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Old 02-21-2010, 10:44 AM
snasby57 snasby57 is offline
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serpentine belt size

Hi all
I have a 1996 ranger 4.0 efi 4x4 my air conditioning compressor is starting to lock up i want to bypass until i have the cash to repair it. my question is what size serpentine belt do i need to bypass the compressor so i can drive the truck.
all help appreciated
steve
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Old 02-21-2010, 11:18 AM
pawpaw pawpaw is online now
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Well if the A/C clutch part is ok, just disconnect it's electrical connector, so the clutch won't try to engage & turn the compressor.
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Old 02-21-2010, 01:26 PM
snasby57 snasby57 is offline
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clutch assy

how do i find out if the clutch is ok? when the engine runs the clutch just tries to turn i see a lot of red powder must be rust around it. the belt whines and do i buy a belt for engine without ac will that fit.
steve
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Old 02-21-2010, 02:23 PM
Rangerman Stan Rangerman Stan is offline
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The air conditioner compressor clutch will engage off and on during an engine warm up cycle, so you could watch for this while it's warming up. Also, if its some what warm outside you could turn on the air conditioner and watch for the clutch to engage. The bearings in the large pulley on the compressor started to come apart on my 91 4.0 and made the engine vibrate and caused a screaching noise. I bypassed the compressor pulley with a belt for an engine without AC and it was all good after that. You should be able to do the same thing.
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Old 02-21-2010, 03:09 PM
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Quote:
Originally Posted by snasby57 View Post
how do i find out if the clutch is ok? when the engine runs the clutch just tries to turn i see a lot of red powder must be rust around it. the belt whines and do i buy a belt for engine without ac will that fit.
steve
Well you said the A/C Compressor was starting to lock up, so with the A/C Off, if the clutch assy & the belt aren't making any noise, then the clutch pully bearing is ok, so just unplug the electrical connector to the clutch, so it won't try to run the A/C compressor.

If the clutch pully bearing is bad, it'll make the noise even if the A/C is off, so disconnecting the A/C clutch electrical connector won't do any good.

Maybe a belt for a 4.0L without A/C will work, but I really don't know, you'll just have to try one & see.
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Old 02-21-2010, 11:54 PM
g_k50 g_k50 is offline
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tie a string around the pulley's that you want to operate, take the string off and measure it.

It's not what I would do but you could try it.

The best course of action is to fix the AC pulley. Don't create another problem by not fixing a problem, it's just not beneficial in the long run.
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Old 02-21-2010, 11:54 PM
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2009, 40, 40l, ac, air, belt, clutch, compressor, conditioning, ford, locks, pulley, ranger, serpentine, size, sizing, vibrate

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