none.

There was a problem a while back with the KJR pullies and some other cheap knockoffs that caused premature wear at the front crank seal causing a minor oil leak. The UR pullies come with a stainless steel shaft sleeve that prevents the wear and leakage.

Last edited by DavesZ#3; Oct 6, 2008 at 03:11 AM.
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Old Oct 5, 2008 | 07:16 PM
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No issue here. How did it mess it up?
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Old Oct 5, 2008 | 07:39 PM
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In 2004 when performance mods were limited for the 350Z, pullies were popular. Like grounding wires, they have fallen out of favor.

Please use search.
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Old Oct 5, 2008 | 07:42 PM
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I've had a set of UR pulleys on mine for over a year now, no problems.
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Old Oct 6, 2008 | 06:51 AM
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^ same here, no problems
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Old Oct 18, 2008 | 02:22 PM
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UR pullies on for 45k miles & no problems.......
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Old Oct 18, 2008 | 02:34 PM
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I ran the UR pulley set until I went FI and no problems what so ever. I would do it over again also.


oh and +5 million on searching to find these answers.
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