Thread: Input Shaft Bearing

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2009-01-25 19:41:37

Will

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Input Shaft Bearing

After my car gets nice and warmed up, I am hearing a sort of grinding noise from the engine bay. It goes away when I push in the clutch and engage the TOB. Is this almost surely my transmission input shaft bearing? if so, do I have to pull the whole tranny apart to replace it? or just drop the tranny and do it in the bellhousing?

I can't go to the convention with this issue...

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White '92 NX2000 - JWT PP & B15 Disk, Hypercoil Gen2 damped by Koni Yellow Sports NX Thread

Black '95 200sx SE-R T28 Turbo Lowport 286whp/245wtq 12.306 @ 113.55 200sx Thread

Originally Posted by wnwright
I'm sorry I'm an engineer. I'm looking at the math.

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2009-01-25 19:43:51

TheRealNighthog Online/offline status of TheRealNighthog is unknown

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Sounds like a bad TOB to me. I had the same problem and that is what it was.

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Originally Posted by Shawn
Dammit. I thought that birthday equation worked in my favor.

I musta forgot.....early onset of senility.....too many drugs and concussions........

Give us another twenty years and we'll be racing at Conventions. In our wheelchairs.

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2009-01-25 19:55:12

Will

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How would it be the TOB if the sound only happens when the TOB is NOT engaged, and goes away when it IS engaged.

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White '92 NX2000 - JWT PP & B15 Disk, Hypercoil Gen2 damped by Koni Yellow Sports NX Thread

Black '95 200sx SE-R T28 Turbo Lowport 286whp/245wtq 12.306 @ 113.55 200sx Thread

Originally Posted by wnwright
I'm sorry I'm an engineer. I'm looking at the math.

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2009-01-25 20:02:34

TheRealNighthog Online/offline status of TheRealNighthog is unknown

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Oh I read it wrong. My bad.

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2009-01-25 20:17:19

Will

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Originally Posted by TheRealNighthog

Oh I read it wrong. My bad.

NP, just trying to clarify

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White '92 NX2000 - JWT PP & B15 Disk, Hypercoil Gen2 damped by Koni Yellow Sports NX Thread

Black '95 200sx SE-R T28 Turbo Lowport 286whp/245wtq 12.306 @ 113.55 200sx Thread

Originally Posted by wnwright
I'm sorry I'm an engineer. I'm looking at the math.

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2009-01-25 20:25:30

Vadim

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How's your clutch cable doing? Check it to make sure that it's not overtightened. It might be causing the TOB to be 1/4 engaged, and when you press the clutch pedal it goes away because it becomes fully engaged.

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2009-01-25 20:33:45

Will

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Originally Posted by Vadim

good call. I will try a little looser and see if that helps.

Any more advice guys?

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White '92 NX2000 - JWT PP & B15 Disk, Hypercoil Gen2 damped by Koni Yellow Sports NX Thread

Black '95 200sx SE-R T28 Turbo Lowport 286whp/245wtq 12.306 @ 113.55 200sx Thread

Originally Posted by wnwright
I'm sorry I'm an engineer. I'm looking at the math.

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2009-01-25 22:18:33

HKS P10 GT Online/offline status of HKS P10 GT is unknown

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Originally Posted by Will

How would it be the TOB if the sound only happens when the TOB is NOT engaged, and goes away when it IS engaged.

..... my mothers v6 eclipse gt makes noise when clutch isnt in... when th peddle is pushd in it goes away..

Throw out bearing, an worn don pressure plate is her problem... sounds like u got the same situation

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2009-01-26 13:30:47

Old guy

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In order to replace the input shaft bearing, you need to split the case and remove all of the gear stacks from the front half. The bearing is under a retainer.

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2011-11-01 19:00:44

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MR-4Door-SR20DET Online/offline status of MR-4Door-SR20DET is unknown

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Bump for my problem I believe

Originally Posted by Old
In order to replace the input shaft bearing, you need to split the case and remove all of the gear stacks from the front half. The bearing is under a retainer.

^If this is the case, I'm just going to put in my spare tranny and sell my 'currently' noisey one for cheap. Not sure I want to do all of this. I have a fresh VE swap that only has about 100 miles or so on it and the tranmssion only makes noise when the clutch pedal is 'not' pressed in. It goes away soon as I press it. I noticed it getting a little noise after church this past Sunday. After doing some more searching on the OG forum, it sounds like it is my input shaft bearing. Do we have a how to for this?

------------------From the OG forum below------------------

Originally Posted by wildmane
Input shaft bearing, I know because I have the same issue and have been running for months like this. It's not that big of an issue, I mean I know the noise sucks and all but according to a local tech the tranny will last for a long time even without replacing the bearing. So it's a low priority fix, but still something you should attend to eventually.

Originally Posted by Daniel
Thanx for this topic, dealing with this same noise for a few weeks now.

Originally Posted by coryb13ser
i have the same noise.... its the tranny. ive had 2 diff clutch set ups in the car with the same tranny and its always made this noise. not sure exactly what it is, as of yet.

Originally Posted by wildmane
If it goes away when the clutch pedal is pushed in then I can guarantee you it's the input shaft bearing.

^Ok, all of this is saying it is the input shaft bearing. My TOB only has about 100 miles on it, and the shaft was greased very well. I'm guessing I need to replace this bearing. Who has done it and what all is invovled?

Last edited by MR-4Door-SR20DET on 2011-11-01 at 19-47-26.

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Originally Posted by SR20GTi-R

NA is a thinking man's game, alot of people dont have the stomach to play NA.

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