Serpentine belt

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Serpentine belt

October 15, 2019, 01:59:02 pm

I have replaced belt tension and belts on this 96 8.3 Cummins..the water pump/alt belt on Beam Alarm calls for a Gates k080605. This belt is to tight and squeaks.. mainly concerned with this killing the alternator bearing.. did a search last night and probably found my answer but can't find it today. Has anyone with 8.3 had a similar issue and if so what Gates belt number is a tad bit longer? Can barely get this belt on,, tad bit to short.

Re: Serpentine belt

Reply #1 – October 15, 2019, 02:35:20 pm

Appreciate that, I hope to find a manual engine to compare... Differences who knows. I'm at orielys and the boy on the computer is not going to be much help.

Re: Serpentine belt

Reply #2 – October 15, 2019, 02:43:43 pm

Dub,

You could always contact Gates with your part number and ask them for their next length up (and find out how much longer it is).

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Re: Serpentine belt

Reply #3 – October 15, 2019, 03:00:37 pm

Did that Bret came up with K080610. Ordered 2 in case it fits. Have to order most things in this town.

Re: Serpentine belt

Reply #4 – October 15, 2019, 03:02:10 pm

You went from 60 1/2 inch to 61 inches.

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Reply #5 – October 15, 2019, 03:05:41 pm

What are the numbers/length on the old belt?

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Reply #6 – October 15, 2019, 03:30:22 pm

original belt numbers were gone Bret.. Orielys contact with Gates claims I went 1/2 in longer with 80610 Crane man

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Reply #7 – October 15, 2019, 03:37:17 pm

Can you compare old and new belt lengths? Is .5" longer enough/correct?

Re: Serpentine belt

Reply #8 – October 15, 2019, 03:59:18 pm

Dub you are correct the Beamalarm part number is to short. I think that 1/2 longer belt is correct. I'm not near the coach right now so can't get the number.

Re: Serpentine belt

Reply #9 – October 15, 2019, 04:10:37 pm

Bret.. old belt was a bit tighter but 2 groves gone. I've replaced total of 3 pulleys so that may have made a bit of difference. I'm leaning with Bruce on the belt difference.

Re: Serpentine belt

Reply #10 – October 15, 2019, 05:18:07 pm

Quote from: Dub – October 15, 2019, 04:10:37 pm

Bret.. old belt was a bit tighter but 2 groves gone. I've replaced total of 3 pulleys so that may have made a bit of difference. I'm leaning with Bruce on the belt difference.

Make sure you have same number of groves as pulleys. I had a bad water pump, not leaking, could not feel looseness in bearing, alignment ok, still caused belt to fray off one groove on belt. Replaced pump, problem solved.

Re: Serpentine belt

Reply #11 – October 15, 2019, 05:21:13 pm

Yes, ALWAYS check each "accessory" for bearing smoothness, lack of play and pulley alignment!

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Reply #12 – October 15, 2019, 05:47:46 pm

Quote from: Dub – October 15, 2019, 03:30:22 pm

original belt numbers were gone Bret.. Orielys contact with Gates claims I went 1/2 in longer with 80610 Crane man

The last 3 numbers in the majority of belts are the first 2 numbers are in inches and the last one is in 10ths.

Re: Serpentine belt

Reply #13 – October 15, 2019, 06:08:30 pm

Next step longer 61.5": K080615 GATES Replacement Serpentine Poly V Belt – V-Belt Guys

Re: Serpentine belt

Reply #14 – October 15, 2019, 06:24:12 pm

Replaced water pump today it had a tiny bit of play but didn't stop the noise.Removed and inspected idler pulley bearing and it was good.. What stopped the noise was a wire brush cleaning of all groves on idler pulley and crank pulley.. Bit of rust dust rose.. shinny now and quiet. A second set of eyes said to stay with the Gates K080605 on this one. Thanks to all who replied.

Re: Serpentine belt

Reply #15 – October 15, 2019, 06:25:11 pm

When you check for alignment, make sure you include vertical alignment as well as using a straight edge for horizontal alignment.

Pierce

Re: Serpentine belt

Reply #16 – October 15, 2019, 06:30:08 pm

10/4

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Reply #17 – October 15, 2019, 08:21:51 pm

Dub, keep in mind mine is a ISC 99. But here are the belt numbers that fit mine. Gates HD K080685 WP ALT. Gates K080465 for hyd pump. I figured all this out beside the road when the spares where wrong. These numbers make the idlers run in the middle of thier tension range. Good luck

Re: Serpentine belt

Reply #18 – October 15, 2019, 08:56:08 pm

10/4 Bruce.. I will put your numbers in notes while I keep an eye on the belts that are on mine.. I did look at the groves in the easier places I could see on the pulleys looking for dirt, oil and such and didn't notice anything obvious. Friend of mine took a wire brush/ wheel and went over the pulley grooves but good and shined them up making everything smooth and quiet. I've had over 30 class 8 diesel trucks and have never seen dirty pullies do like this.. pure wonderment but it does stand to reason.. Sometimes the smallest of chores kick my tail the hardest..

Re: Serpentine belt

Reply #19 – October 15, 2019, 09:03:55 pm

Quote from: Dub – October 15, 2019, 06:24:12 pm

Replaced water pump today it had a tiny bit of play but didn't stop the noise.Removed and inspected idler pulley bearing and it was good.. What stopped the noise was a wire brush cleaning of all groves on idler pulley and crank pulley.. Bit of rust dust rose.. shinny now and quiet. A second set of eyes said to stay with the Gates K080605 on this one. Thanks to all who replied.

I run the Gates K080605 on ours, 3 years and no problems........... 8.3 mechanical

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