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Join Date: Jun 2006
Location: new york
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Transmission clang sound
I just painted my car and my interior is bare to the bone. now that the carpet is out, i hear every little thing. there is a grinding sound from the transaxle and when i push in the clutch, i hear a soft clanging (metal sound) inside of the transmission. i know the locations because they are under my seat. are these sounds normal or not?
they are not loud but....
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Yellow 1983 944. Many alterations, modifications, repairations and aberrations. Great car!! 
Last edited by thoen; 05-07-2008 at 10:38 AM.. |
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05-07-2008, 10:33 AM
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the transaxle isn't under your seat...it is under the rear hatch deck. there's a grinding noise until you press the clutch? then a clanking sound? hmm...throw out bearing going? TT bearings? transaxle? syncros...these all come to mind.
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Rick, Chatsworth, Ontario, Canada 1988 944S 18" 993TT wheels Magnaflow hi performance exhaust K & N air filter and MaxHP Kit chip |
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05-07-2008, 02:13 PM
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good thoughts!!
i replaced the clutch about a year ago and don't even know if the "milling", "grinding" sounds are normal since the car has no carpeting whatsoever right now. if i wait...what is the worst that can happen? and what do i listen to or look for? the "hitting" sound sounds like the gears are engaging. should there be NO sound? or is a little sound normal? best and thanks!!!
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Yellow 1983 944. Many alterations, modifications, repairations and aberrations. Great car!!
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05-07-2008, 02:18 PM
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bump
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Yellow 1983 944. Many alterations, modifications, repairations and aberrations. Great car!!
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05-11-2008, 05:27 PM
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These trannys are not super quiet from my experience with them. I just replaced mine with another used one since my pinion gear had a 1 inch hunk that came off and stuck to the magnet on the side cover...put the car on jackstands, start it, put it into 5th gear, let the clutch out and listen to it as it runs from the outside or underneath. BE VERY CAREFUL THAT YOU ARE ON A LEVEL SURFACE AND HAVE PROPER SAFETY STANDS THERE AND SOMEONE ELSE WITH YOU.
You will hear it without load from the car's weight...any weird noises will be easy to hear.
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Rick Harrison 1988 944S 17 inch Cup 2's, euro bumper conversion Magnaflow 2 1/2" exhaust with K & N 4 inch custom intake MaxHP chipped |
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05-12-2008, 09:32 AM
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rick,
i will try it this weekend. what you are saying is that when driving (load) some of the transmission clang is normal? this sound happens when i let release the clutch. thank you for your input. i figured out the the "milling sound" has something to do with the bearings in the torque tube. how long can i wait before i replace them. what is the level of noise that is allowable.
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Yellow 1983 944. Many alterations, modifications, repairations and aberrations. Great car!!
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05-12-2008, 10:54 AM
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TT bearings make the shifter vibrate. if running, with the car in neutral and you push/release push/release the clutch pedal...if your hear a "milling" sound when you release the clutch, the release bearing could be rattling, or if the clutch hasn't been changed to a spring centred clutch the old rubber will chatter in neutral...to eliminate the transmission you'd have to get under the car and disconnect the transmission coupler. if the noise is gone while the engine is running in neural, its definitely in the tranny.
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Rick Harrison 1988 944S 17 inch Cup 2's, euro bumper conversion Magnaflow 2 1/2" exhaust with K & N 4 inch custom intake MaxHP chipped |
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05-12-2008, 11:16 AM
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Join Date: May 2004
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Pilot bearing would be my guess.
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05-12-2008, 06:40 PM
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i will check all of things out. the milling sound is when i am driving. the clank is when driving and i release the clutch to go into the next gear.
thanks!
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Yellow 1983 944. Many alterations, modifications, repairations and aberrations. Great car!!
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05-13-2008, 06:57 AM
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Composite Shop Owner, DJ
Join Date: Oct 2001
Location: Saint Helens, OR, USA
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Sounds like the clutch disk has gone bad. Is it still the original with the rubber center dampener? If so, the rubber center is torn from the disk.
Kris
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'86 944, 5 Speed (Daily Driver) |
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05-13-2008, 12:15 PM
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my (expensive!) porsche mechanic replaced the clutch about 22months ago...ok, i'll say it, two years ago. the clutch is good and he showed me what the "rubber" looked like from the original clutch. i believe that the clutches put in now are all spring type?!
the reason i said "(expensive)" is because i cannot afford a future of repairs done by a shop, so i have begun doing all of the necessary and some, optionals by myself. i replaced the master cylinder, both clutch cylinders, starter, alternator, hoses, vacuum hoses, etc. what is left now is a beautiful speed YELLOW car with the small grinding (that one passenger said of, "wow...great. it SOUNDS like a sports car!" that sportscar sound i think are bearings getting old. the clang has something to do with the clutch release and it comes from the transmission area itself. it does not happen on 4th or 5th gear (i can't hear it at that speed anyway) but is a notisable light clanking sound as it goes into the next gear. 1 and 2 and 3rd. thanks for the GREAT in depth help, guys!!!!!!!!!!!!!!!!!!!!!!!
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Yellow 1983 944. Many alterations, modifications, repairations and aberrations. Great car!!
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05-13-2008, 01:54 PM
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