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Hot Rod Forum : Hotrodders Bulletin Board > Tech Help> Transmission - Rearend> TV adjustment with lokar cable on 700R4
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Topic Review (Newest First)
10-25-2009 10:35 PM
Originally Posted by jjlabinski
Thanks for the pointers.
Where do I connect the pressure gage and what range should the gage be?


Check here>>

10-25-2009 05:32 PM
jjlabinski Thanks for the pointers.
Where do I connect the pressure gage and what range should the gage be?


10-22-2009 06:21 AM
SSedan64 This is for the BTO kit but, has some Info, Step #4>
And here. >>
10-22-2009 12:25 AM
C-10 The pressure is a very good indicator of condition and trouble shooting.

Here is a wordy write-up on the TH700R4 throttle valve.

10-21-2009 06:32 PM
302 Z28 The idle position is usually set with a pressure gage attached to the trans. You pull it out just a little until you see the pressure rise and that is the idle position. Without the pressure gage just pull it out about 3/16" of an inch.

The geometry at the throttle has to be correct, that is to say that the ratio of the cable travel has to be correct for the given throttle movement. A lot of adjustment to shift points and overall feel can be made with an adjustable throttle crank.

What injection system do you have?

Be advised that an improperly adjusted TV cable can ruin the trans in a very short time .

10-21-2009 05:11 PM
lokar cable

Thank you for the reply.

The way I have it set now is I pulled on the TV cable until it wouldn't move any more at full throttle. I dont know if that positions the valve in the proper position in the closed throttle position.

Is there a preferred method of verifying the geometry?
how much pre load should be on the cable at closed throttle and how does one measure that?

thank you

10-21-2009 03:38 PM
302 Z28 What is your geometry? It is very important that you have the correct bracket geometry where the cable attaches to your injection. Other than that the Lokar cable adjusts just like any other. Open your throttle all the way pull the cable out all the way and adjust the cable until it matches the WOT position. Then close the throttle and see if the unextended cable position matches the closed throttle position. Some pre-load on the cable is desired at idle position.

Have you visited the web site for instruction?

10-21-2009 01:06 PM
TV adjustment with lokar cable on 700R4

Hi to your forum.

I have a street machine ...fuel injected chevy 350 with 700r4 3000 stall converter, B&M overdrive spool so the trany doesnt kick down at 3/4 throttle and the gil younger shift kit with corvette servos.

I am using the lokar TV cable and I cant seem to get it to shift properly.

Can anyone offer some advice?

thank you


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