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700R slow to shift into Overdrive - is there an adjustment?

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broham

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hello all,

I have an 83 with the 350/4speed. The problem is when I get to freeway speed it says in 3rd gear. If i let off the gas, it will usually shift into OD and stay there. Im not sure but the 2-3 shift seems a little hard also. This make me think that the trans think I'm harder in the gas than I am. Is there an adjustment or anything?

a little back story about the truck. Got it as a trade and don't know any history but was told it had a motor swap. It has an edelbrock carb, the idle is very high and, if it matters, the speedometer doesn't work.

thank you in advance your help and suggestions

Todd
 
set your tv cable...


everything you need to know about the tv.. http://www.tvmadeez.com/article/index.php


truck off.. push in the "D" shaped button at the bracket on the intake, while depressed, push the sheath of the cable toward the firewall, release button... manually operate throttle to WOT.. you'll hear the cable click out a couple times.. release.. done..
 
it is vital on 700's.. you'll nuke it in short order if it's set incorrectly..
 
The linkage may be wrong with that Edelbrock on there. You should replace it with a factory Quadrajet.

Martin
 
could be a 1406 Edelcrap, same exact body... and even than, as long as the cable is mounted with the proper cable geometry, doesn't matter if it's a holley, quad or a friggin Predator.... :haha:

now, carb swap, and not properly resetting TV? I'd buy that for a dollar... :whistle:
 
I went to adjust the TV cable and couldn't push the button in. I disconnected the cable to take a better look. (see attached)

I can't get the button to move at all with my finger. Is that normal? From the picture on the link, it looks like my button is stuck pressed in?

am I correct and just pay the $20 to replace the cable?

thanks again everyone

photo 1.JPG

photo 2.JPG
 
yeah, that looks fubar'd... tho they can be difficult to push when untouched for awhile..

most of the buttons I've seen where black.. but that's here nor there, it does look stuck in.. iirc, the button should be pretty much flush with that outer casing...

also, if it's stuck in, you more than likely would be able to just take the sheath from behind the bracket and move forward and backward without it clicking. but that's not a given, either way, it's not good...

so yes, I'd be getting a new cable for it, and NOT DRIVING IT UNTIL INSTALLED AND SET.. :D
 
Not to change the subject but, I hear of some people installing an overdrive button under the dash to control the overdrive on these 700r4 trannys. I don't understand that, It has something to do with the lock up converter. Maybe someone can explain this ? Thanks
 
it's to control the lockup converter... basically turning it off and on.. normally it's controlled by the comp and brake pedal.. it can also be set up to not only do it for 4th gear, but 2nd and 3rd too, mainly for towing... couple ways to do it.. go to the BTO link I posted and look under converter lockup wiring.. the B&M kits are pretty neat...
 
Hey, thanks for that. I just installed a 700r4 and didn't know anything about that ! I will check it out .
 
ryoken said:
could be a 1406 Edelcrap, same exact body... and even than, as long as the cable is mounted with the proper cable geometry, doesn't matter if it's a holley, quad or a friggin Predator.... :haha:

now, carb swap, and not properly resetting TV? I'd buy that for a dollar... :whistle:
Click to expand...

Same exact body???

If it has an adaptor, spacer, or cheesy aftermarket throttle cable bracket, it could very easily mess with the correct operation of the TV cable.

Martin
 
Agreed--I bet thousands of 700R4's suddenly "go bad" shortly after a carb swap,because few people,even "professional mechanics" dont realize the TV cable adjustment is critical,and even if they do "adjust" it,there is no gaurantee the geometry is correct or close enough for it to be set right at all throttle positions..

I've seen trucks and cars with 700R4's people just left the TV cable dissconnected,thinking its "no big deal" because they assume it was a detent cable like a TH350 has,that isn't a "must" to have hooked up...usually they are looking for another tranny in a short period of time,after it wont shift right or starts slipping and burns up the clutches...

One guy in particular I know swapped in 2 trannys that were working perfectly and roasted both of them in a weeks time,then tried blaming the salvage yard for selling him "junk trannys"...he never hooked up the TV cable on the first tranny,after the junkyard told him it HAS to be hooked up,he cobbed it to his throttle linkage on a Holley 4 bbl that was not correct and the second tranny fried about a week later...he ended up having someone else rebuild the tranny and they hooked the TV cable up correctly and adjusted it right...he still swears the junkyard screwed him though!..
 
a 1406 is just edelcr@ps copy of a quad.... they do make different 4 barrels..

and thus why I said, correct cable geometry... spacers etc all can be compensated for.. I run a spacer on my TBI without issues, but I spaced up the bracket to maintain the proper angles..

but like I said, if a quad was pulled, even with correct geometry on the new set up, if the bracket to throttle distance isn't exactly as it was, it should be reset...
 
excuse me, I got my #'s mixed up off the top of my head, that's the weber copy... I'm not an Edelbrock advocate.. they do make a quad replacement..

either way, your advice was wrong.. yeah, just junk what may be a perfectly functioning carb, and spend $400 cuz I don't like anything that's not stock.. :rolleyes:
 
ryoken said:
excuse me, I got my #'s mixed up off the top of my head, that's the weber copy... I'm not an Edelbrock advocate.. they do make a quad replacement..

either way, your advice was wrong.. yeah, just junk what may be a perfectly functioning carb, and spend $400 cuz I don't like anything that's not stock.. :rolleyes:
Click to expand...

82355 said:
The linkage may be wrong with that Edelbrock on there. You should replace it with a factory Quadrajet.

Martin
Click to expand...

What advice was wrong??? I just mentioned that his linkage may be incorrect. I guess I should have been more descriptive, I was just mentioning that he should replace the Edelbrock. Until he posts a picture of what is going on, we really don't know how hack or not the install may have been.

Oh, and the 1406 is a copy of a Carter AFB, not of a Weber, even though I believe at one point they were both the same company.

Martin
 
The Edelbrock has OK tv geometry but not ideal, it will not prevent his trans from making a 3-4 shift though. I would check the governor and make sure the shaft isn't loose on the body after I got the tv cable set up and adjustment squared away. If both of those check out it could even be a leaking diaphram on the 4th gear pressure switch on the valve body not allowing sufficient pressure to keep the 3-4 shift valve stroked.
 
82355 said:
What advice was wrong??? I just mentioned that his linkage may be incorrect. I guess I should have been more descriptive, I was just mentioning that he should replace the Edelbrock. Until he posts a picture of what is going on, we really don't know how hack or not the install may have been.

Oh, and the 1406 is a copy of a Carter AFB, not of a Weber, even though I believe at one point they were both the same company.

Martin
Click to expand...

to throw his carb away and put a quad on..


carter, weber, same thing... I've got a 1/2 dozen of em kicking around the marina, merc was pretty big into them...
 
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