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Old 10-26-2021, 12:47 AM   #11
Adger Smith
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Default 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.
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Old 10-26-2021, 06:44 AM   #12
Terry Cain
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Default Re: TH350 Problem
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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.
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Old 10-27-2021, 06:32 PM   #13
Angelo DiTocco
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Default Re: TH350 Problem
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160
I assuming the pressure is the same in both trannys?
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Old 10-28-2021, 05:26 AM   #14
Terry Cain
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Default Re: TH350 Problem
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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.
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Old 10-28-2021, 11:10 AM   #15
Mark Ugrich
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Default Re: TH350 Problem
Is your pressure gauge mounted in the car or is it a diagnostic type for stationary pressure diagnosis?
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Old 10-28-2021, 04:18 PM   #16
Jody Lang
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Default Re: TH350 Problem
Are the high gear clutched showing signs of slippage?
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Old 10-29-2021, 02:21 AM   #17
Terry Cain
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Default Re: TH350 Problem
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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."
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Old 10-30-2021, 11:03 AM   #18
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Default Re: TH350 Problem
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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?
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Old 10-30-2021, 01:00 PM   #19
Mark Yacavone
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Default 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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