T5/T7 AC compressor bypass. Short belt info. - Page 3 - The Saab Link Forums

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Car Problems? NG900 or old 9-3 Only If you're experiencing problems with your NG900 or 9-3, post your question in here. CEL Code or GTFO!

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Old 10-02-2008, 05:14 PM   #41
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Originally Posted by Palmer View Post
Ok, I'm going to sticky this.

Just as an FYI, 1805 is the length for a T-5 motor without the A/C and without the idler pulley.
Thank you Andy because I kept thinking that the 2k mm belt would be way to long for mine. May need this as a backup plan now.



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Old 10-02-2008, 05:18 PM   #42
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Uh-oh, no AC compressor replacement? Where did you score the new one and, gulp, how much was it?
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Old 10-02-2008, 05:22 PM   #43
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Uh-oh, no AC compressor replacement? Where did you score the new one and, gulp, how much was it?
Used from Aaron with discount. I've been without AC for a while due to a bad compressor. However if, and see other thread, the shop somehow screws up I'm going to tell them to leave the compressor off and shortbelt.



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Old 11-06-2008, 10:39 AM   #44
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stg 5 99 9-3 coupe
96 900se sold

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Old 09-09-2009, 02:49 PM   #45
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Thanks to everyone for the instructions above - my girlfriend and I quickly switched out our belt today in about an hour.

Does anyone know the appropriate fuse we should pull in order to kill the a/c compressor? From this link here it looks like #19 from the instrument panel and No. 5 from the engine bay...

What about all the listed ACC fuses?

Thanks!

C
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Old 09-09-2009, 02:52 PM   #46
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Looks like fuse J in the engine bay for the AC compressor. Although, I left it in, no big deal.

Welcome to the site and glad we could be of some help!
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Old 09-09-2009, 03:00 PM   #47
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Thanks for the speedy reply and the welcome!

Only question: our compressor is actually working great - we had to bypass the pulley because the pulley bearings were starting to go and we didn't feel like spending a grand (at a shop) to replace the whole unit just to fix a stupid bearing.

Is there any danger in killing the unit if we leave the fuse in? I'm hoping at some point we might work up the nerve to just try and replace the bearings ourselves, and I want that compressor still working when we get around to it!

C
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Old 11-19-2009, 06:51 AM   #48
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Hi, new poster here - not new to Saabs, just new to this forum. I'm curious about bypassing the AC compressor. It looks to me that if the AC compressor is bypassed, the serpentine belt still goes around the top of the PS pump pulley, then under the water pump and on to the crankshaft pulley. If this is correct, the water pump will spin in the opposite direction. Am I missing something here? TIA... Ron
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Old 11-19-2009, 07:10 AM   #49
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You must be missing something, it isn't going to spin the water pump backwards...


I think this diagram shows the routing sans A/C compressor, just the PS and O2 pumps. Correct me if I am wrong...

http://www.eeuroparts.com/Main/Diagr...ng900belts.gif

However It does show the center idler pulley which I think a lot of people just bypass as well.
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Old 11-19-2009, 09:41 AM   #50
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Ok, I see. For some reason, I thought that the belt from the PS pump came straight down and under the water pump pull instead of over the top of the water pump pulley. I already have the idler delete short belt mod, so I guess it wouldn't hurt to carry an AC compressor delete belt just in case. Thanks... Ron
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Old 03-13-2010, 08:40 PM   #51
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Just an update from Tweek, but it looks like the last NG900s and early OG9-3s actually take a 1815 mm belt for the short belt/AC delete based on a larger diameter bit on the belt tensioner, I think. I'm sure he'll chime in if I'm wrong. I added that info to the first post.

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Old 05-28-2010, 12:43 PM   #52
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yeah so i'm pulling up an old one....

I have a 99 9-3, replaced the tensioner after i snapped it following the rebuild.. oops.
so does that leave me at 1805 or 1815?

i have a 200mile road trip coming up and the ac compressor sounds like a rock tumbler.
i'm going to pick up a spare to toss in the trunk for the inevitable roadside repair.

thanks!
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Old 05-31-2010, 04:51 AM   #53
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my 99 9-3 worked perfectly with a duralast belt from autozone 715k6 (71.5 inch 6 peak). Lots of parts folks don't know what the #s on belts mean. Also 5060715(gates) k060715 (goodyear/gatorback). For the 900s try 710k6, 5060710, k060710 (71 inch 6 peak).

Somewhat related item ng900 with a/c minus center idler 960k6, 5060960, k060960. Same idea, 96 inch 6peak. You can use a 955 here, but it's tight.
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Old 06-26-2010, 03:45 PM   #54
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This works on 9-5s too. 1816mm belt from O'Reilly's, bypassing both the A/C and the center idler. Thanks for the info in this thread.

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Old 12-27-2010, 12:41 PM   #55
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Quote:
Originally Posted by aireeca View Post
Just an update from Tweek, but it looks like the last NG900s and early OG9-3s actually take a 1815 mm belt for the short belt/AC delete based on a larger diameter bit on the belt tensioner, I think. I'm sure he'll chime in if I'm wrong. I added that info to the first post.
Bump...

I'm bypassing my rattling A/C and the center idler pulley...but I'm wondering if my 1998 NG900 would be considered one of the "last ones" and have the 1815 mm length rather than 1805...
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Old 12-30-2010, 07:32 AM   #56
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Well, I went with the 1805...seems fine right now, but the tensioner didn't go back as far as with the stock belt. So 1815 would be a safe choice I think.
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Old 12-30-2010, 07:42 AM   #57
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I picked the 1815mm one, and its been holding up for quite a while now
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Old 03-10-2011, 05:53 PM   #58
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So does anyone have a diagram on how to run the new belt? I looked in the manual but couldn't find it. Also do you have to remove the center idle pulley also for this or just the ac?
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Old 07-25-2011, 01:48 PM   #59
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Now, what if I want to bypass my center idler on an NG900, but bring back the A/C? Can I just buy the 9-3 belt?
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Old 08-25-2012, 01:55 PM   #60
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Hey guys. After a successful short belting on my '99 a few years back, about to do the same on my '01. The serpentine belt decided to eat itself a couple weekends ago. My question: I'm not positive that the AC is to blame. With no belt on the car right now I can spin all of the pulleys EXCEPT the AC. It won't spin at all. Should it spin? I'm going to short belt it just in case (fall is on it's way, right??) - but next summer I may throw the longer belt back on, just to see if the AC is really the issue.

Anyways, anyone recall if the AC pulley should spin freely? Thanks!
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