Input shaft bearing???
It sounds like you are describing clutch chatter. While in neutral or coasting there is no load on the clutch and it will rattle. When you accelerate slightly and the noise goes away you are putting a load on the clutch. On decel when you put the clutch pedal in your are putting a load on the clutch, thus sound goes away.
As the clutch wears down over time, the chatter will increase. You said that when you installed a new clutch it got better. I would expect this. If you have an aftermarket racing clutch, you should expect chatter.
As the clutch wears down over time, the chatter will increase. You said that when you installed a new clutch it got better. I would expect this. If you have an aftermarket racing clutch, you should expect chatter.
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From: Harrisburg, PA
It's NOT clutch chatter. Clutch chatter happens upon engagement of the clutch, the jutter you feel as you feather the clutch when pulling out from a stop. This noise I'm experiencing I'm almost certain is the input shaft bearing. My only concern is how long with the input shaft bearing last in this condition. I've had this noise going on 3 years. I want to say it's gotten louder, OR, I've just been paying more attention to it.
Either way, I've asked around and looked around a lot of the internet and haven't found anybody who has seen an Evo input shaft bearing fail catastrophically.
Either way, I've asked around and looked around a lot of the internet and haven't found anybody who has seen an Evo input shaft bearing fail catastrophically.
Last edited by MitsuJDM; May 3, 2012 at 03:37 PM.
So after getting my transmission rebuilt, I put a new clutch in and refilled the tc my sound is gone!!!!!!!!!!!!!!
I really think its possible that the noise is from an improperly filled transfer case. It is very difficult to fill it due to the thickness of the fluid.
A local shop, FFTEC, has a guy named Dave who built my transmission.
He said the best way to fill it is to fill from the drain hole. Basically you need tubing the same size as the drain hole. You keep pumping until it begins to overfill at the fill hole. Quickly you must close the fill hole pump 2 more times and quickly cover the drain hole. And that's it.
I did check it and as I was taking out te fill plug after 1k miles it is readily coming out meaning it is filled properly.
When I initially drained it I noticed that there was not that much fluid in it at all.
This may be something worth trying.
I really think its possible that the noise is from an improperly filled transfer case. It is very difficult to fill it due to the thickness of the fluid.
A local shop, FFTEC, has a guy named Dave who built my transmission.
He said the best way to fill it is to fill from the drain hole. Basically you need tubing the same size as the drain hole. You keep pumping until it begins to overfill at the fill hole. Quickly you must close the fill hole pump 2 more times and quickly cover the drain hole. And that's it.
I did check it and as I was taking out te fill plug after 1k miles it is readily coming out meaning it is filled properly.
When I initially drained it I noticed that there was not that much fluid in it at all.
This may be something worth trying.
Did you get your transmission rebuilt and the sound was still there?
...then you re-filled your TC and the sound disappeared?
Or did you get your transmission rebuilt and you refilled your TC at the same time, in which case you can't say for sure it was the TC? Rebuilding the transmission would involve putting in a new input shaft bearing.
There was a guy before mentioning that he had his tranny rebuilt and he still had the problem so I dunno.
...then you re-filled your TC and the sound disappeared?
Or did you get your transmission rebuilt and you refilled your TC at the same time, in which case you can't say for sure it was the TC? Rebuilding the transmission would involve putting in a new input shaft bearing.
There was a guy before mentioning that he had his tranny rebuilt and he still had the problem so I dunno.
I refilled it at the sametime.
I mean this will cost 80 bucks with a transfer pump and fluid.
I think it's very worthwhile for you guys.
Many people have gotten their transmissions rebuilt and sound does not change.
Can someone try this please? If your in the sf bay area you buy fluid I'll put it in so we can finally attempt to have a solution that's clear cut.
I mean this will cost 80 bucks with a transfer pump and fluid.
I think it's very worthwhile for you guys.
Many people have gotten their transmissions rebuilt and sound does not change.
Can someone try this please? If your in the sf bay area you buy fluid I'll put it in so we can finally attempt to have a solution that's clear cut.
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From: Harrisburg, PA
If the noise (in my case) was the T-case, then the sound wouldn't change at idle depending on if you push the clutch pedal in? Also, the sound is dependent on engine RPM, not wheel speed. I'm pretty sure we're experiencing two different sounds.
It cant be the TOB cus most of the Evo owners replace it with a new one when they get a new clutch and almost everyone is saying it still makes the coffee can noise including mine.
