Re: 727 no 1st gear in D
[Re: 451Mopar]
#966559
04/05/11 02:24 AM
04/05/11 02:24 AM
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Joined: Jul 2008
Posts: 30,424
Florida STAYcation
dOc !
The village idiot's idiot
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The village idiot's idiot
Joined: Jul 2008
Posts: 30,424
Florida STAYcation
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Quote:
Sprag failure? Were the springs and rollers installed correctly?
Me thimks someone might have left them out ... 
It has happened before.
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Re: 727 no 1st gear in D
[Re: Skeptic]
#966562
04/05/11 12:58 PM
04/05/11 12:58 PM
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Joined: Dec 2009
Posts: 1,074
detroit, mi
POS Dakota
super stock
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super stock
Joined: Dec 2009
Posts: 1,074
detroit, mi
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Quote:
1-2-3 are fine manual, comes off the line in 2nd gear, then upshifts into 3rd. R works fine. 
When you throw it into manual low, the low/reverse band applies in addition to the rear clutch.
In drive, you are reliant on the roller clutch and rear clutch
Sounds to me like the roller clutch isnt holding the reverse drum.
Anyway, you've proven that the rear clutch and low/reverse band work if you have manual low. This also is confirmed since you have reverse.
Sounds to me like the roller clutch is where you're going to find your problem.
Someone correct me if I am wrong. I'm just trying to envision this in my head...that's the picture I have. 
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Re: 727 no 1st gear in D
[Re: POS Dakota]
#966563
04/05/11 03:18 PM
04/05/11 03:18 PM
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Joined: Jan 2003
Posts: 74,948
U.S.S.A.
JohnRR
I Win
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I Win
Joined: Jan 2003
Posts: 74,948
U.S.S.A.
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Quote:
Quote:
1-2-3 are fine manual, comes off the line in 2nd gear, then upshifts into 3rd. R works fine.
When you throw it into manual low, the low/reverse band applies in addition to the rear clutch.
In drive, you are reliant on the roller clutch and rear clutch
Sounds to me like the roller clutch isnt holding the reverse drum.
Anyway, you've proven that the rear clutch and low/reverse band work if you have manual low. This also is confirmed since you have reverse.
Sounds to me like the roller clutch is where you're going to find your problem.
Someone correct me if I am wrong. I'm just trying to envision this in my head...that's the picture I have.
No you are correct , but he may have a valvebody issue that is causing it to start in 2nd gear 
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Re: 727 no 1st gear in D
[Re: Skeptic]
#966565
04/05/11 05:35 PM
04/05/11 05:35 PM
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Joined: Jan 2003
Posts: 74,948
U.S.S.A.
JohnRR
I Win
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I Win
Joined: Jan 2003
Posts: 74,948
U.S.S.A.
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Quote:
Oh snap. I was pretty careful putting that thing together, but stuff happens. I'll have to get it torn down and check the sprag. If there's any problem I'll just go with a bolt in unit. Thanks, Steve
If the outer race is NOT spun the std. bolt in is a waste of time and money, it does nothing to correct the potential problem of the rollers rolling over , it's function is to repair a stripped case. The only way to fix the rollers rolling over is with a super or ulitmate sprag .
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