turbo 350 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 07-31-2005, 04:54 PM
A/G WILLYS's Avatar
Member
 
Last photo:
Join Date: Nov 2002
Location: Connecticut
Posts: 74
Wiki Edits: 0

Thanks: 0
Thanked 0 Times in 0 Posts
turbo 350 leak?

My son has a stock 70 cutlass 350 350 it was leaking transmission fluid out the dipstick at the bottom so I drained the fluid thinking he over filled it, new gasket, filled it back with oil and it wasnt leaking, he went for a ride came back and the car sat for about an half an hour and it started pouring out oil, I have heard of a drain back transmission problem but not sure that's it and what do you do to repair that? Is it the tranny or the torque converter? One other thing the transmission is so hot you cant put your hand on the pan, any information will be greatly appreciated thanks dave

    Advertisement

Last edited by A/G WILLYS; 07-31-2005 at 05:30 PM.
Reply With Quote Quick reply to this message
Sponsored Links
Advertisement
 
  #2 (permalink)  
Old 07-31-2005, 09:44 PM
Jmark's Avatar
Registered User
 
Last photo:
Join Date: Sep 2003
Location: phoenix
Age: 61
Posts: 4,932
Wiki Edits: 0

Thanks: 13
Thanked 47 Times in 36 Posts
Was the dipstick the "O-ring" type? Those leak alot and seem to be hard to stop sometimes. I switched my tube on my TH350 to a newer style that takes a large upside down looking "tophat" style seal and its been bone dry every since. Other things that can be leaking are the shift shaft seal and lines. The shift shaft seal is very close to the pan area and can be overlooked for a pan leak.

As far as the leak down, its common for the torque converter to leak down when off.

As far as the heat goes, yes, automatics run pretty hot and can't be touched if driven for very long.

Any chance the front pump seal is leaking? Happens too and quite often when not running. The pressure keeps it sealed until the pressure goes away, then it will dump some oil out. You will need to remove the dust shield to get an idea on the pump seal.

Sometimes a mirror and flash light will help find the source of the leak, along with some brake clean or carb spray.

Mark
Reply With Quote Quick reply to this message
  #3 (permalink)  
Old 07-31-2005, 10:35 PM
A/G WILLYS's Avatar
Member
 
Last photo:
Join Date: Nov 2002
Location: Connecticut
Posts: 74
Wiki Edits: 0

Thanks: 0
Thanked 0 Times in 0 Posts
it's definitely coming out of the dipstick tube but the wieird thing is it's like 15 minutes after you shut the car off and it pours out and the transmission pan is so hot you cant touch it.
Reply With Quote Quick reply to this message
  #4 (permalink)  
Old 07-31-2005, 11:25 PM
Jmark's Avatar
Registered User
 
Last photo:
Join Date: Sep 2003
Location: phoenix
Age: 61
Posts: 4,932
Wiki Edits: 0

Thanks: 13
Thanked 47 Times in 36 Posts
Sorry I can't be more help, but hopefully Crosley or Airworld will pop in and solve the problem. Both are professional builders and know their stuff.

Mark
Reply With Quote Quick reply to this message
  #5 (permalink)  
Old 07-31-2005, 11:30 PM
A/G WILLYS's Avatar
Member
 
Last photo:
Join Date: Nov 2002
Location: Connecticut
Posts: 74
Wiki Edits: 0

Thanks: 0
Thanked 0 Times in 0 Posts
I appreciate the help,, hopefully someone has the answer.
Reply With Quote Quick reply to this message
  #6 (permalink)  
Old 08-02-2005, 07:53 PM
Crosley's Avatar
Hotrodders.com Moderator
 
Last wiki edit: T-350 rebuild tech
Last journal entry: Morris update 9-28-2014
Last photo:
Join Date: Nov 2002
Location: ... USA
Posts: 8,185
Wiki Edits: 1659

Thanks: 421
Thanked 108 Times in 104 Posts
If it is leaking at the dipstick tube at the tranny case , pull the tube out to find the problem........ the older design tubes with an O ring will crack there.

Regarding the tranny heat and touching the tranny pan. Heat some water to 150*F on the stove.... touch the pan . Is it HOT? 150*F on an automatic is a fine temp for it to operate at......many operate at higher temps

Do you see my poor attempt to explain the temp thing to you ??
__________________
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 08-02-2005, 09:52 PM
A/G WILLYS's Avatar
Member
 
Last photo:
Join Date: Nov 2002
Location: Connecticut
Posts: 74
Wiki Edits: 0

Thanks: 0
Thanked 0 Times in 0 Posts
thanks for all your help, I think I found the problem the vent was plugged solid and I quess it cause some pressure and caused it to blow past the O-ring so far so good. as far as the temperture my friend had one of those laser temp things that you point at the object and the tranny was around 195? thanks dave
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
Help with Turbo 350... Jason_R Transmission - Rearend 1 09-26-2003 08:12 PM
350 Turbo, Help Blazemore Transmission - Rearend 2 09-03-2003 07:24 AM
Turbo 350 1980 Malibu Transmission - Rearend 14 07-27-2003 05:24 PM
turbo 350 tail shaft kid Transmission - Rearend 10 04-26-2003 03:36 PM
Turbo 350 Trouble in 85 gmc jdimassi Transmission - Rearend 7 01-26-2003 02:34 PM


All times are GMT -6. The time now is 04:18 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.