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Join Date: Jan 2004
Location: Falls Church, VA
Posts: 1,177
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new bad noise
just when I thought I was getting the car pretty sorted out... started making a new, alarming noise. Whenever the A/C is on and the engine is at idle, I hear a noise that sounds an awful lot like a couple bolts rattling around in a coffee can. Can this be anything other than the A/C compressor or clutch? the A/C still works OK and the noise goes away immediately when I shut the A/C off.
How much $$$ am I looking at to repair? (hate to ask...) nate
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1988 944... and a bunch of other cars 
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09-03-2004, 05:28 AM
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Join Date: Feb 2001
Location: Viera FL
Posts: 5,642
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Your clutch on your compressor is siezing up. and\or your compressor is tearing itself apart.
get a 12mm wrench on a socket and try to turn the compressor over - you should be able to hear the noise and\or feel resistance. Either way, the parts are rather expensive. AFJuvat
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Es geht nicht darum wie schnell man faehrt, sondern wie gut man schnell fahren kann. Ihr Brunnen der nutzlosen Porsche Information |
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09-03-2004, 06:26 AM
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Join Date: Aug 2004
Location: Mandeville, La.
Posts: 52
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also check your radiator fans, one could be locking up or there is something hitting them. They both come on when the AC is on.
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86 951 Black on Black Konis Yellow front, Orange back Fast as hell 87 944 na 66 Skylark ( in parts ) 750 Honda Chopper (8 ' Looong) 800 Vulcan 02 Grand Prix GTP ( Wifes Car) also Fast as Hell |
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09-03-2004, 06:54 AM
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It could be the heat shield under the exhaust manifold. The shield can break close to the mounting points and cause it to rattle. Don't ask how I knew!
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1993 964 C2 still makes me smile Retired and work as needed as a pain in the **s. |
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09-03-2004, 02:16 PM
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Join Date: Jul 2001
Location: Edmonton, Alberta, Canada
Posts: 4,530
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Quote:
Hard to believe I would want to turn it on with 50 degree weather...... No solution but a new compressor I take it. 
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Alex - PCA Polar Region - Boxster Muncher 86' 944 Turbo - Megasquirt - 326 rwhp/340lbft @ 18 psi SOLD www.edmontonhomelife.com www.edmontonrealestate.ws Last edited by ae1969; 09-03-2004 at 02:53 PM.. |
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09-03-2004, 02:47 PM
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Join Date: Oct 2004
Location: Leesburg, VA / Pittsburgh, PA
Posts: 169
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Quote:
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02-04-2005, 01:22 PM
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This is a real pita to remove.
I had to break it into half by unbolting the two M6 hex bolts holding the two together from under the car. Then remove the shields from the block with those two M6 allen socket head bolts. Another pita. Then try to get one section out through the manifold and the other one through the oil filter section with the oil filter removed. I managed to weld the broken tabs using a mig welder. Then go through another session of difficult maneuvering to install.  Good luck and have a lot of patience
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1993 964 C2 still makes me smile Retired and work as needed as a pain in the **s. |
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02-04-2005, 02:42 PM
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Join Date: Oct 2004
Location: Leesburg, VA / Pittsburgh, PA
Posts: 169
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So would it be a bad idea to remove them... and not reinstall ?
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'05 M3 - Alpine White '88 924S - Black '91 318IS - Alpine White '88 Honda Hawk '75 Honda CB360 |
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02-04-2005, 03:15 PM
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Yes, it would be a bad idea to remove it.
It shields the heater hose, heater valve, balance shaft seals and the passenger side engine mount in a way from exhaust heat. That's why I fixed it and put it back.
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1993 964 C2 still makes me smile Retired and work as needed as a pain in the **s. |
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02-04-2005, 03:22 PM
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911
