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Old 11-26-2019, 02:13 AM   #15
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You can get a belt for your engine without ac. I had the same thing happen a couple years ago. I spent $2000 a week in a shop and an incomplete repair. You can find info on line.
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Old 11-26-2019, 05:11 AM   #16
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Not sure if this helps you, but here is the Surpentine belt diagram for your Cummins ISC 8.3LClick image for larger version

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Old 11-28-2019, 08:31 PM   #17
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Quote:
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Not sure if this helps you, but here is the Surpentine belt diagram for your Cummins ISC 8.3LAttachment 267938


The AC froze up on me and I had the compressor replaced with a new belt and topped up freon for about $1800. I definitely would not recommend just replacing the bearing in n the pulley. As noted above, the pump could have been damaged from heat build up and/or may die soon any way. Why pay twice to have the thing removed and reinstalled?
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Old 11-30-2019, 11:21 AM   #18
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I had a compressor seize two years ago as we left Quartzsite. My option were to be towed to Flagstaff or bypass the A/C compressor. I took the old belt, routed it around the pullies, bypassing the A/C. I then marled on the old belt with a Sharpie, the length I needed. I went to Napa and bought the two closest belts. I also bought a 24" long, 1/2" breaker bar that I don't normally carry. It's needed to relieve the tension on the belt tensioner.

My coach was a side radiator, once I got the belts figured out, it's pretty easy to install. If I recall, I had to remove an idler pulley to make the new belt work. I reinstalled it once the compressor was replaced. I bought the compressor on Amazon.
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Old 12-01-2019, 01:43 PM   #19
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Figure out your belt routing (if bypassing a pulley) loop a piece of string around the pulleys, tie it off, go to the part store with your example.
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Old 12-01-2019, 02:32 PM   #20
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When we purchased our new Allegro Bus in 2013, it came with two extra belts. One was to replace the original and the other was shorter to eliminate the AC compressor in the event it froze up. I've never had a need for it, but thought it was a nice idea. Maybe your manufacturer has the specs for a belt without a compressor.
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Old 12-02-2019, 06:05 PM   #21
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Hope you had luck finding a belt to bypass with. CAT 330 doesn't have one. Tried 5-6 different belts before being towed from Holbrook to Flagstaff. Same issue A/c locked up. Luckily it locked up as we were leaving the campground in Holbrook. Alot better than being on the side of the road for sure.
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Old 12-02-2019, 09:39 PM   #22
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Weve had this happen twice. First time was in Barstow, CA. Compressor was replaces with a rebuilt unit. Three years later in MN. This time replaced with a new unit from Freightliner. Been three years so hope this one lasts.
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Old 12-03-2019, 01:31 PM   #23
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You all need to realize, if the compressor is turned off and the pulley is locked up, it's not the compressor, it's the bearing inside the pulley.
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Old 12-03-2019, 02:20 PM   #24
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I had the same problem in 2011 and here is my post if you want to commiserate!

http://www.irv2.com/forums/f59/stran...e-97290-2.html

For a ISL, the shorter AC bypass belt is a NAPA 08070. For my 2006 chassis, there is only ONE belt that moves all the pulleys.

Freightliner can email a belt routing diagram if you give them the last six digits of your VIN. Cummins could not help because they sell the raw engine to Freighliner who adds all the components and determines the belt size.
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Old 12-03-2019, 08:44 PM   #25
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I had the same problem in 2011 and here is my post if you want to commiserate!

http://www.irv2.com/forums/f59/stran...e-97290-2.html

For a ISL, the shorter AC bypass belt is a NAPA 08070. For my 2006 chassis, there is only ONE belt that moves all the pulleys.

Freightliner can email a belt routing diagram if you give them the last six digits of your VIN. Cummins could not help because they sell the raw engine to Freighliner who adds all the components and determines the belt size.
Your belt lengths are a lot different than mine. Mine is just over 75" with the A/C compressor.
Is your coach rear radiator?
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