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Correct Serp belt?
http://www.lostjeeps.com/forum/phpBB3/viewtopic.php?f=5&t=69406
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Author:  nissanfrontier [ Sat Jun 30, 2012 12:07 pm ]
Post subject:  Correct Serp belt?

I purchased Oreily's $22 promaster belt wondering if I have issue. Belt seemed tighter not as flexible seemed to run fine but now belt tensioner is jumping around at idle. ALT is pretty much new, one ebay $214 china units maybe 7000 miles.

Author:  papaindigo [ Sat Jun 30, 2012 4:43 pm ]
Post subject:  Re: Correct Serp belt?

I don't know anything about that O'Reilly belt but I suspect if it fit it's ok, nothing wrong with tight. FYI specs on the Gates K061130, which is a good belt, are Effective Length (in) 113.05; Number of Ribs 6; Outside Circumference (in) 113.62; and Top Width (in) .807. Unfortunately I strongly suspect that cheap Chinese piece of XXX you got off eBay has a bad alternator clutch pulley, at least that's the normal cause for a dancing serp belt tensioner although I suppose the same behaviour could be caused by a similarly bad clutch pulley on the AC compressor or viscous heater.

Author:  CATCRD [ Sun Jul 01, 2012 8:22 pm ]
Post subject:  Re: Correct Serp belt?

nissanfrontier wrote:
I purchased Oreily's $22 promaster belt wondering if I have issue. Belt seemed tighter not as flexible seemed to run fine but now belt tensioner is jumping around at idle. ALT is pretty much new, one ebay $214 china units maybe 7000 miles.


What kind of pulley is on the alternator? Can you post a pic or read a brand name off it?

Author:  nissanfrontier [ Mon Jul 02, 2012 11:57 am ]
Post subject:  Re: Correct Serp belt?

Here is alternator

http://www.ebay.com/itm/ALTERNATOR-05-0 ... 33&vxp=mtr

Author:  Sir Sam [ Mon Jul 02, 2012 3:01 pm ]
Post subject:  Re: Correct Serp belt?

Pull the plastic cap off of the pulley. does it say anything underneath it?

Author:  nissanfrontier [ Thu Jul 05, 2012 2:20 pm ]
Post subject:  Re: Correct Serp belt?

No nothing underneath it, does have killer looking torque screw though.

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