Previous Thread
Next Thread
Print Thread
question about manual valve bodies #695177
05/11/10 06:05 PM
05/11/10 06:05 PM
Joined: Oct 2006
Posts: 905
AZ
H
Harlow383 Offline OP
super stock
Harlow383  Offline OP
super stock
H

Joined: Oct 2006
Posts: 905
AZ
If a car has a strip B&M shifter in it (where you can only change the gears manually, meaning there is no "drive" gear where the transmission upshifts/downshifts automatically) could it still have the automatic valve body in it or will the shifter only work with a manual valve body? I bought a car from a guy and the car has this shifter in it (the shifter works) but I'm unsure whether or not he put in a manual valve body on the 727 or not. I've heard you can burn up a trans without the proper valve body installed.

Re: question about manual valve bodies [Re: Harlow383] #695178
05/11/10 06:46 PM
05/11/10 06:46 PM
Joined: Jan 2003
Posts: 32,943
Grand Prairie,Texas
stumpy Offline
I Win
stumpy  Offline
I Win

Joined: Jan 2003
Posts: 32,943
Grand Prairie,Texas
Shifter makes no difference. It will have 3 forward positions along with PRN. It's the valve body that makes the trans have to be shifted manually. If you can shift it into third and that s the gear it takers off in then it's a full manual.If you can put it in third and it takes off in low then it's an auto or semi auto valvebody. look at the trans where the linkage hooks up and see if there is one lever or two. If there is only one and not stub sticking up where you could install another then that is a full manual valve body. If you have two levers then it can be auotmatic or semimanual. If it has two levers then you need to hook up throttle pressure(kickdown linkage)to it.The wromg valve body isn't what burns up the trans but not having throttle pressure linkage will if the valve body is made for it.

Re: question about manual valve bodies [Re: stumpy] #695179
05/11/10 07:15 PM
05/11/10 07:15 PM
Joined: Oct 2006
Posts: 905
AZ
H
Harlow383 Offline OP
super stock
Harlow383  Offline OP
super stock
H

Joined: Oct 2006
Posts: 905
AZ
Quote:

Shifter makes no difference. It will have 3 forward positions along with PRN. It's the valve body that makes the trans have to be shifted manually. If you can shift it into third and that s the gear it takers off in then it's a full manual.If you can put it in third and it takes off in low then it's an auto or semi auto valvebody. look at the trans where the linkage hooks up and see if there is one lever or two. If there is only one and not stub sticking up where you could install another then that is a full manual valve body. If you have two levers then it can be auotmatic or semimanual. If it has two levers then you need to hook up throttle pressure(kickdown linkage)to it.The wromg valve body isn't what burns up the trans but not having throttle pressure linkage will if the valve body is made for it.




Wow thanks, thats exactly what I was looking for.

Re: question about manual valve bodies [Re: Harlow383] #695180
05/11/10 08:58 PM
05/11/10 08:58 PM
Joined: Oct 2006
Posts: 905
AZ
H
Harlow383 Offline OP
super stock
Harlow383  Offline OP
super stock
H

Joined: Oct 2006
Posts: 905
AZ
I went out and looked at the car today. It still has the kick down lever, it feels floppy and can be easilly rotated front or back. It looks like the previous owner hooked up some sort of strap to hold the kickdown lever in place (the strap is not attached to the lever anymore). Is it possible that this would remedy the situation or is the previous owner just an idiot?




Last edited by Harlow383; 05/11/10 09:13 PM.
Re: question about manual valve bodies [Re: Harlow383] #695181
05/12/10 08:32 AM
05/12/10 08:32 AM
Joined: May 2003
Posts: 15,487
Florida
S
scratchnfotraction Offline
I Live Here
scratchnfotraction  Offline
I Live Here
S

Joined: May 2003
Posts: 15,487
Florida
some shift kits TF3 to make a manual VB would still have the TPV lever

and it would be tied back with the hillbilly strap

with it hooked to the TPV linkage the light throttle shifts would not be as harsh like a full manual with high line pressure

tieing it back will make it shift a little harder at light throttle

IIRC anyways

deff need to know what you got,your right,it will burn itself up in short order if it needs the TPV hooked up for auto/manual shifts

my CRT full manual VB has a nub and no linkage will fit on it

does it have any auto shift features when in drive?

Re: question about manual valve bodies [Re: Harlow383] #695182
05/12/10 03:31 PM
05/12/10 03:31 PM
Joined: Jan 2003
Posts: 25,842
Rio Linda, CA
John_Kunkel Offline
Too Many Posts
John_Kunkel  Offline
Too Many Posts

Joined: Jan 2003
Posts: 25,842
Rio Linda, CA

If there is increasing spring resistance on the lever as you push it back, you definitely don't want it disconnected as it now is.


The INTERNET, the MISinformation superhighway






Powered by UBB.threads™ PHP Forum Software 7.7.1