tranny rattle

[HondaKiller93]

ok i have a question. first off the car is a 93 MTX. i just replaced the clutch/flywheel and TOB during a clutch job. i adjusted the pedal by pulling up on it with 10 lbs of force when everythin was done. in netural now i have a faint chatter, it sounds like the throw out bearing. the second i put the clutch in, it goes away. any ideas anyone?


the parts i used were:

southbend dxd series clutch
sho shop 8lb aluminum flywheel
sho nut cermic TOB


thanks guys

 

[sdpatt]

It's probably due to to the interface between the pressure plate and the throwout bearing as you suspected. The PP's fingers are never perfectly flat at the contact point with the TOB. Just make sure that the clutch cable tension is checked frequently for the next few 100 miles as you should be noticing the noise to be decreasing. It will eventually go away as the TOB an PP fingers wear in a bit. Sit tight.

 

[HondaKiller93]

alright thanks alot!

 

[Yamaha V6]

I am told that's normal / common issue with aftermarket clutch / pressure plate combos & the ceramic TOB. If you're concerned with it, contact Josh T.

 

[masho95]

I've the same noise with my tranny since I put my Quaife in. Originally I thought I damaged the ceramic TOB after dropping it off the table during the rebuild. Just finished tearing the tranny apart again last night and think I might have found my problem. The driver side axle was not fully seated in the tranny, and when I finally pulled it out yesterday I noticed the circlip that supposed to hold it in the tranny is MIA. The only thing I can think of is that is was lost inside the Quaife and causing the rattling noise. Upon disassembling the tranny internals the clip was no where to be found. Looking inside the Quaife but as Mark N. suggested there isn't really anywhere for it to go. (unless the Quaife just chewed it to nothing) So I finished reassembling the tranny and everything should be back together in the next day or two. I'm not in a hurry (this is my vacation ) So with new 1-4 blocking rings, 1-2 synchro, and main shaft top bearing and shim, another new ceramic TOB, teflon impregnated release arm bushings, ball joints, TPR strut rod bushings, and a new circlip for that stubborn axle, hopefully I won't have to do this again to my car for a while.

Edit: As Scott said though that chatter is normal for a little while after that type of installation. In my case the noise was persistant and slowly got worse until it was constantly making the noise. Although the noise did go away with the clutch pressed.

<small>[ November 05, 2003, 12:29 PM: Message edited by: masho95 ]</small>

 

[MilTownSHO]

masho95:


As Scott said though that chatter is normal for a little while after that type of installation. In my case the noise was persistant and slowly got worse until it was constantly making the noise. Although the noise did go away with the clutch pressed.

See I was there helping out a little bit when he did his clutch and when I heard that I instantly knew it was the TOB. Figured might be more common like someone said, due to the aftermarket parts, but my friend with a 90 SHO got a new clutch and his TOB was loud, so he took it back, they redid it and still the same problem!

 

[revhardSHO]

yeah its just the TOB. They all make a little noise.

 

[Bizzy]

Don't forget about neutral rollover rattle, relatively common and is often mistaken for internal bearing problems or TOB rattle. It will not cause damage to the transmission. There is nothing you can replace in the tranny that will stop the noise (if that is indeed what the noise is).

<small>[ November 05, 2003, 07:34 PM: Message edited by: Bizzy ]</small>

 

[HondaKiller93]

thanks all i appreciate your help!

i think everything is alright with the tranny, and its just the TOB.


thanks again.

 

[SHOguy 92]

Hey, so you got it all done? How long did it take? You gotta tell me how that flywheel is? Does it rev up faster and throttle response is quicker?

 

[revhardSHO]

SHOguy11:
Hey, so you got it all done? How long did it take? You gotta tell me how that flywheel is? Does it rev up faster and throttle response is quicker?

Obviously the engine would rev faster, the aluminum flywheel is almost 1/3 the weight of a stocker.

 

[masho95]

SHOguy11:
Hey, so you got it all done? How long did it take? You gotta tell me how that flywheel is? Does it rev up faster and throttle response is quicker?

I've got the SS 8-lb. flywheel on mine, and boy does it rev up nice!
Earlier problem on mine: Turns out that circlip on the axle stub was actually still there, but it was just very hard to see. The end of the stub teeth right before the circlip are all marred and the axle won't seat at all in the tranny. Time to buy a new halfshaft. So maybe my rattle was more internal after all... We'll see when this thing is done.

 

[Anthony1238]

I have the same problem...it has been about 6 months and the ratteling is still there... I assume it is the TOB, so your saying that i shouldn't worrie about it cuz it's normal...I just don't want to grenade another tranny.

 

[masho95]

According to most people, that chattering noise you hear after doing a clutch job and putting in a new TOB, is just the TOB rattling around on the pressure plate fingers, and over time and mileage (anyone have an estimated mi. it should stop?) it should go away. If the pressure plate fingers aren't completely even when you have the clutch out the TOB is supposed to be just contacting them without putting pressure on them, and it's going to "walk" back and forth on the uneven fingers until they wear down to be even with the rest of them. And when you press the clutch in, you'll notice the noise go away because the TOB is firmly pressed against the PP fingers and there is no room for movement or the rattle. I've been driving mine for months with this noise and I decided to tear it all apart again to hopefully figure out what the deal is. When I finish by then end of the weekend it looks like now, hopefully I will have fixed it.

 

[SHOguy 92]

smithsil:

SHOguy11:
Hey, so you got it all done? How long did it take? You gotta tell me how that flywheel is? Does it rev up faster and throttle response is quicker?

Obviously the engine would rev faster, the aluminum flywheel is almost 1/3 the weight of a stocker.

Obviously,Thanks for the stuck up sound you had to your post. Of course it revs faster that is something I did just happen to know from its lighter weight. I was just asking how much better it felt and some of those details.

 

[MilTownSHO]

SHOguy11:

smithsil:

SHOguy11:
Hey, so you got it all done? How long did it take? You gotta tell me how that flywheel is? Does it rev up faster and throttle response is quicker?

Obviously the engine would rev faster, the aluminum flywheel is almost 1/3 the weight of a stocker.

Obviously,Thanks for the stuck up sound you had to your post. Of course it revs faster that is something I did just happen to know from its lighter weight. I was just asking how much better it felt and some of those details.

He blipped the throttle and instantly it was at 3 grand, and we were driving and he put the clutch in and the tach feel down very quickly.

 

[revhardSHO]

SHOguy11:

smithsil:

Originally posted by SHOguy11:
<strong> Hey, so you got it all done? How long did it take? You gotta tell me how that flywheel is? Does it rev up faster and throttle response is quicker?

Obviously the engine would rev faster, the aluminum flywheel is almost 1/3 the weight of a stocker.

Obviously,Thanks for the stuck up sound you had to your post. Of course it revs faster that is something I did just happen to know from its lighter weight. I was just asking how much better it felt and some of those details. </strong>[/QUOTE

sorry to come off a little stuck up there. Guess i should of worded my post better? shrug