TH200 vent - 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 04-02-2006, 04:04 PM
Registered User
 
Join Date: Nov 2005
Location: NC
Posts: 154
Wiki Edits: 0

Thanks: 0
Thanked 0 Times in 0 Posts
TH200 vent

Where is the vent located on the THM 200? I just had a second rear seal leak. The seal was replaced not long ago, so I want to make sure it's not building up pressure before this new seal leaks.

Thanks,
-Michael

    Advertisement
Reply With Quote Quick reply to this message
Sponsored Links
Advertisement
 
  #2 (permalink)  
Old 04-02-2006, 07:38 PM
Registered User
 
Join Date: Jan 2005
Location: Brookfield, WI
Age: 53
Posts: 499
Wiki Edits: 0

Thanks: 0
Thanked 0 Times in 0 Posts
Depends on the model T200. Some are in extension housing/tail section, some are at top of case behind the pump area.
Reply With Quote Quick reply to this message
  #3 (permalink)  
Old 04-02-2006, 10:01 PM
Crosley's Avatar
Hotrodders.com Moderator
 
Last wiki edit: T-350 rebuild tech
Last journal entry: Bar under the dash
Last photo:
Join Date: Nov 2002
Location: ... USA
Posts: 8,082
Wiki Edits: 1659

Thanks: 328
Thanked 99 Times in 95 Posts
If the rear case seal for the drive shaft yoke is leaking 'again"...... did you replace the bushing in the tail of the case when the seal was replaced?
__________________
Some people are like Slinkies... Not really good for anything, but they still bring a smile to your face when you push them down a flight of stairs.
Reply With Quote Quick reply to this message
  #4 (permalink)  
Old 04-03-2006, 08:13 AM
Registered User
 
Join Date: Nov 2005
Location: NC
Posts: 154
Wiki Edits: 0

Thanks: 0
Thanked 0 Times in 0 Posts
I didn't even think of the bushing. The first time I had all the seals done at a trans shop, I was in a hurry and needed to use the car. That was about a year ago, no more than 10k miles.

This time when I pulled the drive shaft off, I did notice play in the trans output shaft. There was maybe 1/8" movement in all directions. How difficult is it to replace that rear bushing (can it be done on the car)?

BTW, this is a THM 200C trans.
Reply With Quote Quick reply to this message
  #5 (permalink)  
Old 04-03-2006, 07:07 PM
Registered User
 
Join Date: Jan 2005
Location: Brookfield, WI
Age: 53
Posts: 499
Wiki Edits: 0

Thanks: 0
Thanked 0 Times in 0 Posts
The output shaft of the T200 WILL move a bunch when there is no yoke in the trans. The rear bushing supports the yoke along with the output shaft.
Crosley wants you to check for bushing wear in the area the yoke contacts the bushing. The yoke must be smooth and not worn down on the diameter.
A trans shop can replace the bushing (in the car) IF they still have the extractor and installation tools
Reply With Quote Quick reply to this message
  #6 (permalink)  
Old 04-03-2006, 07:53 PM
Crosley's Avatar
Hotrodders.com Moderator
 
Last wiki edit: T-350 rebuild tech
Last journal entry: Bar under the dash
Last photo:
Join Date: Nov 2002
Location: ... USA
Posts: 8,082
Wiki Edits: 1659

Thanks: 328
Thanked 99 Times in 95 Posts
as Chazmac points out the output shaft will move around with no yoke in there. normal for a t-200.

An extractor tool is needed to change out the bushing since the t-200 does not have a removable tail housing.

Most of us old fart tranny guys have at least one GM bushing extractor tool around.
__________________
Some people are like Slinkies... Not really good for anything, but they still bring a smile to your face when you push them down a flight of stairs.
Reply With Quote Quick reply to this message
  #7 (permalink)  
Old 04-04-2006, 03:02 PM
Registered User
 
Join Date: Nov 2005
Location: NC
Posts: 154
Wiki Edits: 0

Thanks: 0
Thanked 0 Times in 0 Posts
Okay, I understand now. I checked on the yolk now that it's back in the trans, there's no play. There was no noticable wear on the yolk except where the old seal had been. I gave it a light polish with 4-0 steel wool before reinstalling it.

The new seal is a bit different than the old spring loaded seal I pulled out. It looks like it is sealing on a new section of the yolk, so I hope this one stays leak free!
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:
If you do not want to register, fill this field only and the name will be used as user name for your post.
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
Motorized cowel vent? genr8rs Body - Exterior 1 03-23-2006 09:25 PM
55 2nd series cowl vent gator412 Body - Exterior 3 02-28-2006 05:47 PM
Rearend Vent Cap spanky36 Transmission - Rearend 3 01-30-2006 08:47 AM
Vent controls DoubleVision Interior 0 09-18-2004 06:17 PM
'64 Nova Cowl Vent 41chev Body - Exterior 2 03-21-2004 06:52 AM


All times are GMT -6. The time now is 07:42 AM.


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.