Adjusting TV Cable. Verifying method from thirdgen.org
01-13-2008, 02:34 AM
#1
Adjusting TV Cable. Verifying method from thirdgen.org
I seen the following post
I would like to do this with my L98 TPI engine but I would like to verify I am understanding this correctly.
I am understanding this as:
1. Car turned OFF
2. Press "D" button and have the cable housing (black) slide into the collar more towards the front of the engine.
3. Have someone else get into car and while "D" is STILL pressed down fully, have them press the gas pedal all the way to the floor and hold it as #4 is done.
4. While gas pedal is to the floor, pull the housing as hard as I can towards the rear of the engine (firewall) so that the throttle plate is open as far as it possibly can.
5. Release the "D" button.
6. Mark the cable at the back of the plastic housing to set a mark where the cable is just in case it ever slipped or want to reset back to INSYNC setting.
I read online that you just pull the cable to the firewall with the car off and it reduces the cable tension, however this resulted in my shifts being WAY up almost into 4000rpm. I ended up fixing it (or so I hope) when I pulled over like 15 times as I (without knowing what I was doing) slighting pulling the cable a click forward or back to see the results..
But I think it might be better to be doing it the RIGHT WAY ;-) not just randomly selecting a setting that SEEMS to be perfect ;-)
Thanks.
Start with correct TV setting: To adjust the TV Cable skip the book method and do this: Press the 'D' shaped lock button on the adjuster and loosen the cable setting (The black housing that the metal cable is in will move forward). Now, have someone floor the gas pedal while you check to see if the throttle plate is open all the way. Usually they are off a little and will wiggle. Do whatever you have to do to get it open solid. Now, with the pedal still floored, press the 'D' button and pull the cable casing (the black tube) back as hard as you can (putting maximum tension on the metal cable) and release the button. You now have the engine, tranny and gas pedal all in sync at WOT. Mark the cable casing so if for some reason it gets moved you can know where to put it again. The problem with the 'self adjust method' is that it bends things and puts them permanently out of whack. It is also the full TV setting, which is theoretically what the GM method does.
I am understanding this as:
1. Car turned OFF
2. Press "D" button and have the cable housing (black) slide into the collar more towards the front of the engine.
3. Have someone else get into car and while "D" is STILL pressed down fully, have them press the gas pedal all the way to the floor and hold it as #4 is done.
4. While gas pedal is to the floor, pull the housing as hard as I can towards the rear of the engine (firewall) so that the throttle plate is open as far as it possibly can.
5. Release the "D" button.
6. Mark the cable at the back of the plastic housing to set a mark where the cable is just in case it ever slipped or want to reset back to INSYNC setting.
I read online that you just pull the cable to the firewall with the car off and it reduces the cable tension, however this resulted in my shifts being WAY up almost into 4000rpm. I ended up fixing it (or so I hope) when I pulled over like 15 times as I (without knowing what I was doing) slighting pulling the cable a click forward or back to see the results..
But I think it might be better to be doing it the RIGHT WAY ;-) not just randomly selecting a setting that SEEMS to be perfect ;-)
Thanks.
Last edited by camarosource; 01-13-2008 at 02:46 AM.
01-13-2008, 02:45 AM
#2
Re: Adjusting TV Cable. Verifying method from thirdgen.org
Just I found another method which is COMPLETELY Different so which is correct? This one looks like a completely SIMPLE 1-man process??
Press the D-shaped button/tab/whatever on the side of the TV cable at the carb. Pull the black cable sheath that comes from the trans away from the carb. Then go in the car and slowly depress the gas pedal all the way to the floor. Toward the end, it'll get hard to push, but keep going smoothly. All of a sudden it'll click and you'll feel a snap in the pedal, and it'll go to the floor. It's all adjusted.
01-13-2008, 09:32 AM
#3
Supreme Member
iTrader: (1)
Join Date: Sep 2005
Posts: 26,073
Received 1,674 Likes
on
1,271 Posts
Car: Yes
Engine: Usually
Transmission: Sometimes
Axle/Gears: Behind me somewhere
Re: Adjusting TV Cable. Verifying method from thirdgen.org
01-13-2008, 04:03 PM
#5
Junior Member
Join Date: Jan 2008
Posts: 25
Likes: 0
Received 0 Likes
on
0 Posts
Re: Adjusting TV Cable. Verifying method from thirdgen.org
simply
1. Push and hold the "D" to unlock the cable and push the cable housing towards the firewall, release the "D" to lock the cable in place.
2. With the engine off, by hand, move the throttle lever on the TPI to full throttle (it doesn't matter what your floor pedal does). You will see/hear the TV cable housing move forward on it's own. This is Setting your cable...no adjustment necessary. DO NOT adjust this cable to get a firmer/softer shift...that is not what it is for...READ the above post in whole to find out why.
3. DONE.
OK, now you can adjust your floor accellerator pedal to achieve WOT on the TPI if needed...some people have to take the carpet padding out from under the carpete to achieve this.
1. Push and hold the "D" to unlock the cable and push the cable housing towards the firewall, release the "D" to lock the cable in place.
