Auto Transmission Leak - Hot Rod Forum : Hotrodders Bulletin Board
Hotrodders.com -- Hot Rod Forum



Register FAQ Search Today's Posts Unanswered Posts Auto Escrow Insurance Auto Loans
Hot Rod Forum : Hotrodders Bulletin Board > Tech Help> Transmission - Rearend
User Name
Password
lost password?   |   register now

Reply
 
LinkBack Thread Tools
  #1 (permalink)  
Old 05-01-2011, 08:25 AM
Registered User
 
Join Date: May 2011
Location: Boynton Beach Florida
Posts: 4
Wiki Edits: 0

Thanks: 0
Thanked 0 Times in 0 Posts
Auto Transmission Leak

Hi everyone
Need some HELP.
Have a 1985 chev c10 pu ,chopped,pro streeted 454 tri power ,TH 350 trans.
Lately as it sits in garage between car shows trans fluid leaks out trans yoke onto front universal joint. I took yoke off and JB welded the cap thats pressed into yoke,leak stopped for 1 week,now leaking again
I was a GM tech for 20 years but never did alot of AT,4 speeds and ring and pinions was my good points

    Advertisement
Reply With Quote Quick reply to this message
Sponsored Links
Advertisement
 
  #2 (permalink)  
Old 05-01-2011, 09:44 AM
454 Rattler's Avatar
NEVER SATISFIED !!
 
Last photo:
Join Date: Sep 2006
Location: Eagle River WI.
Age: 70
Posts: 944
Wiki Edits: 0

Thanks: 20
Thanked 51 Times in 46 Posts
Welcome to HR.com, Rat Ron.

Glad to have you here. Someone is going to give you a solution, I'm sure.

I always thought my th350 was just marking it's territory.

I was never able to make it stop till I installed a 200r4 trans.

Good luck.


454 RATTLER
Reply With Quote Quick reply to this message
  #3 (permalink)  
Old 05-01-2011, 04:56 PM
SSedan64's Avatar
Registered User
 
Last photo:
Join Date: Dec 2007
Location: Macon, GA.
Age: 50
Posts: 6,016
Wiki Edits: 0

Thanks: 0
Thanked 46 Times in 46 Posts
Could try Tapping the vent hole & installing a small Set Screw. Would have to remove the Yoke from Driveshaft again. JB probably didn't stick well.
Is the Rear Seal & Bushing in good shape?
Reply With Quote Quick reply to this message
  #4 (permalink)  
Old 05-02-2011, 07:42 AM
Registered User
 
Join Date: May 2011
Location: Boynton Beach Florida
Posts: 4
Wiki Edits: 0

Thanks: 0
Thanked 0 Times in 0 Posts
TH 350 Trans leak

Thank you for getting back to me
No leak from rear trans seal. I took yoke back off and JB weld is ok.
Looks like oil coming out of vent hole in yoke,wich I can plugg.QUESTION that bothers me,is I've owned truck for 25 years and it never leaked before,why now coming out yoke. I didnt think that much trans fluid could be in tailshaft housing,nothing back there but speedo gear.
Reply With Quote Quick reply to this message
  #5 (permalink)  
Old 05-02-2011, 11:43 AM
Mr.NutCase's Avatar
Member
 
Last photo:
Join Date: Apr 2005
Location: Chicago
Age: 25
Posts: 161
Wiki Edits: 0

Thanks: 0
Thanked 1 Time in 1 Post
Check extension housing bushings...
Replacing just the seal is wrong thing to do.
Fix the problem,not the symptom..
Reply With Quote Quick reply to this message
  #6 (permalink)  
Old 05-02-2011, 12:56 PM
Registered User
 
Join Date: May 2011
Location: Boynton Beach Florida
Posts: 4
Wiki Edits: 0

Thanks: 0
Thanked 0 Times in 0 Posts
Trans leak

Thanke for reply Mr NUTCASE
Seal NOT leaking,trans fluid coming out front driveshaft YOKE VENT HOLE
Reply With Quote Quick reply to this message
  #7 (permalink)  
Old 05-03-2011, 10:20 AM
SSedan64's Avatar
Registered User
 
Last photo:
Join Date: Dec 2007
Location: Macon, GA.
Age: 50
Posts: 6,016
Wiki Edits: 0

Thanks: 0
Thanked 46 Times in 46 Posts
May be worth checking the Trans Case Vent Tube>> http://media.photobucket.com/image/r...TH350-vent.jpg Dirt Dabbers can plug them up.

When the Engine's running the fluid level is even with Pan mounting surface & pressure can escape out the Dipstick tube. More so if the fluid level is slightly low.
When the vehicle sets the fluid in the TC/TorqueConverter drains back into the Pan raising the level much higher and pressure buildup may be pushing it out the Yoke vent. Maybe, maybe not. Easy to check anyway.

Todd
Reply With Quote Quick reply to this message
  #8 (permalink)  
Old 05-05-2011, 12:32 PM
Registered User
 
Join Date: May 2011
Location: Boynton Beach Florida
Posts: 4
Wiki Edits: 0

Thanks: 0
Thanked 0 Times in 0 Posts
Trans leak

Thanks for info SSEDAN64
I know coverter drains back and level goes up. I pulled yoke off JB weld was ok so I drilled and tapped hole,installed screw,and JB over it.I put back in truck ,but raining here so wont take for a ride yet.
I ckecked vent,it was OK.
Let you know how I make out
Reply With Quote Quick reply to this message
  #9 (permalink)  
Old 05-25-2012, 05:20 PM
Registered User
 
Join Date: Dec 2011
Location: Pennsylvania
Posts: 6
Wiki Edits: 0

Thanks: 0
Thanked 0 Times in 0 Posts
There's an oring that goes in the yoke it probably finally broke apart after all those years thus now its leaking get from the dealership or go to autozone or advanced or whatever for just a plain oring kit with a bunch
Reply With Quote Quick reply to this message

Recent Transmission - Rearend posts with photos

Quick Reply
Message:
Options

Register Now

In order to be able to post messages on the Hot Rod Forum : Hotrodders Bulletin Board forums, you must first register.
Please enter your desired user name (usually not your first and last 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:

Log-in

Human Verification

In order to verify that you are a human and not a spam bot, please enter the answer into the following box below based on the instructions contained in the graphic.




Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools

Posting Rules
You may post new threads
You may 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


Similar Threads
Thread Thread Starter Forum Replies Last Post
Auto transmission leak at speedometer cable HotRodMan Transmission - Rearend 3 04-11-2011 08:07 PM
Oil leak 350 Transmission Richard O Transmission - Rearend 1 04-05-2010 03:07 AM
transmission leak: paulie64 Transmission - Rearend 5 10-07-2008 04:39 PM
Transmission Leak EazyDuzIt102 Transmission - Rearend 5 08-13-2006 08:18 PM
what transmission goes on a 302 auto??/ acself03 Transmission - Rearend 3 04-10-2006 12:46 AM


All times are GMT -6. The time now is 08:44 PM.


Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2014, vBulletin Solutions, Inc.
Search Engine Optimization by vBSEO 3.6.0 PL2
Copyright Hotrodders.com 1999 - 2012. All Rights Reserved.