Flywheel? Yeah i had a clutchmasters stage 1 lighter flywheel which made tons of noise but so did the OEM flywheel. I think it MAY be the gears because gears are always constant mesh turning unless the clutch is in which means no power transfered to the tranny and drivetrain components. There could be just a little play from wear and tear. When you accel, it puts loads on the gears which could be meshing a little harder and when you decel, it reliefs the load letting the gears rattle again. Just my thinking, not a 100% answer. The noise needs to freaking go away lol
Flywheel? Yeah i had a clutchmasters stage 1 lighter flywheel which made tons of noise but so did the OEM flywheel. I think it MAY be the gears because gears are always constant mesh turning unless the clutch is in which means no power transfered to the tranny and drivetrain components. There could be just a little play from wear and tear. When you accel, it puts loads on the gears which could be meshing a little harder and when you decel, it reliefs the load letting the gears rattle again. Just my thinking, not a 100% answer. The noise needs to freaking go away lol
purchased a new tranny built from company "x" the race on the bearing for the input shaft was missing. it did make a terrible sound like dragging rocks in a tin can under the car. just the slightest bit of gas in first gear would kick it out of gear. the rest of the gears ran fine except when decal with it in gear then the noise would come back. visibly i pulled the shift selector off of the tranny (With the car in the air) rotated the tires forward and backwards and i could visibly see the input shaft moving all around. idk if that will help you locate anything....
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Joined: Jun 2012
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From: Chichester
Wow, how glad am I that I found this thread?
I'm having the same noises, etc on my Evo VII. Worst part of mine is if I put the car into 5th at anything below 3000rpm\80mph the whole car judders real bad. Any ideas?
Car has recently had full service with full fluids.
Last clutch done 20000 miles\3 years ago.
I'm having the same noises, etc on my Evo VII. Worst part of mine is if I put the car into 5th at anything below 3000rpm\80mph the whole car judders real bad. Any ideas?
Car has recently had full service with full fluids.
Last clutch done 20000 miles\3 years ago.
Last edited by Pezzar; Jun 17, 2012 at 09:44 AM.
So nobody has ever seen a catastrophically failed input shaft bearing? I'm trying to get an idea of how long I can let this go while I save up money to build my trans.
I read A LOT about people with the same noise. Some say they have had it for years, or since the car was new, or for 60k miles or whatever. It seems to be more of an annoyance than anything that needs immediate replacing. Most unknowingly think it's a throw-out bearing (I used to be one until I replaced a few input shaft bearings myself). But nobody ever seems to mention if they have any failures or if they ever fix the noise with a new input shaft bearing.
I read A LOT about people with the same noise. Some say they have had it for years, or since the car was new, or for 60k miles or whatever. It seems to be more of an annoyance than anything that needs immediate replacing. Most unknowingly think it's a throw-out bearing (I used to be one until I replaced a few input shaft bearings myself). But nobody ever seems to mention if they have any failures or if they ever fix the noise with a new input shaft bearing.
Bump
This is still an ongoing noise. I'm 95% sure it's a bad input shaft bearing. My question is, I've only once seen in person and input shaft bearing catastrophically fail on a Honda. It then ripped the input shaft seal, leaking fluid onto the clutch disc causing the clutch to slip. Otherwise, even with a blown apart bearing, the car still ran. It was just noisy.
Has anybody ever had their input shaft bearing fail completely? If it's just noise, then it's noise. I could care less. But is there a risk in the Evo transmissions of this bearing failing and blowing to pieces? I've been driving my car around just waiting for the bearing to explode. I've heard noisy input shaft bearings on many cars, mostly in neutral with the clutch engaged. It never causes any serious issues except for the instance I mentioned before.
This is still an ongoing noise. I'm 95% sure it's a bad input shaft bearing. My question is, I've only once seen in person and input shaft bearing catastrophically fail on a Honda. It then ripped the input shaft seal, leaking fluid onto the clutch disc causing the clutch to slip. Otherwise, even with a blown apart bearing, the car still ran. It was just noisy.
Has anybody ever had their input shaft bearing fail completely? If it's just noise, then it's noise. I could care less. But is there a risk in the Evo transmissions of this bearing failing and blowing to pieces? I've been driving my car around just waiting for the bearing to explode. I've heard noisy input shaft bearings on many cars, mostly in neutral with the clutch engaged. It never causes any serious issues except for the instance I mentioned before.
