Talk About Network

Google


Register and Login
Nick
Password
Register create new account Sign up is FREE and you can post replies, new topics, bookmark posts and more!
Recover lost password


Autos - Cars > Nissan - Maxima > Re: Transmissio...
Latest [ Topics | Posts ] Archive Post A New Topic Post a Reply
<< Topic < Post Post 4 of 7 Topic 4396 of 4505
Post > Topic >>

Re: Transmission noise after left drive axle CV boot replacement

by George <not.real@[EMAIL PROTECTED] > Dec 5, 2007 at 12:26 AM

In article <_Yb5j.442$g26.241@[EMAIL PROTECTED]
>,
 Codifus <codifus@[EMAIL PROTECTED]
> wrote:

> David Geesaman wrote:
> > George wrote:
> > 
> >> Before I could get under way, I noticed a metallic rubbing sound 
> >> coming from the transmission while still in neutral (I have a 5-speed

> >> manual.) When the clutch is *in* I don't get the sound, but when it
is 
> >> *out* (engaged) I get it quite loudly. Don't forget, this is all
while 
> >> in neutral! I never ****fted into first, and did not move the car.
> > 
> > 
> > These sounds are typical of a bad input shaft bearing.  It typically 
> > doesn't start happening all at once, and usually most when the tranny
is 
> > cold.  When in neutral, clutch out, the input shaft and a couple of 
> > gears are the only things turning.
> > 
> > Could it be that you turned off the radio and just started to notice
it?

No, the sound started after my work. I am highly tuned-in to expensive 
noises. I wonder if is possible to damage that bearing doing a drive 
axle R&R?

> > Did you happen to start the car while the front end was lifted?  Did
you 
> > drain any tranny oil and not replace it?

Did not start the car until I was done and the car was back on the 
ground. Did not drain the tranny because I was not trying to remove the 
axle. If it slipped out it was only because of a ham-fisted accident on 
my part disassembling and reassembling the CV joint on-car.

> > If you put the clutch in, the input shaft disengages from the engine
and 
> > coasts to a stop and the noise goes away.  When you drive, the load
from 
> > the me****ng gears pushes the bearings tight and they don't tend to be
as 
> > noisy.

Sounds obvious when put that way! I have rebuilt engines, but 
transmission internals were never my area of expertise, least of all 
manual transmissions.

> > I'm not sure what in your procedure would have caused input shaft 
> > problems, but your symptoms are solidly pointed towards bad input
shaft 
> > bearings.
> > 
> > Dave
> I would also re-emphasize the tranny oil. Surely some fell out when you 
> removed the axle. Did you make sure to refill?

No oil leaked out, looked under the car every day now and saw nothing. 
In fairness, I believe from other sources on the internet that draining 
the transmission is not a requirement for axle R&R (at least on a 
5-speed) so it's possible fluid doesn't come out. I know, it sounds 
strange to me, too.

I haven't done anything to the car since Saturday night. Have an idea...

I tried to drive the car just now, but I let the clutch out in drive and 
reverse and got the same noise as before. Furthermore THE CAR DIDN'T 
MOVE. Couldn't go. However the speedometer showed I was moving after I 
let the clutch out in gear! I tried up to about 10MPH.

I guess now that the axle must be not engaged into the transmission at 
all and I must have an open diff. Saturday I am going to try to remove 
and reinstall that axle, see what happens. I really messed up the 
threads for the axle nut by hammering and the CV joint was kind of ugly 
and greaseless so I'll just get a new axle (they are under $100) and try 
again.

I have scoured the internet and cannot get good info on this problem. 
Axle removals/installs are common but not my exact problem.

I will post back this weekend if it doesn't snow and I can work on the 
car. I will check this NG daily. Thanks for the input!

BTW, I cannot see the post from David Geesman, only the part quoted by 
Codifus. Don't have any explanation for that unless David's posts don't 
get to Verizon's news server.
 




 7 Posts in Topic:
Transmission noise after left drive axle CV boot replacement
George <not.real@[EMAI  2007-12-02 05:36:35 
Re: Transmission noise after left drive axle CV boot replacement
David Geesaman <dgeesa  2007-12-03 22:37:02 
Re: Transmission noise after left drive axle CV boot replacement
Codifus <codifus@[EMAI  2007-12-04 07:44:42 
Re: Transmission noise after left drive axle CV boot replacement
George <not.real@[EMAI  2007-12-05 00:26:05 
Re: Transmission noise after left drive axle CV boot replacement
"cmdrdata" <  2007-12-05 13:44:32 
Re: Transmission noise after left drive axle CV boot replacement
George <not.real@[EMAI  2007-12-06 23:05:09 
Re: Transmission noise after left drive axle CV boot replacement
George <not.real@[EMAI  2007-12-20 21:02:21 

Post A Reply:
  Go here to Signup

AddThis Feed Button


About - Advertising - Contact - Frequently Asked Questions - Privacy Policy - Terms of Use - Signup

Contact
tan13V112 Thu Jul 24 3:25:55 CDT 2008.