I am desperate for help with this before I go out and spend money on bearings that are perfectly ok. Here is the deal. My tranny has a really obnoxcious whirring noise. Already replaced the throwout bearing and pilot bearing. Oh yeah, it is a 97 JDM type r tranny engine set up in a 92 eg hatch. Anyhow, the noise has been reduced but not completely so there must be something else that is wrong. I put the car up on a lift and ran it through the gears. In first the noise is barely audible. In second it gets a little bit louder, third is louder still, fourth is even louder and fifth is the loudest. Also the noise gets louder in every gear as throttle is increased. Also, the moment the clutch is depressed the noise completely stops regardelss of what gear you are in or how fast the engine is spinning. The tranny is out my car now and I will crack it open tonight. Anybody dealt with similar probelms or have a suspicion of what bearing it is based on the description given. Any help I can get would be greatly appreciated. This is my first time posting on this site, I am ussually on hybrid forum but they have not been very helpful or willing to respond as of lately. Thanks a million.

 

I am having a similar type problem with my D-series tranny..sort-of. Under acceleration and cruising there is no noise. Let off (ie. coast) and there is a loud metal-metal rubbing noise (sort-of like gear whine). Push clutch in and it stops. Throw-out bearing is new. I read another post and a guy said his made similar noise when the mainshaft bearing went out.

Soup **** has a similar problem in his ITR but hasn't diagnosed it yet either.

 

so, if you are rolling down the road at 20 mph,
and you push the clutch pedal in,
the noise stops?

while the tranny is still in motion internally... because the axles are connected to the tranny directly...

sounds like a flywheel bearing (pilot bearing yes?)

 

I could be rolling down the road at 80 mph, 30 mph, 20 mph, whatever, the moment the clutch is pushed in the noise stops. But unlike the guy with d16 tranny problem my noise is only under light load. the moment i let off the throttle compeltely you can't really hear while driving. You can still hear it if your under the car while it is on jack stands though. Anyway, the noise gets more intense in every gear and with more throttle. goes away completely with cltuch depressed and the noise is reduced considerably when off the throttle. Could it be becasue when the clutch is depressed the mainshaft is disconnected from the flywheel and the bearing is no longer under any load to make it whine. But if this is the case why does the noise almost disappear when iget off the throttle and let the car coast in gear. This would lead me to believe it is a differential bearing. i am stumped. mroe help please.

 

Yours sounds like a final drive issue. Is the noise in all gears?

 

already replaced the pilot bearing.

 

Noise is in 2-5th...or at least not audible in 1st.

 

exactly. you can hear it in first if you take it up higher in the revs.

 

got the same prob
its the input shaft bearing, also known as the main shaft bearing i believe
people say its not hard to replace, just get a helms

 

Yeh, I'd say it's the mainshaft bearing they get lube usually by splash only. When you push the clutch in, the mainshaft stops turning and that's why the sound goes away. If you push the clutch in and you get a grinding sound it's usually the throwout bearing since it is now loaded.

Give me a call if you need pricing on rebuild kits.