Transmission noise - 85 CJ7 T176/Dana300 - Off-Road Forums & Discussion Groups
Jeep-Short Wheelbase All discussion of short wheelbase Jeeps: CJ, TJ, YJ and JK

 
LinkBack Thread Tools Display Modes
post #1 of (permalink) Old 07-25-2002, 12:29 PM
**DONOTDELETE**
Guest
 
Posts: n/a
Transmission noise - 85 CJ7 T176/Dana300

Hi all,

I have a grinding noise when the clutch pedal is NOT pressed. When I engage the clutch the sound goes away. Could this be a throughout bearing? If it is the throughout bearing I guess I would have to drop the tranny, correct?

Any help would be greatly appreciated.

John
Sponsored Links
Advertisement
 
post #2 of (permalink) Old 07-25-2002, 07:02 PM
I Might Just Know What I'm Talking About
 
Join Date: Jan 2000
Location: Charleston, South Carolina
Posts: 1,848
Thanks: 0
Thanked 0 Times in 0 Posts
 
Re: Transmission noise - 85 CJ7 T176/Dana300

Well... that's a pretty vague question. But I'd say your diagnosis is correct. Throwout bearing.. needs thrown out. And yes, you'll have to drop the tranny. But prepare to replace clutch and pressure plate while you are there. It's a real pain to drop that tranny, you don't want to do it again if you don't have to.

There are other things that create a noise when the clutch pedal is OUT. But that bearing is most likely the culprit.
IN2DEEP is offline  
post #3 of (permalink) Old 07-25-2002, 07:09 PM
**DONOTDELETE**
Guest
 
Posts: n/a
Re: Transmission noise - 85 CJ7 T176/Dana300

NO, it most likely can't be the throwout bearing, that only makes noise when the pedal is depressed. Sure, there is the chance of a totally dry bearing making noise when it is just sitting there, but not a very loud noise. Noise with partial pedal, say an inch or so means pilot bushing. But, I'd say from experience with a noise like that that what you have is input shaft bearing going out in the trans, the load is taken off of it when you disengage the clutch.
Sponsored Links
Advertisement
 
post #4 of (permalink) Old 07-25-2002, 07:18 PM
 
Join Date: Jun 2001
Posts: 1,705
Thanks: 0
Thanked 0 Times in 0 Posts
 
Re: Transmission noise - 85 CJ7 T176/Dana300

Input shaft bearing. I bet you can hear it in every gear but fourth. Had the same problem with mine too.

The only time a throwout bearing makes noise is while the clutch is being depressed/released and when the clutch is disengaged. When the clutch is engaged, the throwout bearing is idle.
AllLockedUp is offline  
Sponsored Links
Advertisement
 
Reply

Quick Reply
Message:
Options

Register Now



In order to be able to post messages on the Off-Road Forums & Discussion Groups forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.

User Name:
Password
Please enter a password for your user account. Note that passwords are case-sensitive.

Password:


Confirm Password:
Email Address
Please enter a valid email address for yourself.

Email Address:
OR

Log-in










Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page
Display Modes
Linear Mode Linear Mode



Posting Rules  
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On

 
For the best viewing experience please update your browser to Google Chrome