Advertisement
If this is your first visit, be sure to check out the FAQ by clicking the link above. You may have to register before you can post: click the register link above to proceed. To start viewing messages, select the forum that you want to visit from the selection below.

Home Who's Online Today's Posts HP Calculator CompD Gift Shop Mark Forums Read
Go Back   Competition Diesel.Com - Bringing The BEST Together > Tech Area- Dodge > Dodge Competition and Performance
Register Members List Timeslips EFI Live Library Invite Your Friends FAQ Calendar Mark Forums Read

Dodge Competition and Performance General Dodge Competition and Performance Discussion

Reply
 
Thread Tools
Old 06-12-2017, 03:29 PM   #1
dpaqu

Name: dpaqu
Title: Green Behind the Ears
Status: Not Here
Join Date: Nov 2014
Member`s Gallery
Posts: 85
46rh troubleshooting a rushed 2-3 shift on fresh rebuild.

'93 D250
I've rebuilt the trans with:

-5 pinion planetary and corresponding intermediate shaft,
-new steels+ clutches
-billet apply lever and servos ECT.
-TFOD-Hd2 valve body
-tighter Goerend converter.

Truck is in OD by 35mph. Rushes the 2-3 shift and won't hold second gear when "2" is selected. Going from "2" to "D" engages the OD. 1-2 shift feels good. Holds first gear pretty well depending on were I put the TV cable. Sometimes downshifts after I've come to a stop making me think I have a mushroomed governor valve. So I've done some pressure readings.

Iím getting the following pressures
-----------------------------Front Servo-----Rear Servo--------Acum. Port
Throttle valve--------------Front---Rear----Front----Rear----Front----Rear
Manual 1st gear-----------0---------0--------75-------110------75--------110
Manual 2nd gear----------0---------0---------0---------0--------75---------105
Drive-----------------------90--------125-----0---------0---------90--------125
Reverse -------------------20--------20---------------------------------------------
Neutral---------------------75--------75---------------------------------------------

The gov pressure is running about 1.7-1.9 x the MPH or about 60 psi @ 30mph with the throttle valve off (front) didnít test it with it forward. This is double what the FSM recommends but maybe the transgo kit changes that?

Before I drop the pan and change out what is probably a sticking mushroomed gov piston (thanks to Guitar Jones from the moparts.org for that tip) I was hoping I might narrow down some other possible problems. Like I said earlier, it is rushing 2nd gear and going to 3rd real quick and doesnít like downshifting. Shifts are pretty soft also. I didnít drill out the shift hardness hole much on the transgo kit to help ease the shock loads on the driveline, but I didnít think it would be this soft.
  Reply With Quote
Old 06-12-2017, 07:07 PM   #2
oldestof11
 
oldestof11's Avatar

Name: oldestof11
Title: Drag racer
Status: Not Here
Join Date: Jul 2007
Location: Dixon, IL
Member`s Gallery
Posts: 9,069
When I had a similar problem, it was the slack in the TV cable.
__________________
Jon
Click the image to open in full size.
  Reply With Quote
Old 06-14-2017, 09:20 AM   #3
rockjeep73
 
rockjeep73's Avatar

Name: rockjeep73
Title: Too Much Time
Status: Not Here
Join Date: Jul 2007
Location: California
Member`s Gallery
Posts: 1,331
Why did you use the HD2 and not the TFOD-Diesel?
__________________
SHSDiesel.com
  Reply With Quote
Old 06-14-2017, 12:26 PM   #4
dpaqu

Name: dpaqu
Title: Green Behind the Ears
Status: Not Here
Join Date: Nov 2014
Member`s Gallery
Posts: 85
Quote:
Originally Posted by rockjeep73 View Post
Why did you use the HD2 and not the TFOD-Diesel?
I wanted to have softer shifts to preserve the stock input and output shafts but still have high line pressure to hold the torque. It doesn't have a locking torque converter so this may have been overkill. From my understanding the TFOD doesn't have the option to drill out certain holes in the separator plate? I'm sure if your more knowledgeable you could get the stock stuff to do what you wanted.
  Reply With Quote
Old 06-14-2017, 05:39 PM   #5
oldestof11
 
oldestof11's Avatar

Name: oldestof11
Title: Drag racer
Status: Not Here
Join Date: Jul 2007
Location: Dixon, IL
Member`s Gallery
Posts: 9,069
The TFOD-Diesel won't snap a stock input... The non-locking converter helps that
__________________
Jon
Click the image to open in full size.
  Reply With Quote
Reply

Thread Tools

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 -5. The time now is 08:12 AM.

 


Powered by vBulletin
Copyright ©2000 - 2017, Jelsoft Enterprises Ltd.
Copyright ©2006 - 2017, CompetitionDiesel.com
all information found on this site is property of www.competitiondiesel.com