|
Go | New | Find | Notify | Tools | Reply |
DRR Sportsman |
Glide with pro brake No reverse but will hold in low gear. Any ideas what could cause this? Working for the Weekend!!!! Fordyce Motorsports | ||
|
DRR Top Comp |
So you're saying no reverse, low gear is working? Did you try the TB? | |||
|
DRR Top Comp |
If 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? | |||
|
DRR Top Comp |
Torn gasket, it happened to me. Clowns to the left of me, Jokers to the right. Here I am....... | |||
|
DRR Sportsman |
checked all normal stuff. torn valvebody gasket ? Working for the Weekend!!!! Fordyce Motorsports | |||
|
DRR Top Comp |
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? | |||
|
DRR Sportsman |
Working for the Weekend!!!! Fordyce Motorsports | |||
|
DRR Sportsman |
Working for the Weekend!!!! Fordyce Motorsports | |||
|
DRR Sportsman |
new build Working for the Weekend!!!! Fordyce Motorsports | |||
|
DRR Top Comp |
Does the trans brake work? | |||
|
DRR Top Comp |
Since 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. | |||
|
DRR Top Comp |
Pull 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. | |||
|
DRR Top Comp |
Take 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. | |||
|
DRR Sportsman |
thanks Working for the Weekend!!!! Fordyce Motorsports | |||
|
DRR Top Comp |
I 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. | |||
|
DRR Top Comp |
No problem, Let me know if I can help further. | |||
|
DRR Top Comp |
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. Clowns to the left of me, Jokers to the right. Here I am....... | |||
|
DRR Sportsman |
That is our situation exactly. Thanks !! Working for the Weekend!!!! Fordyce Motorsports | |||
|
DRR Top Comp |
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. | |||
|
DRR Trophy |
if 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 | |||
|
Powered by Social Strata | Page 1 2 |
Please Wait. Your request is being processed... |