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Help with rattling sound @ front of engine
My son started his 944 this am and it started emitting a "rattling" sound that seems to go away with some engine RPMs. As we drove later the sound has become worse and more steady.
Could this be a failed water pump? No coolant leakage? Could this be a belt tensioner? How can I tell without taking it apart? Help please? I would like to have some diagnosis before I start working on this.
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Jay Traner 1984 911 targa 1923 STuTZ 690 Touring 2014 VW CC 2.0T 2021 Subaru Forester (Mrs) |
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03-18-2007, 12:45 PM
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are you sure its from the front?
does full engagement of the clutch make any difference? (press it and HOLD it) see if there is a change....
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1995 993 C2 |
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03-18-2007, 12:52 PM
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Join Date: Jul 2004
Location: Vinegrove Ky
Posts: 238
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Your best bet would be to take the front belt cover off and take a good look.
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1987, 944S (168,000 miles)..sold 1986, 944na. My job is a hobby. My 944's are work. |
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03-18-2007, 12:53 PM
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Check the exhaust heat shield below the exhaust close to the motor mount.
They rattle when they break which is similar to the sound you described.
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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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03-18-2007, 01:34 PM
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Water pump. Pull the top cover reach down and try to wiggle it side to side, up and down.
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Hugh - So Cal 83 944 Driver Person NOT a 'real' Porsche -- Its Better!!!! When was the last time you changed your timing and balance belts and/or cam chain and tensioner? New Users please add your car's year and model to your signature line! Never break more than you fix! |
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03-18-2007, 02:33 PM
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ALL FIXED!
Got my trusty stethoscope and found the noise at the front of the cam. Pulled the distributor cap and found the rotor hitting the cap due to the distributor stub shaft being loose. Took it all apart, inspected everything, reassembled with some blue loctite and all is well. Next up (after the weather in Cleveland, Oh improves) is the timing & balance shaft belts. Thanks for your suggestions! JHT
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Jay Traner 1984 911 targa 1923 STuTZ 690 Touring 2014 VW CC 2.0T 2021 Subaru Forester (Mrs) |
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03-18-2007, 03:50 PM
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Did you check the bolt holding the cam gear to the cam shaft?
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Hugh - So Cal 83 944 Driver Person NOT a 'real' Porsche -- Its Better!!!! When was the last time you changed your timing and balance belts and/or cam chain and tensioner? New Users please add your car's year and model to your signature line! Never break more than you fix! |
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03-18-2007, 03:57 PM
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All tight.
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Jay Traner 1984 911 targa 1923 STuTZ 690 Touring 2014 VW CC 2.0T 2021 Subaru Forester (Mrs) |
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03-18-2007, 04:22 PM
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Red
993 C2
911
1983 Porsche 944 2.5 liter
