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Join Date: Jul 2003
Posts: 1
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A/C Fan Belt Adjustment. HELP !!!!
I recently purchased a 1973 914 1.7 that believe it or not has semi cold A/C ( not my imagination I swear). The problem is at stops or very low RPM driving the compressor squeals because of belt slip on the pulley. The belt is very loose. I can feel a small idler pulley and tensioner bracket under the main compressor pulley but access is so tight I can't see it. Just by feel I can't figure out how to adjust the belt tensioner. Does anyone have any recent experience or remember from back in the day how to adjust A/C belt tension with the engine in the car. It is the VPC brand system with a large York compressor and the black metal box condensor in the front trunk. ANy help would be GREATLY appreciated.
Thanks.............Eric |
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07-08-2003, 06:40 PM
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Yep, you're suppose to shim the compressor's mounting bracket. The idler pulley provides no adjustment capability whatsoever.
Download this VPC AC manual (it's hefty; 'bout 32 megs) and it should provide the procedure. Be sure to start with a new belt if you're going to all that trouble. 
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Rouser! |
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07-08-2003, 07:47 PM
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Join Date: Jul 2003
Location: Highland Park, IL
Posts: 654
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Just dump the A/C, thats why the roof comes off
Adam
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1974 914 1.8 Sold... 1984 944 my baby...more of a pain in the @$$ than takin' it with a cucumber, but I still love it. THE CAR YOU PERVS!!!!!!!!!!!! 1990 Nissan 240sx fastback aka Japanese 944 |
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07-09-2003, 06:54 AM
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Join Date: Jul 1998
Location: San Fernando Valley, California
Posts: 151
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Sorry, Adam. When it's 100 degrees out there, even taking the top off doesn't help.
Leave the a/c where it is. Especially one that's working.
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Rich '73 1.7 '74 2.0 |
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07-09-2003, 09:08 AM
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In the shop at Pelican
Join Date: Aug 2002
Location: Los Angeles, CA
Posts: 10,459
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Just changing the belt on these is a chore in itself. You almost have to drop the engine. I wonder how they did it at the dealer. I t looks like they took off the engine fan and shroud to get it in there.
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07-09-2003, 09:35 AM
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Join Date: Jul 2003
Location: Highland Park, IL
Posts: 654
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It's all good Rich, I'm just not much of an A/C guy. Maybe it's because my current car gets 11mpg with out the A/C on and 8-9 with it.
Adam
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1974 914 1.8 Sold... 1984 944 my baby...more of a pain in the @$$ than takin' it with a cucumber, but I still love it. THE CAR YOU PERVS!!!!!!!!!!!! 1990 Nissan 240sx fastback aka Japanese 944 |
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07-09-2003, 11:32 AM
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I am installing a stealth a/c unit, I dont like the big hunk of thing under the dash, and Im pretty sure Im going to need it when I get the car running.. its susposed to be 105 friday.. I will show you all the pics of my install when I get it done.
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"It'll fit?" See my V8 thread Pics of my car Hear it with Magnaflow mufflers and shorty headers Or just hear it with open headers  Hear it current, No ugly tips. louder Incar ax vid. 4-2-05 7-16-05 SCCA auto x Stockton. <---------New! |
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07-09-2003, 12:12 PM
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1973 Porsche 914 
1973 Porsche 914 2.0
