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Re: Mopar 727 Transmission Won't Go!!!
[Re: 4406bbl]
#1320471
10/17/12 11:43 PM
10/17/12 11:43 PM
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Joined: Aug 2011
Posts: 37
Canada's West Coast
Graham
member
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member
Joined: Aug 2011
Posts: 37
Canada's West Coast
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The 2800 stall converter might be the cause of your problem. Remember it won't perform properly until it passes it's rated stall speed. On the jack stands there is little or no resistance for the converter to stall against. So, put it all back together and see what happens when you engage the transmission and apply the throttle with all 4 wheels on the ground. Take the converter past the 2800 stall speed and see what happens. I would also think that if the ears(lugs)were broken on the internal pump gear you'd find metal contamination in the oil and on the filter. transman 
Last edited by Graham; 10/18/12 12:15 AM.
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Re: Mopar 727 Transmission Won't Go!!!
[Re: John_Kunkel]
#1320472
10/18/12 11:07 PM
10/18/12 11:07 PM
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Joined: Jan 2003
Posts: 15,323
Omaha Ne
TJP
I Live Here
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I Live Here
Joined: Jan 2003
Posts: 15,323
Omaha Ne
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Quote:
Quote:
Thanks for the input guys; my question is if you think the pump has failed then why do I have good fluid flow to the trans cooler?
See my comment above, "even with the drive tangs broken there can be enough friction between the pump rotor and drive hub to create some pressure but not enough to engage a clutch."
if you want to solve the Issue, John's the man on T/F's. Nuff said
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Re: Mopar 727 Transmission Won't Go!!!
[Re: Graham]
#1320473
10/18/12 11:19 PM
10/18/12 11:19 PM
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Joined: Jan 2003
Posts: 32,926
Grand Prairie,Texas
stumpy
I Win
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I Win
Joined: Jan 2003
Posts: 32,926
Grand Prairie,Texas
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Quote:
The 2800 stall converter might be the cause of your problem. Remember it won't perform properly until it passes it's rated stall speed. On the jack stands there is little or no resistance for the converter to stall against. So, put it all back together and see what happens when you engage the transmission and apply the throttle with all 4 wheels on the ground. Take the converter past the 2800 stall speed and see what happens. I would also think that if the ears(lugs)were broken on the internal pump gear you'd find metal contamination in the oil and on the filter.
transman
A 2800 stall will pull perfectly fine from an idle on. It's just fully locked at 2800.
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