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-   -   TH350 Problem (https://classracer.com/classforum/showthread.php?t=80693)

Adger Smith 10-26-2021 12:47 AM
Re: TH350 Problem
 
Had a customer with a similar problem. took 4 runs to slow down and stabilize. turned out to be a worn converter sprag.

Terry Cain 10-26-2021 06:44 AM
Re: TH350 Problem
 
Quote:
Originally Posted by Adger Smith (Post 650773)
Had a customer with a similar problem. took 4 runs to slow down and stabilize. turned out to be a worn converter sprag.
Don't think that the case here. Change tranny out to spare trans with same converter and boom within 1-2 (60 ft) every run. Spare is just not as fast because it does not have alum stuff in it. Spare is an point A to point B trans.

Angelo DiTocco 10-27-2021 06:32 PM
Re: TH350 Problem
 
Quote:
Originally Posted by Terry Cain (Post 650605)
160
I assuming the pressure is the same in both trannys?

Terry Cain 10-28-2021 05:26 AM
Re: TH350 Problem
 
Quote:
Originally Posted by Angelo DiTocco (Post 650918)
I assuming the pressure is the same in both trannys?
Hmmmm, good question. Have not put a gage on "spare" trans because of no problems. All books and literature shows 145-170 is good number.

Mark Ugrich 10-28-2021 11:10 AM
Re: TH350 Problem
 
Is your pressure gauge mounted in the car or is it a diagnostic type for stationary pressure diagnosis?

Jody Lang 10-28-2021 04:18 PM
Re: TH350 Problem
 
Are the high gear clutched showing signs of slippage?

Terry Cain 10-29-2021 02:21 AM
Re: TH350 Problem
 
Quote:
Originally Posted by Jody Lang (Post 651009)
Are the high gear clutched showing signs of slippage?
Trans guy says no although I'm glad you asked that. Well seasoned Super Stock racer in my area asked the same question. He said "I'll bet it high gear clutches or clearance issue."

buzzinhalfdozen 10-30-2021 11:03 AM
Re: TH350 Problem
 
Quote:
Originally Posted by Terry Cain (Post 650675)
Teflon and front pump has been out a zillion times. Not sure on temp but don't think that is the problem. Deep pan so it has an extra 2 qts. Sharver originally done trans yrs back. He plugged the coolant lines and did some drilling on pump to redirect fluid. The pump has been replaced and wondering if maybe that could be problem?
If the pump was modified for no external cooler and you've replaced the pump this may be your issue. not certain of it but thought they removed the cooler bypass valve to run no cooler, new pump having a bypass valve and setup for external cooler cause an issue with heat?

Mark Yacavone 10-30-2021 01:00 PM
Re: TH350 Problem
 
It should push through if outlet plugged..Doubt it would take any hp but worth looking at I suppose.


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