2. With the engine off, by hand, move the throttle lever on the TPI to full throttle (it doesn't matter what your floor pedal does). You will see/hear the TV cable housing move forward on it's own. This is Setting your cable...no adjustment necessary. DO NOT adjust this cable to get a firmer/softer shift...that is not what it is for...READ the above post in whole to find out why.
3. DONE.
OK, now you can adjust your floor accellerator pedal to achieve WOT on the TPI if needed...some people have to take the carpet padding out from under the carpete to achieve this.
01-13-2008, 04:51 PM
#6
Supreme Member
iTrader: (1)
Join Date: Sep 2005
Posts: 26,073
Received 1,674 Likes
on
1,271 Posts
Car: Yes
Engine: Usually
Transmission: Sometimes
Axle/Gears: Behind me somewhere
Re: Adjusting TV Cable. Verifying method from thirdgen.org
this is explaining a Carb. I have a TPI
01-16-2008, 08:40 AM
#7
Supreme Member
iTrader: (2)
Join Date: Sep 2006
Location: Houston, TX
Posts: 2,118
Likes: 0
Received 14 Likes
on
11 Posts
Car: 1989 GTA
Engine: SuperRam 350
Transmission: Pro Built S/S TH700R4
Axle/Gears: 3.27
Re: Adjusting TV Cable. Verifying method from thirdgen.org
gr8apmech has it nailed in his post.
That's the way I did it. And it's "perfect."
That's the way I did it. And it's "perfect."
Trending Topics
01-16-2008, 09:16 AM
#8
Re: Adjusting TV Cable. Verifying method from thirdgen.org
Just about every time I have re-set a TV cable to the printed shop manual insturctions it has needed more adjustment.
Instructions tell you to push the button and push the slider all the way back towards the firewall..... then move the throttle linkage by hand to the WOT position. This action is supposed to pull the slider out to it's correct setting. Just about every time I have done this I have needed to pull the TV cable out a click or 2 more then the WOT setting sp the shift points were correct.
That's my experience with the TV Cables over the years !
Instructions tell you to push the button and push the slider all the way back towards the firewall..... then move the throttle linkage by hand to the WOT position. This action is supposed to pull the slider out to it's correct setting. Just about every time I have done this I have needed to pull the TV cable out a click or 2 more then the WOT setting sp the shift points were correct.
That's my experience with the TV Cables over the years !
The following users liked this post:
777Shock777 (04-27-2024)
03-26-2008, 12:50 AM
#9
Member
Join Date: Mar 2008
Location: New Jersey
Posts: 103
Likes: 0
Received 0 Likes
on
0 Posts
Car: 84 Z28
Engine: 350
Transmission: 700r4
Axle/Gears: 3.42
Re: Adjusting TV Cable. Verifying method from thirdgen.org
I'm tryin to set my cable perfect. I'm having an issue with 2nd-3rd at wot, the rpms go close to 6k if I let them. I've tried 1 click and 2. I just cant get it perfect.
03-26-2008, 06:58 PM
#10
Junior Member
Join Date: Jan 2008
Posts: 25
Likes: 0
Received 0 Likes
on
0 Posts
Re: Adjusting TV Cable. Verifying method from thirdgen.org
Spring in the valve body may be getting weak. Short spring is a common prob. That's why they created a fix. Get the spring kit that installs on the carb end of the cable. It has a spring that you install that 'adjusts' the cable through the full range of throttle...Or, pull your pan and remove the valve body and put a good shift kit in it...but be sure to ask for the TV Pressure spring. It normally isn't in the kits. (you could just replace that spring) All kinds of options...
I'm no expert, just a hobbiest like yourself.
I'm no expert, just a hobbiest like yourself.
03-26-2008, 07:03 PM
#11
Supreme Member
iTrader: (1)
Join Date: Sep 2005
Posts: 26,073
Received 1,674 Likes
on
1,271 Posts
Car: Yes
Engine: Usually
Transmission: Sometimes
Axle/Gears: Behind me somewhere
Re: Adjusting TV Cable. Verifying method from thirdgen.org
rpms go close to 6k
Probably means your "tach" is off, as opposed to anything being wrong with the transmission.
03-27-2008, 12:17 AM
#12
Senior Member
iTrader: (3)
Join Date: Dec 2005
Location: Fresno, CA
Posts: 522
Likes: 0
Received 0 Likes
on
0 Posts
Car: 87 Iroc-Z
Engine: 5.7 350 TPI
Transmission: stage2 700r4
Axle/Gears: 2.73 for now
Re: Adjusting TV Cable. Verifying method from thirdgen.org
what does it mean if I have slack in the cable??. In other words if i push the D shape button and move the slider towards the firewall..I then turn my lever to WOT and the slider never clicks open. I have like another 1/2 inch of that stainless steel tv cable cord before the slider can even begin to click forward
Thread
Thread Starter
Forum
Replies
Last Post
LT1Formula
Engine/Drivetrain/Suspension Parts for Sale
7
10-08-2015 08:34 PM
