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Old 06-13-2011, 12:05 PM   #1
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Fan belt without the A/C

anybody, have or are running with a shorter fan belt bypassing the a/c compressor?
I thought I read somewhere on here that 99" belt would work. I just tried it on mine and 99" is to long and there looks to be some clearance issues rigged the same as the other belt that go around the a/c.
Is there a drawing of belt on without going around the a/c compressor
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Old 06-13-2011, 12:17 PM   #2
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If you still have the 99" belt try putting it back on then pinch off the excess and mark both spots where the belt meets, take the belt off and measure how much the excess is and get a belt that matches the short measurement. Don't be surprised if you have to get more than one or two belts before you find one that you are happy with the fit.

Let the parts store know what you are doing so you'll know that 1:they will take the unused belts back, 2: they may have a different system for measuring, 3: they may already know the size belt you need.
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Old 06-13-2011, 01:52 PM   #3
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3: they may already know the size belt you need.
John, That's highly unlikely since the Workhorse belt routing is proprietary and it was never designed to be run w/o a compressor.

I do agree that you should state your case to the parts guy. They should take the belts back it they don't fit.
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Old 06-13-2011, 03:35 PM   #4
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Quote:
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If you still have the 99" belt try putting it back on then pinch off the excess and mark both spots where the belt meets, take the belt off and measure how much the excess is and get a belt that matches the short measurement. Don't be surprised if you have to get more than one or two belts before you find one that you are happy with the fit.

Let the parts store know what you are doing so you'll know that 1:they will take the unused belts back, 2: they may have a different system for measuring, 3: they may already know the size belt you need.
Looks like an added idler may be needed.
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Old 06-13-2011, 03:42 PM   #5
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Looks like an added idler may be needed.
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Hey Marty! Nice find!

Would still rather not run without an A/C. Buying an idler ILO a compressor has got to be a difficult decision and even more so a long term commitment to running w/o air.

I have not see a motorhome w/o an air conditioning compressor but I will ammend my remarks from post #3 to "it was never designed (intended) to be run w/o a compressor in a motorhome application."
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Old 06-13-2011, 04:06 PM   #6
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Why bypass the A/C?

if you are concerned about the effect on MPG.. You can just unplug the compressor's electrical lead.. That turns into an idler.. Unless of course the bearing has seized. (Happened on my towed, at around 180,000 miles)
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Old 06-14-2011, 04:54 AM   #7
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the clutch is making lots of noise, I have already replaced one compressor because of the clutch. I would have liked to carry one with me that I can reroute. It makes noise whether the compressor is operating or not. I tried to pull it one but I cain,t see the front, I would have to have a special puller that will fit inside 4 inches.
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Old 06-16-2011, 12:34 AM   #8
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Originally Posted by ron55 View Post
the clutch is making lots of noise, I have already replaced one compressor because of the clutch. I would have liked to carry one with me that I can reroute. It makes noise whether the compressor is operating or not. I tried to pull it one but I cain,t see the front, I would have to have a special puller that will fit inside 4 inches.
i was under my moho today and measured the angle between the top idler and the power steering pump.
i believe that you could install a shorter serpentine belt from the alternator, over the top of the existing idler connecting to the power steering pump pulley. you might need a new grooved idler pulley of similar size. it looks the new configuration would clear the water pump pulley by about 1/2''.
if you do try this, please keep me informed as to the belt length and part number for the grooved pulley as i am interested in doing this also.
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Old 06-22-2011, 10:45 AM   #9
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I wonder if Dal-L's idea is good for a short distance drive?

I' d keep a 2nd "short" spare belt as well. Just for the off chance of a compressor's bearings seizure. In that event, you are dead-in-the-road ! She's not moving an foot... Has happened to me in 42 years of auto driving some 3-4 times in the hot summertime.

Hope to never have to call for a tow truck if I have a spare short belt on hand. I believe Coach Net will send a service guy to help me get-er-done and road-worthy in short time until I can limp homeward for a/c repair [where I can negotiate better w/o duress].

This has been on my to-do list. Let us know if come up with a length.
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Old 06-22-2011, 11:04 AM   #10
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Just found this item:
8.1L Air Conditioning Compressor Bypass Pulley: This Bypass pulley bolts on to your engine in the same location as your malfunctioning Air Conditioning compresssor, allowing you to use your original serpentine belt.

Source:" http://www.dealsonwheels.com/partsandaccessories/detail.aspx?id=3302902&pn=1AEPM00026&cid=788"
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Old 06-22-2011, 02:09 PM   #11
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the belt to by the air conditioner is DAYCO 5060955 from auto zone.
now you have to run it on top lof the idler pully above the fan pully with the 6 v side down the wrong way on this one idler. I test ran it and it seem ok at least it will get you somewhere for a new compressor.
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Old 06-22-2011, 03:29 PM   #12
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Quote:
Originally Posted by 62Morgan View Post
Just found this item:
8.1L Air Conditioning Compressor Bypass Pulley: This Bypass pulley bolts on to your engine in the same location as your malfunctioning Air Conditioning compresssor, allowing you to use your original serpentine belt.

Source:" http://www.dealsonwheels.com/partsandaccessories/detail.aspx?id=3302902&pn=1AEPM00026&cid=788"
that url doesn't work.
the part number 1aepm00026 does work when googled.
cost is $43.95. imho the ac compressor would have to be removed to install it, not something i would want to do while on the road.
thanks for this info.
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Old 06-23-2011, 03:36 AM   #13
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here is more info and part numbers for using an alternate serpentine belt configuration to avoid a failed air conditioning compressor pulley.
my parts guru at cost-less auto parts in the 'couv researched some parts for me today.

if one wanted to remove the ac compressor, dorman makes a bracket and pulley assembly pn 34174, $35, for this purpose. it is a common stock item at cost-less. the compressor must fail a lot.

i don't want to go there (yet), so i went with the shorter belt that ron 55 recommended and tested, dayco 5060955.

many thanks to ron 55 for the part number and testing the short belt configuration, pn 5060955.

when using this shorter belt, the center idler pulley would have the grooved side of the belt riding on the smooth idler pulley. it would probably ''walk off'' the smooth pulley. to avoid this, i purchased a grooved idler pulley of similar diameter, offset, and bearing bolt size to replace the smooth center idler, goodyear pn 49021.

i am now set up so that if the ac compressor clutch or bearing fails, i can (easily?) replace the belt and idler pulley and have a semi-permanent installation until i decide to either replace the air conditioning compressor component that failed or install the replacement dorman idler bracket and pulley assembly for a permanent installation.
all of these parts are regular stock parts at cost-less auto parts.
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Old 06-23-2011, 06:29 AM   #14
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... all of these parts are regular stock parts at cost-less auto parts.
DAN L, It's better to have a plan in the event of an emergency rather than no plan at all.

Good job in presenting this information and the solution.
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