#1  
Old 08-12-2022, 04:11 PM
dv657172 dv657172 is offline
Senior Chief
 
Join Date: Mar 2012
Location: Maryville, TN
Posts: 255
Default Transmission leak question

When I jacked my car up in the front to remove front jack stands my tranny leaked a lot of fluid out of the hole shown in attached picture in the 9-10 oclock area. This is on the driver side, behind and above transmission pan.

Is this fluid from converter? Why is it leaking? Would find it hard to believe it was designed this way?


I have a TCI TH-400 Competition Transmission with a 10" 3500 stall converter
Also a B&M deep transmission (8 qt) pan

I have confirmed that the fill line on the dipstick is level with the top of the pan
I measured and topped off level at 170 degrees engine temp after having went through all the gears.


Also does anyone make a shifter cable bracket that goes on the side of a TH400 with a Deep B&M pan. B&M makes one for TH400 but a customer on Summit claimed it doesnt work with the deep pan. Mine is self made but not real well...
Attached Thumbnails
Click image for larger version

Name:	Transmission hole.jpg
Views:	105
Size:	50.3 KB
ID:	596335  

  #2  
Old 08-12-2022, 05:04 PM
dv657172 dv657172 is offline
Senior Chief
 
Join Date: Mar 2012
Location: Maryville, TN
Posts: 255
Default

Apparently this is in the area where the speedo would connect. Any ideas on best way to fix as I am not using a speedo?

  #3  
Old 08-13-2022, 06:10 AM
chuckies76ta's Avatar
chuckies76ta chuckies76ta is offline
Ultimate Warrior
 
Join Date: Jun 2004
Location: Canada
Posts: 3,093
Default

You could try a small cup plug of the proper size, tapped in should seal it up. As far as the bracket for the shifter cable and the B&M deep pan, I'm using the bracket that came with my Pro ratchet shifter with no issues. This bracket should work for you. https://www.summitracing.com/parts/bmm-35498

__________________
68 Firebird. IA2 block, 505 cu in, E-head, Solid roller 3650 weight. Reid TH400 4:11 gear. 29" slick.
Best so far 10.12@133 mph. 1.43 60 ft.
76 Trans am, TKX .81 o/d, 3.73 Moser rearend,
468 with KRE D-ports, Doug headers, 3" Exh.
  #4  
Old 08-13-2022, 11:29 AM
dv657172 dv657172 is offline
Senior Chief
 
Join Date: Mar 2012
Location: Maryville, TN
Posts: 255
Default

Chuckies76TA

Thanks for the advice and will definitely look into bracket!

DV

  #5  
Old 08-13-2022, 11:58 AM
chuckies76ta's Avatar
chuckies76ta chuckies76ta is offline
Ultimate Warrior
 
Join Date: Jun 2004
Location: Canada
Posts: 3,093
Default

Your welcome. I just looked at my spare tranny and both holes are blind holes. You shouldn't have anything leaking out that small hole. Ya just tap and plug it or a small cup plug.
Attached Thumbnails
Click image for larger version

Name:	pic1.jpg
Views:	61
Size:	78.6 KB
ID:	596371  

__________________
68 Firebird. IA2 block, 505 cu in, E-head, Solid roller 3650 weight. Reid TH400 4:11 gear. 29" slick.
Best so far 10.12@133 mph. 1.43 60 ft.
76 Trans am, TKX .81 o/d, 3.73 Moser rearend,
468 with KRE D-ports, Doug headers, 3" Exh.
  #6  
Old 08-13-2022, 05:27 PM
dv657172 dv657172 is offline
Senior Chief
 
Join Date: Mar 2012
Location: Maryville, TN
Posts: 255
Default

Very helpful!

Reply

Thread Tools
Display Modes

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

Forum Jump


All times are GMT -4. The time now is 03:38 AM.

 

About Us

The PY Online Forums is the largest online gathering of Pontiac enthusiasts anywhere in the world. Founded in 1991, it was also the first online forum for people to gather and talk about their Pontiacs. Since then, it has become the mecca of Pontiac technical data and knowledge that no other place can surpass.

 




Copyright © 2017