TH350 Problem - Page 2

Adger Smith · 10-26-2021, 12:47 AM

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

Quote:

Originally Posted by Adger Smith

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

Quote:

Originally Posted by Terry Cain

160

I assuming the pressure is the same in both trannys?

Terry Cain · 10-28-2021, 05:26 AM

Quote:

Originally Posted by Angelo DiTocco

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

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

Are the high gear clutched showing signs of slippage?

Terry Cain · 10-29-2021, 02:21 AM

Quote:

Originally Posted by Jody Lang

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

Quote:

Originally Posted by Terry Cain

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

It should push through if outlet plugged..Doubt it would take any hp but worth looking at I suppose.

10-26-2021, 12:47 AM	#11
Adger Smith VIP Member Join Date: Dec 2001 Location: Texarkana Ark/TX Posts: 2,446 Likes: 575 Liked 880 Times in 311 Posts	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. __________________ Adger Smith (Former SS)

10-28-2021, 11:10 AM	#15
Mark Ugrich Member Join Date: May 2011 Location: Auburndale,Florida Posts: 220 Likes: 29 Liked 71 Times in 38 Posts	Re: TH350 Problem Is your pressure gauge mounted in the car or is it a diagnostic type for stationary pressure diagnosis?

10-28-2021, 04:18 PM	#16
Jody Lang Member Join Date: Mar 2002 Posts: 306 Likes: 28 Liked 89 Times in 28 Posts	Re: TH350 Problem Are the high gear clutched showing signs of slippage?

10-30-2021, 01:00 PM	#19
Mark Yacavone Veteran Member Join Date: Mar 2002 Location: Miles From Nowhere Posts: 7,782 Likes: 2,874 Liked 5,070 Times in 1,932 Posts	Re: TH350 Problem It should push through if outlet plugged..Doubt it would take any hp but worth looking at I suppose. __________________ "We are lucky we don't get as much Government as we pay for." Will Rogers