Bang in the rear
11-19-01, 01:11 PM
#1
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Bang in the rear
When I push the clutch in to shift I have this banging in the rear it differs in intensity depending on how high i rev it before I push the clutch in and shft up. I can get it to not band by slipping the clutch a bit. What is it? I have heard somthing about a rubber piece in the rear which could be broken? If so can I just replace this piece or do I have to replace whatever unit it is attached to?
Thanks.
Thanks.
11-19-01, 01:17 PM
#2
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same thing just started happening to me in the past week. 
if you brought it up to 7000 and dumped the clutch, i would recommend you not do this again. i have heard that this could be my drive shaft. it could be loose or it can be broken. also, i could just be a transmission mount. if you find out for sure what it is, please tell me so i can fix my noise too. thanks.
if you brought it up to 7000 and dumped the clutch, i would recommend you not do this again. i have heard that this could be my drive shaft. it could be loose or it can be broken. also, i could just be a transmission mount. if you find out for sure what it is, please tell me so i can fix my noise too. thanks.
11-19-01, 02:54 PM
#3
I was getting that too, and when I spun my car 4 times in one day (rainy autox course) it evolved into a broken diff mount (loud bang under moderate to hard accel from a stop) Get it looked at, it's probably precursor to the full blown broken diff mount. Have the mechanic weld up a bracket 
11-19-01, 03:14 PM
#4
I might suspect a broken differential mount. Here is Dale Clark's test to find out:
"One way I test diff mounts is get the car moving in 1st gear, about 2500 RPM. Push on and off the throttle - the car should be very jerky, and you'll hear the diff mount banging into the subframe."
To change the diff mount, it is easiest to drop the entire subframe out of the car. Sounds like a pain, but I've heard it isn't too bad.
"One way I test diff mounts is get the car moving in 1st gear, about 2500 RPM. Push on and off the throttle - the car should be very jerky, and you'll hear the diff mount banging into the subframe."
To change the diff mount, it is easiest to drop the entire subframe out of the car. Sounds like a pain, but I've heard it isn't too bad.
11-19-01, 07:55 PM
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There are three mounts, a round one in each "ear" and one on the arm infront of the diff.
I'm betting, from personal experinece, its the one on the front, and the good news is you don't have to remove the diff to replace it. Tight working area, but can be done.
The round ones are press in. If that's what you need, then PM demonracer . He has one he trying to sell, asking $55 shipped which actually is a pretty good deal. Its listed in the parts section of the Forum.
I'm betting, from personal experinece, its the one on the front, and the good news is you don't have to remove the diff to replace it. Tight working area, but can be done.
The round ones are press in. If that's what you need, then PM demonracer . He has one he trying to sell, asking $55 shipped which actually is a pretty good deal. Its listed in the parts section of the Forum.
Last edited by HOZZMANRX7; 11-19-01 at 08:10 PM.
11-19-01, 08:02 PM
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yup thats deffinally the dif mount...what a pain in the *** that is when ur driving.
i broke it doing a brake stand and the wheels hopped and broke it.
about 300 to fix.
mike
87 turbo2
i broke it doing a brake stand and the wheels hopped and broke it.
about 300 to fix.
mike
87 turbo2
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11-19-01, 11:37 PM
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Originally posted by JerryLH3
"One way I test diff mounts is get the car moving in 1st gear, about 2500 RPM. Push on and off the throttle - the car should be very jerky, and you'll hear the diff mount banging into the subframe."
"One way I test diff mounts is get the car moving in 1st gear, about 2500 RPM. Push on and off the throttle - the car should be very jerky, and you'll hear the diff mount banging into the subframe."
