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Accessory Belt Condition

yellow_2002_germany

Well-known member
Joined
Dec 9, 2002
Messages
801
Location
Kokomo, Indiana
Corvette
2006 Velocity Yellow
I replaced my power steering accessory belt tensioner today due to squeaking (one of the easiest repairs I have ever made-it literally took 10 minutes). At the same time I replaced the belt as cheap insurance. Afterwards I took a look at the belt I took off of my car. I could not believe how good of shape it was in after 46,000 miles! It didn't have any cracks, glazing or dry rot or any other indicators of being worn.

How long are these belts supposed to be good for?

Given the shape the belt I took off, I imagine it could have lasted thousands of miles more. However $26 is cheap insurance in my mind.
 
T

ToolGuy

Guest
In my experience around 50,000 miles, give or take. Normally they get glazed before cracking...
 

Bluemill

Well-known member
Joined
Jul 20, 2005
Messages
106
Location
Scituate, MA
Corvette
2000 Navy targa
My squeeking sounded like metal to metal.

On the advice of this website I just replaced the belt first to see if that would do it, even though I was sure that was a bad alternator, water pump bearing or something- it really sounded like metal to metal. This is at less than 25,000 miles. I went to the Zone and got a Goodyear gatorback belt and poppped it on. Not a squeek since, and I've got 38,000 on her now.
 

Bob25thTA

Active member
Joined
Dec 25, 2002
Messages
26
Location
DFW
Corvette
2003 Quicksilver MN6
Here is a GM Service Bulletin, which explains why your belt looked so good.

Information on Serpentine Belt Wear #04-06-01-013 - (Apr 29, 2004)
Information on Serpentine Belt Wear
2004 and Prior Passenger Cars and Trucks
2003-2004 and Prior HUMMER H2
All current GM vehicles designed and manufactured in North America were assembled with serpentine belts that are made with an EPDM material and should last the life of the vehicle. It is extremely rare to observe any cracks in EPDM belts and it is not expected that they will require maintenance before 10 years or 240,000 km (150,000 mi) of use.
Older style belts, which were manufactured with a chloroprene compound, may exhibit cracks depending on age. However, the onset of cracking typically signals that the belt is only about halfway through its usable life.
A good rule of thumb for chloroprene-based belts is that if cracks are observed 3 mm (1/8 in) apart, ALL AROUND THE BELT, the belt may be reaching the end of its serviceable life and should be considered a candidate for changing. Small cracks spaced at greater intervals should not be considered as indicative that the belt needs changing.
Any belt that exhibits chunking should be replaced.
 

Jistari

Well-known member
Joined
Aug 30, 2006
Messages
254
Location
New York
Corvette
2001 Black on Black A4 Coupe
I do realize it says "and prior" but....how prior? 2001's have the indestructable belts?
(that is pretty amazing, 10 years on a belt....what will they think of next? :) )
 

LLC5

Well-known member
Joined
Sep 28, 2004
Messages
2,299
Location
Wa.
Corvette
98 black 6spd convert.
I do realize it says "and prior" but....how prior? 2001's have the indestructable belts?
(that is pretty amazing, 10 years on a belt....what will they think of next? :)


How about minimal scheduled maintenance, lifetime fluids, and lifetime fuel filters on '04's on up.
 

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