i have a 355 sbc, 3000 stall convertor, and 700r4 trans. im having an issue that under hard acceleration it seems to "miss" in third gear. under normal driving its fine. i tried adjusting the tv cable but i get no clicks when i do it. i did what the manual on my shift kit said but it shifts really soft and doesnt feel right. so my question is do i got to move the slider toward carb or away? right now the slider is all the way toward firewall and i cant go back any farther. is my cable all out of wack or is it the tranny?

 

for firmer shifts move it away from the carb.

 

Move the slider all the way towards the firewall, and then move the throttle lever all the way to WOT - the clicks occur when you do the last step.

There is no fudging on the TV cable - you cannot set it where you ant ... it HAS to be set where it gets set by doing the adjustment procedure.

 

i have the thing as far back as it will go, i cant move it any farther back.. i have the edelbrock corrector and the stock tv cable bracket. i tried aftermarket ones and they flex way to much and moved when accelerating... so how do i make the cable tighter if its maxed out toward the firewall?

 

I will not personally recommend this, but if you cannot back the slider far enough, you can take up the slack by pulling the cable out from where it connects to the carb, and putting a spacer in.

 

I am in this situation, my engine is a carb swap and evidently does not have the correct tv/throttle cable bracket. The cable slider/clicker needs to be back toward the firefall further than the bracket will allow.

Need to get a new bracket, but in the meantime: I first made sure that the tv link point was as close to the 'geometry corrector' point as my carb throttle bracket would allow. Then I ratcheted the outer cable out thru the slider to the max extent. Next, pulled the inner cable out, and put a few very small tie wraps around it to create the spacer. I mean tiny ties, like 2-3mm wide. I was able to fine-tune the number of ties to get it to shift exactly right.

Looks real 'ghetto' but works quite well for now.

 

I used 1/8" brazing rod. I hammered them into loops so they would fit tightly around the cable. This gave me 1/4" to work with.

 

do the cables stretch after awhile?

 

Wow now that's committment!

Does the TV cable stretch? No. Have the cable ties stretched? No, been like this for about 6 months and its still where I set it. Though the brazing rod idea does seem a little less dodgy.

 

Not much of a commitment. Took about 5 minutes.

 

Sorry, had a fleeting mental image of forging the tv cable in the fires of hell

 

how far out is that slider suppoesed to be?

 

I don't know if you were referring to my thread, but the spacers I made pulled the cable out 1/4".

 

im refering to when the carb bracket is set in the "idle" position how far is the slider supposed to be out? i can pull the end of cable and have about an 1inch or so. is that to far?

 

That sounds about right, at idle you should be able to pull the cable out about an inch.

The tv cable is pulling against a spring loaded valve in the transmission. When you pull the cable, you are pulling against this spring - you can feel it pull back. The cable will only come out so far, before this tv valve reaches the limit of travel.

The aim of the adjustment is to make this limit of travel co-incide with the WOT throttle position. Thats what the rachet adjustment allows you to do - at least it does, if the bracket mounting the tv cable puts the adjuster the right distance from the carb.

It's also important that the cable + tv valve return to the right position at idle. This position is set by cable mount point on the carb throttle bracket, and it's radial position and distance from the throttle shaft. Thats what those 'geometry correctors' do. It can also be affected by the aforementioned spring in the tranny, which may have changed length over time.

From what I've read, short sloppy shifts like yours are a big tranny killer. Here's a link to a good article with tons of detail on this, especially read the 'illness' section:

http://www.tvmadeez.com/article/index.php

 

i tried adjusting it again and i adjusted it way out and it shifts threw all gears but is really sluggish if i got tighter it still misses at wot...im lost

 

So going all the way back to post 1... are you fiddling with the tv cable to try to cure a misfire? It won't.

Have you done the usual tuneup stuff, plugs wires timing etc?

 

i never refered to a misfire in any of the posts

 

That miss?

 

ya the trannys "misses" third gear..it shifts but acts like neutral which to me misses that gear

 

I didn't read the whole thread, but does it miss third gear when you manually shift?

 

does it in automatic not manually shifting, i havent tried it but im sure itll miss too. can my bracket be to far forward? i can go all the way back and ratchets out but if i try to move it back alittle it still ratchets out.. what do i do now?

 

Your tv adjustment will not cause the trans to "miss" third.

 

i have a transgo shift kit, corvette srvo, 7 vane changed to 10 vane, new input spag, and rebuild.... is it normal for these kits too have to manual shift or release gas to shift?