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Username Post: Adjusting kickdown cable?        (Topic#202260)
stricker76 
Frequent Contributor
Posts: 2370
stricker76
Loc: Ontario, Canada
Reg: 05-17-06
11-01-08 10:11 AM - Post#1554672    

Finally getting around to putting the 4x4 back together after stealing parts off of it all year for other projects. Got rid of the Edelbrock and put a Q-jet on there. I have never had to adjust the kickdown before? It has a lokar cable on it, so it's easy to do but where do i adjust it to? Right now the kickdown keeps the throttle from opening all the way. Do i just open the throttle all the way and then adjust the kickdown to that with it pulled out?? Thats what i was going to do, but have heard that it not being adjusted correctly can burn up the tranny?!?!? Overdrive is allready cooked so not too worried about that.
2007 Avalanche LT
1998 C2500 Reg cab 6.5L
1973 Monte Carlo - On the chopping block
1995 C1500 - R.I.P

http://www.cardomain.com/id/stricker76


 
LMC Truck
someotherguy 
Moderator
Posts: 25780
someotherguy
Age: 44
Loc: Texas
Reg: 08-01-03
11-01-08 10:29 AM - Post#1554682    
    In response to stricker76

Yo,

To keep from confusing it with a kickdown cable, I'm gonna call it a throttle valve cable. It adjusts the shift points but more importantly line pressure of the transmission, based off the throttle angle. Too "tight" and it will shift very hard, too "loose" and you will run such low pressure that the trans slips itself to death.

Here's a great site regarding the entire system, and adjustment of: www.tvmadeez.com - they also sell trick brackets to correct the cable geometry when using a carb with a 700R4.

If your overdrive is cooked, I'm guessing the transmission isn't long for this world.

Richard
94 C2500LD / 97 Suburban LS1 / 06 300C SRT8
Check out my truck shop projects


 
stricker76 
Frequent Contributor
Posts: 2370
stricker76
Loc: Ontario, Canada
Reg: 05-17-06
11-01-08 10:44 AM - Post#1554695    
    In response to someotherguy

Well, i don't know if it is cooked, it has just never worked well. Won't pick a gear and seems like it is slipping. Has done it since the day i got it, and the next week i just stopped running it in Od....i just stick it in drive and go and never had a problem. After this winter i am going to pull it and get it rebuilt and put some 4.11's in the diff's to go with the new 35's.
2007 Avalanche LT
1998 C2500 Reg cab 6.5L
1973 Monte Carlo - On the chopping block
1995 C1500 - R.I.P

http://www.cardomain.com/id/stricker76


 
stricker76 
Frequent Contributor
Posts: 2370
stricker76
Loc: Ontario, Canada
Reg: 05-17-06
11-01-08 10:51 AM - Post#1554699    
    In response to stricker76

Well, from the sounds of that site this cable may have been what was causing the problems all along?!?!? Doesn't really tell me how to adjust it properly....unless i'm just missing it...but i found this site that does.

http://www.tciauto.com/Products/Instructions /instr...

Thanks Richard! And to think i thought it was just a kickdown cable....lol
2007 Avalanche LT
1998 C2500 Reg cab 6.5L
1973 Monte Carlo - On the chopping block
1995 C1500 - R.I.P

http://www.cardomain.com/id/stricker76


 
Vaughn 
"13th Year" Gold Supporting Member
Posts: 15646

Loc: Colorado Springs, CO
Reg: 08-08-04
11-01-08 12:25 PM - Post#1554756    
    In response to stricker76

You can look here also:

http://purplesagetradingp ost.com/sumner/techinfo/7...

There is 7 pages of information about the 700r4 on this site.

 
someotherguy 
Moderator
Posts: 25780
someotherguy
Age: 44
Loc: Texas
Reg: 08-01-03
11-01-08 06:26 PM - Post#1554986    
    In response to stricker76

  • stricker76 Said:
Thanks Richard! And to think i thought it was just a kickdown cable....lol


A lot of people think that, and I believe it's at least partially why so many people hate 700R4's. They swap transmissions out, don't hook up the cable or don't read up on how to adjust it, and cook the transmission = "that 700R4 was junk; it burned up right away!"

Of course, the early 700R4's did have some real design issues in regards to lubrication; I think by '87 those were worked out, but we still deal with weak sun reaction shells and weak 3/4 clutches. Those are things easily remedied during a rebuild, making a very strong transmission.

Richard
94 C2500LD / 97 Suburban LS1 / 06 300C SRT8
Check out my truck shop projects


 
stricker76 
Frequent Contributor
Posts: 2370
stricker76
Loc: Ontario, Canada
Reg: 05-17-06
11-22-08 11:49 AM - Post#1569314    
    In response to someotherguy

Maybe i'm wrong here (never was too good with math), but if it has to be 1.1" from the centerline of the throttle shaft, and must be 78 degrees from closed to wot, could you not just measure the distance between the two and have it set at that much? Hate to sound lazy here, but this a pain in the censored. For how often it sees overdrive, i would rather swap in a th350 then piss around trying modifying the carb to get the correct geometry....especially since this carb is only to get it through the next few months of winter driving then a new carb goes on.
2007 Avalanche LT
1998 C2500 Reg cab 6.5L
1973 Monte Carlo - On the chopping block
1995 C1500 - R.I.P

http://www.cardomain.com/id/stricker76


 
stricker76 
Frequent Contributor
Posts: 2370
stricker76
Loc: Ontario, Canada
Reg: 05-17-06
11-22-08 02:23 PM - Post#1569381    
    In response to stricker76

Okay, i think i've got it figured out on the carb end. All of those write-ups seem to be for a factory cable. The previous owner put a lokar adjustable cable on it. Question is, the mount piece itself is adjustable on the cable, and where the treaded piece mounts to the bracket is also adjustable....how does this work?? So do i just hold the throttle wide open, pull the cable out as far as it will go and add 3/16" to that and set it there? That is what i seem to get from those write-ups. And with the adjustability on the cable, why does it need to be adjustable at the mount?? Thanks again for any help guys.
2007 Avalanche LT
1998 C2500 Reg cab 6.5L
1973 Monte Carlo - On the chopping block
1995 C1500 - R.I.P

http://www.cardomain.com/id/stricker76


 
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