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Forum nameManual Trans - NV-T350
Topic subjectTranny problem with rolling when not in gear
Topic URLhttp://forums.2gnt.com/dcboard.php?az=show_topic&forum=34&topic_id=7118
7118, Tranny problem with rolling when not in gear
Posted by bzoss, Dec-31-69 06:00 PM
Okay, I hope that I can explain this so that there is no confusion. First off, I have that strange sort of rubbing/whinning noise coming from my transmission, and have had it for about four years now. I have read many threads that say just to ignore it. I also have seen some people say that it is the throw out bearing. Since the noise started, I have put in two clutches and two throwout bearings. I can assure you that it is not the throwout bearing. The noise persists the same with each replacement.
Secondly, and this is what is the interesting part... I was leaking some oil, so I put my car on jacks and started her up so I could locate the leak. To my suprise, with the car in neutral (5-speed) the wheels would turn. I could stop them from turning with my hand, so there was not a lot of power transfer, but there was some. I think that his is what is causing the noise. Somewhere in the tranny something is rubbing causing some power to be transferred to the wheels, causing the noise along the way.

Has anyone experienced this before? If so, what was the diagnosis, and what was the extent of the damage.

I should also note, that the noise goes away as the tranny warms up, as well as it seems to drive just fine. Goes in and out of gear smoothly as it should for having 125,000 miles.

Thanks for the help in advance. I hope that I explained everything so that you can understand it all.
7119, RE: Tranny problem with rolling when not in gear
Posted by Star Turbo Talon, Dec-31-69 06:00 PM
The wheels movign is somewhat normal. Its the synchro's dragging on the gears causing the wheels to move.

Whining could be a bearing going bad. Have you checked to see if there is enough trans fluid in the trans.
7122, RE: Tranny problem with rolling when not in gear
Posted by bzoss, Dec-31-69 06:00 PM
Yes, there is enough fluid. It has been doing it for a while, even with transmission flush, new fluid etc. I have never put the 'recommended' fluid in there however. But it started doing it before I changed the fluid. Anyhow, I use some synthetic mobile 1 stuff that is pretty awesome, but again not what is recommended. I was thinking about going back to the original NVT350 fluid just to show that at least there is the right fluid in there.
Anyhow, it drives fine. I talked to a few other fellas today who said that the wheels rolling is normal also. I guess you do learn something every day. I think that I am just going to pick up a new transmission from the local junk yard. Build it up, then just wait until this one takes a crap on me to swap them out.

Thanks for the advice though.

Brandon
7130, RE: Tranny problem with rolling when not in gear
Posted by DytDSM, Dec-31-69 06:00 PM
Im having this problem in my brothers car. We just put a new motor in and when we started it i noticed the wheels were spinning. The passenger side was spinning faster than the drivers side. Is this something to be worried about or is it fine. I cant find anything about this problem anywhere except this post so i dont really know what my options are.
7131, RE: Tranny problem with rolling when not in gear
Posted by DarkOne, Dec-31-69 06:00 PM
Originally posted by DytDSM
Im having this problem in my brothers car. We just put a new motor in and when we started it i noticed the wheels were spinning. The passenger side was spinning faster than the drivers side. Is this something to be worried about or is it fine. I cant find anything about this problem anywhere except this post so i dont really know what my options are.


Normal.

The noise the OP is complaining about is likely just gear whine, which is relatively normal as well. I wouldn't worry about it.
7132, RE: Tranny problem with rolling when not in gear
Posted by RoninEclipse2G, Dec-31-69 06:00 PM
as long as the noise goes away once the trans warms up I wouldn't worry since it's been doing it for years and hasn't caused any issues. if it gets louder or more noticable even when the trans is warmed then you want to worry.
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