Bracket Talk
Glide no reverse
June 22, 2020, 10:29 PM
diceman1530Glide no reverse
Glide with pro brake
No reverse but will hold in low gear.
Any ideas what could cause this?
Working for the Weekend!!!!
Fordyce Motorsports
June 23, 2020, 12:25 AM
Mike Rietowquote:
Originally posted by diceman1530:
Glide with pro brake
No reverse but will hold in low gear.
Any ideas what could cause this?
So you're saying no reverse, low gear is working?
Did you try the TB?
June 23, 2020, 12:47 AM
Mike RietowIf the TB works but reverse doesn't, check power at the solenoid with the shifter in reverse, backup button pushed.
Check your shift lever / cable adjustment in reverse.
Could be the manual valve is off, or it could be slop in lever keyed through the rooster.
Could be a lot of different things, check the first items I mentioned.
What did it do when it quit working? Anything unusual happen?
June 23, 2020, 06:30 AM
CashflowTorn gasket, it happened to me.
Clowns to the left of me, Jokers to the right. Here I am.......
June 23, 2020, 08:11 AM
diceman1530checked all normal stuff.
torn valvebody gasket ?
Working for the Weekend!!!!
Fordyce Motorsports
June 23, 2020, 08:14 AM
Mike Rietowquote:
Originally posted by diceman1530:
checked all normal stuff.
torn valvebody gasket ?
Is the TB holding, no reverse? is that what you're saying?
Can you give some history on this, how long has it worked, is it fairly new?
June 23, 2020, 08:14 AM
diceman1530quote:
Originally posted by diceman1530:
checked all normal stuff.
new build
torn valvebody gasket ?
Working for the Weekend!!!!
Fordyce Motorsports
June 23, 2020, 08:15 AM
diceman1530quote:
Originally posted by Mike Rietow:
quote:
Originally posted by diceman1530:
checked all normal stuff.
torn valvebody gasket ?
Is the TB holding, no reverse? is that what you're saying?
yes
Can you give some history on this, how long has it worked, is it fairly new?
Working for the Weekend!!!!
Fordyce Motorsports
June 23, 2020, 08:16 AM
diceman1530new build
Working for the Weekend!!!!
Fordyce Motorsports
June 23, 2020, 08:19 AM
Mike Rietowquote:
Originally posted by diceman1530:
new build
Does the trans brake work?
June 23, 2020, 08:31 AM
Mike RietowSince it is a new build and worked before, it could be that the lever has slop in the rooster.
When the shifter is in reverse the lever has the manual valve out of position.
The more non factory internals we see out there due to PG cores running out, the more I suspect this in situations like this.
Ya need a tight interference fit lever keyed/splined to comb.
June 23, 2020, 08:39 AM
Mike RietowPull the trans pan, you'll see a gear selector guide plate, take the two bolts out of that to remove. Take the cable off the shift lever and hold the manual valve to check for slop.
I'll see if I can round up a photo guide plate and manual valve for ya.
June 23, 2020, 08:51 AM
Mike RietowTake the guide plate shown on left off, so you can see if there is slop.
You'll see the maual valve when you take this plate off.
The lever on the right slides through the rooster. Your looking for slop in those two pieces.
June 23, 2020, 08:56 AM
diceman1530thanks
Working for the Weekend!!!!
Fordyce Motorsports
June 23, 2020, 09:08 AM
Mike RietowI smell china junk has you waisting time on junk.
GM Powerglide internals are getting somewhat hard to find.
It could be the rooster cracked I suppose, I'm sure you've seen or heard of that before.
That'll cause a manual valve misalignment too.
June 23, 2020, 09:35 AM
Mike Rietowquote:
Originally posted by diceman1530:
thanks
No problem, Let me know if I can help further.
June 23, 2020, 11:40 AM
CashflowI guess I should’ve explained better. My car would not back up with the shifter in reverse and me mashing the transbrake button. It would however hold when in low gear and pushing the button.
I tore it down and the only thing I found was a torn valvebody gasket. Replaced it and all was good.
Clowns to the left of me, Jokers to the right. Here I am.......
June 23, 2020, 12:47 PM
diceman1530quote:
Originally posted by Cashflow:
I guess I should’ve explained better. My car would not back up with the shifter in reverse and me mashing the transbrake button. It would however hold when in low gear and pushing the button.
I tore it down and the only thing I found was a torn valvebody gasket. Replaced it and all was good.
That is our situation exactly.
Thanks !!
Working for the Weekend!!!!
Fordyce Motorsports
June 23, 2020, 12:56 PM
Mike Rietowquote:
Originally posted by diceman1530:
quote:
Originally posted by Cashflow:
I guess I should’ve explained better. My car would not back up with the shifter in reverse and me mashing the transbrake button. It would however hold when in low gear and pushing the button.
I tore it down and the only thing I found was a torn valvebody gasket. Replaced it and all was good.
That is our situation exactly.
Thanks !!
You need to check the pressure at the reverse port, with the shifter in low trans brake applied and with the shifter in reverse, backup button applied.
This will tell you if it's the manual valve (slop in lever, or manual valve needs indexed), or a leak as cashflow is suggesting.
June 23, 2020, 08:50 PM
Andy5602if its a new build and a stock case the port in the back of the case must be drilled or enlarged to 1/4 if I remember right. had one tranny years ago that we pulled apart 4 times before we reread the directions! LOL