Ignore what I am saying, I didn't know what the deal was until I yanked the transmission apart. When it fails, it's very loud and very annoying. I drove it like that for about 40 miles home and took it apart and found pits all over the input shaft bearing. it's been 17k miles since that and it's perfect! The rattle can noise is clutch clatter.
After reading through this thread and others about this noise, some of the sypmtoms described match with a problem i'm having. any input would be apreciated. i bought my evo in february with 72xxx mile, and noiseless. a month after owning the car i did a transmission fluid change using Amsoil. about a month after that one night while driving i noticed a rattling was coming from my car. as for the symptoms of the noise, its very audible on a cold start, but after it gets warm the noise is gone, at idle. if however i rev it over 2000 rpm the rattle comes back and diminishes with rpms, reaching idle, the noise is gone. with the clutch pedal pressed in all the way and a little rev, the exact same noise happens. for the most annoying part about it, no matter what gear im driving in, if i coast to a stop or coast in general in gear, the second i take my foot off the gas the rattle comes back. if i slightly press on the gas it goes away. and if i put the clutch in when i'm coasting, the rattle declines with the rpms. any help and input would be greatly appreciated. I attempted to take a video clip with my gopro, but all i got was a bunch of wind. thanks again.
Could be a FEW things, there are a lot of moving parts in this trans. A worn Slider,Shift fork, one of the few bearings in it. Its the Trans if your at idle and hear it, press the clutch and it goes away.
I notice worn Sliders and shift forks sound like Rattling cans.
I notice worn Sliders and shift forks sound like Rattling cans.
Could be a FEW things, there are a lot of moving parts in this trans. A worn Slider,Shift fork, one of the few bearings in it. Its the Trans if your at idle and hear it, press the clutch and it goes away.
I notice worn Sliders and shift forks sound like Rattling cans.
I notice worn Sliders and shift forks sound like Rattling cans.
Thank you for the input. The thing is, the rattle is still there even when the clutch pedal is pressed in. I can here a little bit of throw out bearing noise and that noise does go away once i push the clutch in. not the rattle however. I took a video this weekend. hopefully this will help more than just a typed description. http://www.youtube.com/watch?v=kfxXZ...ature=youtu.be
Did your noise sound anything like the one in the video i posted?
Anyone else have suggestions or comments on the culprit?
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Joined: Dec 2012
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From: Brisbane, Australia
After reading through this thread and others about this noise, some of the sypmtoms described match with a problem i'm having. any input would be apreciated. i bought my evo in february with 72xxx mile, and noiseless. a month after owning the car i did a transmission fluid change using Amsoil. about a month after that one night while driving i noticed a rattling was coming from my car. as for the symptoms of the noise, its very audible on a cold start, but after it gets warm the noise is gone, at idle. if however i rev it over 2000 rpm the rattle comes back and diminishes with rpms, reaching idle, the noise is gone. with the clutch pedal pressed in all the way and a little rev, the exact same noise happens. for the most annoying part about it, no matter what gear im driving in, if i coast to a stop or coast in general in gear, the second i take my foot off the gas the rattle comes back. if i slightly press on the gas it goes away. and if i put the clutch in when i'm coasting, the rattle declines with the rpms. any help and input would be greatly appreciated. I attempted to take a video clip with my gopro, but all i got was a bunch of wind. thanks again.
I too want to join the bandwagon of people experiencing an aggressive vibration coming from the center/front (transmission) area of the car during deceleration. It's most prominent at about 3500rpm.
After trolling youtube and checking all videos posted on this thread I can say that my noise seems to be alot louder/more aggressive than what some others have described. It's hard to scope through video/PC speakers though.
The noise that is being made only during heavy/constant deceleration does sound like others have described: A can full of rocks or grinding (I would even say 'chafing') of something that's spinning/rotating quickly. At first I thought it might have been my flywheel going bad because because the feel, sound and position of the vibration not to mention that the noise disappears when the clutch is engaged but after doing some more research and reading up here hearing others experiencing the same thing I'm almost certain it's going to be the input shaft bearing.
My plan of attack (Thanks to xXANCHORMONXx and many others advice) is to first refill the transfer case fluid (I mean it's worth a shot, right) and if nothing improves there I will jack the car up and attempt to spot a loose/damaged input shaft bearing and go from there $$$.
Will attempt to take a video of the rumbling i'm getting and will let everyone know. Thanks for all the input so far.
PS, this video almost has me convinced: (Yes it's a civic trans but symptoms are the same
).
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