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Old 11-24-2013, 12:24 PM   #1
e6bill
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Accessory drive belt fraying

I've been a lurker here for quite awhile, but never had much to say.

My daughter's ZX5 has an issue with the belt fraying and de-laminating on the engine side of the belt. I just replaced 2 of 3 engine/trans mounts and it does have a slight PS fluid leak.

Has anyone else had an issue similar to this? Anything down low that might rub on the belt? I've replaced the belt 3 times since 2008 due to this. Any pointers?

Thanks,

Bill


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Old 11-24-2013, 12:50 PM   #2
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Quality belts (Gates, Dayco) or cheap-o ones?

Has the tensioner assy. ever been replaced?


Belt tension is the key here IMO. Too tight or too loose and the belt will either ride too deep or slip. Both will reduce the life of the belt.

Also look for burrs on the pulleys. Lets say she ran something over and marred a crank pulley. That would, over time, ware on the belt and reduce it's life.
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Old 11-24-2013, 02:41 PM   #3
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If the crank pulley were jacked up, wouldn't the belt shield be jacked up also? It's still in place and intact. I believe I changed the tensioner several years ago, not sure.
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Old 11-24-2013, 04:25 PM   #4
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Make sure non of the pulleys seized-up, the AC compressor, Alternator, water pump, tensioner are not seized. Also when installing the belt are you making sure it is lined-up in all the groves on all the pulleys.
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Old 11-24-2013, 11:36 PM   #5
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As they say, look for like piece of gravel stuck in groove too. Pulley can have concreted dirt impacted in grooves to appear perfect to naked eye until you look close then you realize belt has been held up off bottom of groove to slip and fray. One I saw was almost impossible to clean grooves out, the dirt was like part of the pulley by then.
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Old 11-25-2013, 10:10 AM   #6
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The belt is de-laminating (peeling) on the smooth side and most of the fray seems to be there also. I need to crawl under and look it over good I guess. No room for big hands over there.
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Old 11-25-2013, 10:30 AM   #7
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Smooth side of pulleys must be just that, any nick from rock or other to nick the pulley then starts eating on belt.
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Old 11-25-2013, 12:08 PM   #8
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And delaminating happens from excessive heat. Meaning that a pulley is probably dragging / bearing is bad.
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Old 11-25-2013, 01:54 PM   #9
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Quote:
Originally Posted by e6bill View Post
The belt is de-laminating (peeling) on the smooth side and most of the fray seems to be there also. I need to crawl under and look it over good I guess. No room for big hands over there.
One of your pulleys are rusty or have worn on one side I have the same on the power steering pump pulley so far I am lucky it has not messed-up the belt. When it gets warm I will visit the bone yard and see if I can remove just the pulley.
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Old 11-25-2013, 06:28 PM   #10
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Thanks for the tips. Have to check all those pulleys I guess.
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