Whine

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Ironmike

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Hi guys! Doing an engine refresh, so thought it'd be a good time to check out a bit of a whine I had occasionally.

Always the same scenario. Car cold, put in reverse or first...and just as I let the clutch out I would hear a whining sound. Goes away in a minute and won't do it again until the car has sat overnight.

Thought it might be the pilot bushing, or throwout bearing, but everything LOOKS great.

Any thoughts?
 
I used to hear a whine in my car...


It went away after my divorce....
 
It could also be the lower ratio in first and reverse. Perfectly normal to get a whine in those two gears.
 
Thanks! I'm figuring a warm up issue, too. Think I'm gonna use the roller bearing type pilot bearing this time. Just for good measure.
 
RustyRatRod said:
It could also be the lower ratio in first and reverse. Perfectly normal to get a whine in those two gears.
Click to expand...

Likely this ^^^^. My trans whines more in reverse.
Does it whine as you are moving with the your clutch fully engaged? trans I'd think
Or does it just whine as you let the clutch slip? pilot or release bearing would be suspect
Both could quiet down after things "warm up".

I did see in a thread someone warning of input shaft wear from the rollers. I've never installed a roller myself so I have no real experience with them.
 
I think it's the other end. The pilot bearing, if it has a bearing and not a bushing. While the clutch pedal is depressed and partially depressed, the bearing is spinning. When it is released completely, the input shaft and crank shaft are turning as one and the pilot bearing would stop making noise. The throw out bearing on the other hand, spins constantly.

I guess it could be argued either way, because the throw out bearing is under more load while the clutch pedal is depressed. I think it's a good bet that it's one or the other.
 
daliant said:
Probably the grease in the throw out bearing starting to go dry.
Click to expand...
Do the throw out bearings have a zerk fitting? I just started to have (what I believe) the same whine noise. I hear it in reverse and in 1st gear.
I remember greasing throw out bearings on big rigs as a kid working on my family's truck yard. Not sure if the 833's are the same.

thanks
danny
 
If you set the freeplay right, the TOB shouldnt be spinning. At least mine doesnt. And a dry TOB wont howl for long.After a bit it makes other noises.
The pilot bushing is oilite. It will make noises if it seizes on the input shaft. Doesnt happen often. They also make a noise with excessive clearance. I wouldnt call it a whine though.
Reverse gear often make a whining noise.But the noise stays as long as the vehicle is moving
-Take the tranny down, replace them both, problem solved.
 
krazykuda said:
I used to hear a whine in my car...


It went away after my divorce....
Click to expand...

Now thats Funny :D Had the same problem about 25 years ago and same cure!

On serious side stick cars with heavy clutches put a lot of stress on throw out bearing and thrust bearing.
 
It's all just a big guess unless we know exactly when the whine starts and stops.

Just as the clutch is starting to contact the flywheel, or before?
Just as the trans starts to turn and the car is starting to move?
Does it do it when cold with the clutch already pressed while you start it?
Does it do when when cold and you sart it in gear with the clutch in?
How about right after you start it, then shut it off and restart does it do it again?

See what I mean?
It can be narrowed quite a bit knowing these answers.
 
TrailBeast said:
It's all just a big guess unless we know exactly when the whine starts and stops.

Just as the clutch is starting to contact the flywheel, or before?
Just as the trans starts to turn and the car is starting to move?
Does it do it when cold with the clutch already pressed while you start it?
Does it do when when cold and you sart it in gear with the clutch in?
How about right after you start it, then shut it off and restart does it do it again?

See what I mean?
It can be narrowed quite a bit knowing these answers.
Click to expand...

I'll do the best I can:
Just as the clutch is starting to contact the flywheel, or before?
As it's starting to contact
Just as the trans starts to turn and the car is starting to move?
Yes
Does it do it when cold with the clutch already pressed while you start it?
I don't hear it when starting the engine and clutch engaged.
Does it do when when cold and you start it in gear with the clutch in?
I have not tried this
How about right after you start it, then shut it off and restart does it do it again?
Have not tried this.

Sorry I could not answer a few. This just popped up and I found this thread in a search.
 
equium said:
I'll do the best I can:
Just as the clutch is starting to contact the flywheel, or before?
As it's starting to contact
Just as the trans starts to turn and the car is starting to move?
Yes
Does it do it when cold with the clutch already pressed while you start it?
I don't hear it when starting the engine and clutch engaged.
Does it do when when cold and you start it in gear with the clutch in?
I have not tried this
How about right after you start it, then shut it off and restart does it do it again?
Have not tried this.

Sorry I could not answer a few. This just popped up and I found this thread in a search.
Click to expand...

Do you mean right as the clutch starts to engage and the cars isn't moving yet?
Right as they are contacting each other, the pilot and throwout bearings are the only things running.
If this is the case it has to be one or the other.

New clutch? (they do whine when new right as they contact each other due to new unmatched surfaces)

Actually I was answering the OP, but it may apply.
 
TrailBeast said:
Do you mean right as the clutch starts to engage and the cars isn't moving yet?
Right as they are contacting each other, the pilot and throwout bearings are the only things running.
If this is the case it has to be one or the other.

New clutch? (they do whine when new right as they contact each other due to new unmatched surfaces)

Actually I was answering the OP, but it may apply.
Click to expand...
I don't think it's a new clutch. I can contact the PO and ask.
Yes, right as the clutch starts to engage and before the car starts to move.
If I'm dropping it, I'll replace the TOB and the Pilot.
(sorry to have hijacked this thread; but it's better than a duplicate one, lol)
 
equium said:
I don't think it's a new clutch. I can contact the PO and ask.
Yes, right as the clutch starts to engage and before the car starts to move.
If I'm dropping it, I'll replace the TOB and the Pilot.
(sorry to have hijacked this thread; but it's better than a duplicate one, lol)
Click to expand...

Well in your case it would have to be the pilot, TO, or a new clutch that hasn't worn in yet.

(A new one is best actually, becuase people who answer might not give an answer that is specific to the problem)
In other words, you could end up doing a bunch of unnecesary stuff.
 
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