Clunk whenI shift.REAL BAD!
11-02-03, 04:36 PM
#1
Clunk whenI shift.REAL BAD!
Well I started off at a red light and all of a sudden BAM!!!!!!!!!!!!!!!!!!!!!! from the rearend.
Now I have replaced the front diff mount with Mazdatrix racing mount. I just yanked my exhaust off and it was in perfect condition.
The driveshaft joints have no play in them and I'm stumped. I am about to check the trans mount but I think it's fine.
I heard there are other diff bushings. Where are they? and how woulds I figure out what's wrong.
Also it only clunks when I shift and not when I'm in reverse.
Now I have replaced the front diff mount with Mazdatrix racing mount. I just yanked my exhaust off and it was in perfect condition.
The driveshaft joints have no play in them and I'm stumped. I am about to check the trans mount but I think it's fine.
I heard there are other diff bushings. Where are they? and how woulds I figure out what's wrong.
Also it only clunks when I shift and not when I'm in reverse.
11-02-03, 04:47 PM
#4
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Re: Clunk whenI shift.REAL BAD!
Originally posted by Digi7ech
Well I started off at a red light and all of a sudden BAM!!!!!!!!!!!!!!!!!!!!!! from the rearend.
Now I have replaced the front diff mount with Mazdatrix racing mount. I just yanked my exhaust off and it was in perfect condition.
The driveshaft joints have no play in them and I'm stumped. I am about to check the trans mount but I think it's fine.
I heard there are other diff bushings. Where are they? and how woulds I figure out what's wrong.
Also it only clunks when I shift and not when I'm in reverse.
Well I started off at a red light and all of a sudden BAM!!!!!!!!!!!!!!!!!!!!!! from the rearend.
Now I have replaced the front diff mount with Mazdatrix racing mount. I just yanked my exhaust off and it was in perfect condition.
The driveshaft joints have no play in them and I'm stumped. I am about to check the trans mount but I think it's fine.
I heard there are other diff bushings. Where are they? and how woulds I figure out what's wrong.
Also it only clunks when I shift and not when I'm in reverse.
11-02-03, 04:51 PM
#5
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Re: Re: Clunk whenI shift.REAL BAD!
Originally posted by Ni5mo180SX
Theres two other "doughnut" type mounts in the rear. Mazdatrix sells them for $62 each I believe.
Theres two other "doughnut" type mounts in the rear. Mazdatrix sells them for $62 each I believe.
11-02-03, 05:08 PM
#6
My brother had a broken front diff mount that we replaced with a with a good one. We took the car for a test drive and BAM the noise is still there. Its not as bad as before but it was still annoying.
Those "doughnut" mounts youre talking about are the two rear mounts? I've read and talked to rotary shops about those but everyone says they rarely go bad.
My brother and I are going to put his car on jackstands to see what exactly is making the clunk sound. I'll post what we find later today.
Those "doughnut" mounts youre talking about are the two rear mounts? I've read and talked to rotary shops about those but everyone says they rarely go bad.
My brother and I are going to put his car on jackstands to see what exactly is making the clunk sound. I'll post what we find later today.
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11-02-03, 05:21 PM
#9
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Originally posted by Digi7ech
Not a click.
a HUGE CLUNK!
Like someone just hit the rearend with a sledgehammer.
I haven't found any dents so I'm stumped.
Not a click.
a HUGE CLUNK!
Like someone just hit the rearend with a sledgehammer.
I haven't found any dents so I'm stumped.
11-02-03, 05:52 PM
#10
OK, I justed dropped the car and watched the under side as my dad went forward.
The differential tilts up in the front like it's on an axis.It doesn't move forward or bacl just up in the front and a little down in the back.
Anyone got a better clue now?
The differential tilts up in the front like it's on an axis.It doesn't move forward or bacl just up in the front and a little down in the back.
Anyone got a better clue now?
11-02-03, 06:00 PM
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I used to get a huge clunk taking off at the lights. Even when I was being good it still did it. I'd broken the diff mount right through, couple hundred $'s later I could stop living in fear.
