700R4 understanding
12-20-2019, 10:12 AM
#1
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Car: 1985 Z28 Camaro IROC-Z
Engine: 5.0 305 TPI
Transmission: 700R4
700R4 understanding
hi guys,
would just like to confirm if i shift into overdrive that would be 4th gear right?
secondly how long do these boxes take to change gear? for example i will be driving along and to go into the next gear i would have to slowly increase the throttle then back off ever so slighty and it will shift.
lastly, i cannot get the transmision to shift into first. at first glance i thought it was the cable so i pulled it off and manually changed gears with my hand on the shaft slowly counting P,N,R,OD,D,2 but cant find first... what would be the issue there?
would just like to confirm if i shift into overdrive that would be 4th gear right?
secondly how long do these boxes take to change gear? for example i will be driving along and to go into the next gear i would have to slowly increase the throttle then back off ever so slighty and it will shift.
lastly, i cannot get the transmision to shift into first. at first glance i thought it was the cable so i pulled it off and manually changed gears with my hand on the shaft slowly counting P,N,R,OD,D,2 but cant find first... what would be the issue there?
12-20-2019, 01:59 PM
#2
Re: 700R4 understanding
hi guys,
would just like to confirm if i shift into overdrive that would be 4th gear right? yes
secondly how long do these boxes take to change gear? for example i will be driving along and to go into the next gear i would have to slowly increase the throttle then back off ever so slighty and it will shift. line pressure is dependent on throttle position. meaning the more the throttle is open, the "faster" and firmer it will shift. for what you are describing, i would verify that your TV cable is SET properly. i capitalized set because you don't adjust it, you set it. to set it, push the metal D in and push the adjuster all the way to the rear. then, open the throttle to WOT with the engine off of course. you should hear some clicking as the adjuster moves. once at WOT your TV cable is properly set.
lastly, i cannot get the transmision to shift into first. at first glance i thought it was the cable so i pulled it off and manually changed gears with my hand on the shaft slowly counting P,N,R,OD,D,2 but cant find first... what would be the issue there?
would just like to confirm if i shift into overdrive that would be 4th gear right? yes
secondly how long do these boxes take to change gear? for example i will be driving along and to go into the next gear i would have to slowly increase the throttle then back off ever so slighty and it will shift. line pressure is dependent on throttle position. meaning the more the throttle is open, the "faster" and firmer it will shift. for what you are describing, i would verify that your TV cable is SET properly. i capitalized set because you don't adjust it, you set it. to set it, push the metal D in and push the adjuster all the way to the rear. then, open the throttle to WOT with the engine off of course. you should hear some clicking as the adjuster moves. once at WOT your TV cable is properly set.
lastly, i cannot get the transmision to shift into first. at first glance i thought it was the cable so i pulled it off and manually changed gears with my hand on the shaft slowly counting P,N,R,OD,D,2 but cant find first... what would be the issue there?
12-22-2019, 09:28 AM
#3
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Car: 1985 Z28 Camaro IROC-Z
Engine: 5.0 305 TPI
Transmission: 700R4
Re: 700R4 understanding
Thanks for replying. i took her for a drive out today. OD works so thats cool. now with regards to what you said about line pressure... how do i increase the pressure? so let me explain... when i am driving the only time it would shift up is when i go on the throttle a bit (not WOT) and back off slightly then she will change.
regarding your last question, yes i can feel all 4 gears however i cannot select 1st manually in the car or on the selector at the gearbox
regarding your last question, yes i can feel all 4 gears however i cannot select 1st manually in the car or on the selector at the gearbox
12-22-2019, 10:06 AM
#4
Re: 700R4 understanding
Thanks for replying. i took her for a drive out today. OD works so thats cool. now with regards to what you said about line pressure... how do i increase the pressure? so let me explain... when i am driving the only time it would shift up is when i go on the throttle a bit (not WOT) and back off slightly then she will change.
regarding your last question, yes i can feel all 4 gears however i cannot select 1st manually in the car or on the selector at the gearbox
regarding your last question, yes i can feel all 4 gears however i cannot select 1st manually in the car or on the selector at the gearbox
http://static.summitracing.com/globa...structions.pdf
12-24-2019, 11:30 PM
#5
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Car: 1985 Z28 Camaro IROC-Z
Engine: 5.0 305 TPI
Transmission: 700R4
Re: 700R4 understanding
Can i pm you and maybe send you a video of the car driving so you can hear the gear changes?
12-26-2019, 03:06 PM
#7
Re: 700R4 understanding
The TV cable is effectively a pressure regulator. You need to make sure your TV cable is set properly for low and mid throttle. If it is too loose, you will get poor shifting and destroy your transmission in a short time.
Our cars have auto adjusting length TV cables but you have to reset them to make the adjustment. Press the button down on the top of the cable housing in the bracket while you slide the cable housing backwards towards the firewall and then release the button. Then rotate the throttle arm to full throttle. The cable will "click" as it adjusts to create length in the cable to allow you to reach the full throttle position. Once you release it, the TV cable will be properly set at low and mid throttle.
Our cars have auto adjusting length TV cables but you have to reset them to make the adjustment. Press the button down on the top of the cable housing in the bracket while you slide the cable housing backwards towards the firewall and then release the button. Then rotate the throttle arm to full throttle. The cable will "click" as it adjusts to create length in the cable to allow you to reach the full throttle position. Once you release it, the TV cable will be properly set at low and mid throttle.
Last edited by Tootie Pang; 12-26-2019 at 03:13 PM.
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