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Unread 02-14-2015, 02:50 PM   #1
FredDemara
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5.2 serpentine belt with A/C bypass length

I have a 94 5.2 4wd. The air no longer works, and today I figured it would be a good day to remove the compressor and shorten the belt.

After several calls to jeep dealership and several automotive shops, Napa told me to get as close a measurement as I could, and bring the old belt in.

The belt they gave me part number 25/070834. This is a Napa belt, the micro-v AT series. The belt fit perfectly (84 inches long) and the jeep is having no issues, and running 100% with the shorter belt on. Belt cost about 40 bucks.

Seen the question asked about the shorter belt in a few places, couldn't find an answer. Hope this helps someone else.

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Unread 02-14-2015, 05:44 PM   #2
fishermandave95
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82 1/2in I got a dayco #5060825 it buy passes the a/c
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Unread 02-14-2015, 06:16 PM   #3
jeeepguy
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Wow, deep south and no A/C. Why not just fix it?
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Unread 02-14-2015, 06:18 PM   #4
fishermandave95
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Originally Posted by jeeepguy View Post
Wow, deep south and no A/C. Why not just fix it?
Redneck a/c 55mph and the windows down
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Unread 02-14-2015, 07:14 PM   #5
Cbob4
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Originally Posted by jeeepguy View Post
Wow, deep south and no A/C. Why not just fix it?
We call that 270 air. Want it cooler? 470...
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Unread 02-14-2015, 07:18 PM   #6
FredDemara
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Originally Posted by jeeepguy View Post
Wow, deep south and no A/C. Why not just fix it?
well, I only paid 900 bucks for it...and I use it for my dogs...that usually have their heads sticking out...and it doesn't have a roof.

http://www.youtube.com/watch?v=JiJuHZLijY4
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Unread 02-14-2015, 07:21 PM   #7
FredDemara
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Originally Posted by fishermandave95 View Post
82 1/2in I got a dayco #5060825 it buy passes the a/c
saw that...at 82.5, I had to push the tensinor hard, hard to the right. Was very worried about damaging the bearings in the power steering pump.
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Unread 02-14-2015, 07:52 PM   #8
fishermandave95
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Dint seam to hard on mine when I did It and is how I will be running it when I get back on the road . Ran it under the a/c pully and it all slipped right on
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Unread 02-14-2015, 08:23 PM   #9
FredDemara
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Originally Posted by fishermandave95 View Post
Dint seam to hard on mine when I did It and is how I will be running it when I get back on the road . Ran it under the a/c pully and it all slipped right on
There was a diagram on the radiator support showing the correct routing on mine - was very grateful it lasted 20 years! The 84 inch gave the tensinor about 3/4 inch of room to move back to the rear...so it was under tension. I would say it had about a range of 3 inches from full tension to none, at least that's what I had measured on the old belt I used for reference.

The deflection on the belt at it's longest point (top of alt to crank balancer?) was within spec. If it squeals at all, I'll go shorter.
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