11-02-03, 06:47 PM
#15
There is a brace (or there is suppose to be) on the top of the diff with a rubber stop on it. When you accelerate hard the diff rotates (front up like Digi7ech said) and the rubber stop hits the body pan. Check that the stop is still there, or that the brace isn't bent.
11-02-03, 06:49 PM
#16
Originally posted by Digi7ech
OK, I justed dropped the car and watched the under side as my dad went forward.
The differential tilts up in the front like it's on an axis.It doesn't move forward or bacl just up in the front and a little down in the back.
Anyone got a better clue now?
OK, I justed dropped the car and watched the under side as my dad went forward.
The differential tilts up in the front like it's on an axis.It doesn't move forward or bacl just up in the front and a little down in the back.
Anyone got a better clue now?
11-02-03, 06:52 PM
#17
Originally posted by jkrueger
There is a brace (or there is suppose to be) on the top of the diff with a rubber stop on it. When you accelerate hard the diff rotates (front up like Digi7ech said) and the rubber stop hits the body pan. Check that the stop is still there, or that the brace isn't bent.
There is a brace (or there is suppose to be) on the top of the diff with a rubber stop on it. When you accelerate hard the diff rotates (front up like Digi7ech said) and the rubber stop hits the body pan. Check that the stop is still there, or that the brace isn't bent.
I've never seen one of these "braces with a rubber stop" on any of my RX-7s. This sounds like a pinion snub (spelling?) that a previous owner could have installed. Youre not thinking of the front diff. mount are you?
11-02-03, 09:30 PM
#18
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Originally posted by wan
My brother had a broken front diff mount that we replaced with a with a good one. We took the car for a test drive and BAM the noise is still there. Its not as bad as before but it was still annoying.
Those "doughnut" mounts youre talking about are the two rear mounts? I've read and talked to rotary shops about those but everyone says they rarely go bad.
My brother had a broken front diff mount that we replaced with a with a good one. We took the car for a test drive and BAM the noise is still there. Its not as bad as before but it was still annoying.
Those "doughnut" mounts youre talking about are the two rear mounts? I've read and talked to rotary shops about those but everyone says they rarely go bad.
11-03-03, 02:40 AM
#20
Funny you said that Icemark.
I haven't posted until now because I just finished.
The mounting point for the Diff mount had broken partially.The middle metal part between the 2 bolts completely broke off!
There was a 1 square inch piece sitting in there.
After 2 hours trying to get the mount close enugh to the bolts I tightened it back on as best I could. About 60% of each bolt has a good contact with the bracket.
I am sooooo hoping this will last. I will be driving very carefully now. So i guess the Mazdatrix racing mount was tougher than the metal was.
I haven't posted until now because I just finished.
The mounting point for the Diff mount had broken partially.The middle metal part between the 2 bolts completely broke off!
There was a 1 square inch piece sitting in there.
After 2 hours trying to get the mount close enugh to the bolts I tightened it back on as best I could. About 60% of each bolt has a good contact with the bracket.
I am sooooo hoping this will last. I will be driving very carefully now. So i guess the Mazdatrix racing mount was tougher than the metal was.
11-05-03, 04:34 PM
#21
MOTHERLLkjhl;akjfd;laksjf;laskjfalksjf;aljj^%*^%@( &%^^^$#WDYUIASDHA&SD%^(ASDKJLASDAN(*S^)DAS^&D(*&D( )A&D@N_ASD ING POS!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
AHHHHHHHHHHHHHHHHHHHH!!!!!!!!!!!!
The piece of **** just broke again!!!! Not even 3 days after I fixed. ****!!!!!!!!!!!!!!!!!!!!! Of course the ******* subframe side of the mount had to ******* break!!!!!!!
So what's going to break with me driving like this??????
From the huge jerks the diff does I'm guessing joints on driveshaft and possible breaking the joints off.
AHHHHHHHHHHHHHHHHHHHH!!!!!!!!!!!!
The piece of **** just broke again!!!! Not even 3 days after I fixed. ****!!!!!!!!!!!!!!!!!!!!! Of course the ******* subframe side of the mount had to ******* break!!!!!!!
So what's going to break with me driving like this??????
From the huge jerks the diff does I'm guessing joints on driveshaft and possible breaking the joints off.
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