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Join Date: Mar 2002
Posts: 3,563
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Annoying squeel when cold/wet!
Lately it's been very cold and wet around here in the mornings and when I pull away from stop, I can hear an annoying squeel from the motor. It sounds like a loose fan belt squeel.
Anyone else had this problem? I checked the tension on the fan belt and it "seems OK" to me. BTW, how much should the belt flex by if I apply pressure to it?
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Merv '89 911 Turbo Cab Protomotive MAP ECU, Twin Plugged Heads, GT2-EVO CAMs, 3.3L fully finned P&C's, ARP fasteners, C2T head gaskets, Titanium Retainers, Turbo spec valves, springs & guides, 964 splash valves, GT35R BB turbo, GSF Stainless Headers, Magnaflow Exhaust, Full bay Intercooler, TiAL 46mm w/gate, TiAL 50mm BOV, Apexi AVC-R EBC, SPEC Stage3+ Clutch kit, Crane CDI Ignition 
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06-05-2006, 04:46 PM
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Join Date: Mar 2001
Location: Marysville Wa.
Posts: 22,459
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the belt can be glazed, feel tight and squeek just fine. probably time for a new one. you should be able to move one side 1/4" or so. too tight is hard on everything that supports the pulleys.
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https://www.instagram.com/johnwalker8704 8009 103rd pl ne Marysville Wa 98270 206 637 4071 |
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06-05-2006, 05:35 PM
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with the engine running, go to the back and press on the throttle actuator arm to rev the engine and confirm that the squeal is coming from your fan belt..
ryan
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To the memory of Warren Hall (Early S Man), 1950 - 2008 www.friendsofwarren.com 1990 964 C4 Cabriolet (current) 1974 911 2.7 Coupe w/sunroof 9114102267 (sold) 1974 914 2.0 (sold) |
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06-05-2006, 05:50 PM
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Join Date: Mar 2002
Posts: 3,563
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I just recently had a major service done and the belt was supposedly replaced with a new one, so I would have thought the mechanic would have tensioned it properly. Find it kinda strange it'd start squeeling only 3-4K km's after the service was done. I'll check it out anyway.
Cheers 
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Merv '89 911 Turbo Cab Protomotive MAP ECU, Twin Plugged Heads, GT2-EVO CAMs, 3.3L fully finned P&C's, ARP fasteners, C2T head gaskets, Titanium Retainers, Turbo spec valves, springs & guides, 964 splash valves, GT35R BB turbo, GSF Stainless Headers, Magnaflow Exhaust, Full bay Intercooler, TiAL 46mm w/gate, TiAL 50mm BOV, Apexi AVC-R EBC, SPEC Stage3+ Clutch kit, Crane CDI Ignition
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06-05-2006, 08:11 PM
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1974 Porsche 911 2.7
