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Old 11-23-2009, 08:14 PM   #1
gatorgabe7
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2002 L-Series 2.2L Sedan
Default Bypass A/C compressor?

I have a 2002 L200 and the serpentine belt snapped on it. We replaced the belt, but we have noticed that the A/C compressor wheel(for lack of a better term) wasn't spinning. I was wondering if anyone had bypassed the compressor and just went with a smaller belt around the crank pulley and the alternator. If so, what size belt was used? I need to do this as a temp fix 'til I can get a new compressor. Thanks.

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Old 11-23-2009, 09:54 PM   #2
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2003 L-Series 3.0L Sedan
Default Re: Bypass A/C compressor?

Look closer; if the engine can run and the new belt turns, the compressor pulley is spinning. You may not see the belt moving over the pulley (mark across the belt with white-out/chalk/nail polish/paint/whatever) so it will contrast against everything as it moves. You should see one part of the compressor (center front portion at a standstill) not turning but the belt moving around the compressor pulley; there's a very large bearing that hardly wears out otherwise no belt will stay on and SCREECH LOUDLY as soon as the engine is started (if the engine will run at all if this pulley were truly seized). Hopefully you won't have to guesstimate a belt replacement and resort to finding a shorter belt.

If the compressor pulley bearing is seized and the belt burns (with no one contributing a definite solution), you'd have the measure the blue line dimension to subtract from the overall belt length in order to arrive at a length short enough to work without a compressor. You'd have most likely less than an inch/25mm as a margin of error; the belt tensioner needs to be in the mid to three quarters of its travel stroke to apply the most tension on the belt to effectively maintain tension.
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File Type: jpg belt drive L200.jpg (108.6 KB, 47 views)

...
*The CPS is the heart of the entire EFI system. No cps = dead EFI system*
*There's more to a/c than just a few cans of refrigerant*
*There's more to brakes than just replacing parts*

Last edited by fdryer; 11-23-2009 at 10:01 PM..

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Old 04-21-2011, 02:57 PM   #3
Av8r
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2001 L-Series 2.2L Sedan
Default Re: Bypass A/C compressor?

I know this is an old thread, but wanted to post the belt length in case someone needed it. My A/C compressor just started going last week, so I decided to bypass it. I used a 35 5/8" size belt and it fit perfectly and the tensioner keeps it nice and tight.

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Old 06-21-2014, 03:04 PM   #4
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Default Re: Bypass A/C compressor?

Thank you for giving us the belt size. I'm going to try this right away. My ac compressor locked up and now I need to bypass it until I really need to repair it.

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