TVC adjustment
Thread Starter
Advanced
Joined: Nov 2005
Posts: 94
Likes: 0
From: las vegas nevada
TVC adjustment
Hello, I adjusted the tvc according to the fsm, but decided to check it with the pan off. It was actually pushing the valve in about 1/8 inch and at full throttle in was about 1/8 to 1/4 inch from fully seated. So i adjusted it so that at idle state it was just touching the piston and at full throttle it was fully seated. Now it shifts at three grand at 1/8 to 1/4 throttle, half throttle feels real good so does full throttle. It downshifts perfectly, anyone know why its shifting like this. I dont want to mess with the TV cable because I believe its set correctly. Thank You Mike
Thread Starter
Advanced
Joined: Nov 2005
Posts: 94
Likes: 0
From: las vegas nevada
It was smoother but won't hold a gear, kinda quick to shift. It looked to me like the linkage assy. on the tv was tweaked, like maybe is wasn't adjusted right and tweaked it, of course i dont know what a new one looks like,,,I was told it could burn the trans up if the cable isnt adjusted properly. I have an after market pan on it (extra 2qt) with a drain plug so its not that big a deal to drop it.
Thread Starter
Advanced
Joined: Nov 2005
Posts: 94
Likes: 0
From: las vegas nevada
I was thinking about doing that, but than it would be off the setting were it was just touching the pistion and fully seated at full throttle. Do you think it would hurt the Trans if I set it between the two?
Racer
Joined: Nov 2010
Posts: 460
Likes: 1
From: Oliphant Ontario
As you know, normal adjustment is just to let it ratchet itself (assuming it works) out to full throttle. Give the spring tension, cable stretch etc etc, at that setting, I would expect it to have reached full travel in the tranny slightly before full throttle with the last little bit of throttle travel placing tension on the cable etc. In your case, if the above were true, you're too loose and need to shorten it a hair, which from your description of shifting, you need to shorten it a hair. Seems to add up!
When I bough mine, you have to let off the gas to get it to shift. Was worried about tranny issues, but noticed the TV was guitar tight at full and took the risk in buying the car. Now with the TV adjusted as per the FSM (ratchet was stuck on my car), shifts are ideal. At full throttle, the cable is pretty tight, but not limiting throttle travel.
When I bough mine, you have to let off the gas to get it to shift. Was worried about tranny issues, but noticed the TV was guitar tight at full and took the risk in buying the car. Now with the TV adjusted as per the FSM (ratchet was stuck on my car), shifts are ideal. At full throttle, the cable is pretty tight, but not limiting throttle travel.
Racer
Joined: Nov 2010
Posts: 460
Likes: 1
From: Oliphant Ontario
If it's working right, push the release and allow it to retract towards the fire wall on its own. Then push the throttle full on at the body and the cable will ratchet out to where it needs to be.
On mine, the ratchet was sticky so not only would it not retract when you pushed the button, it took way too much force to ratchet it back out.. Cleaning and WD around the barrel..
On mine, the ratchet was sticky so not only would it not retract when you pushed the button, it took way too much force to ratchet it back out.. Cleaning and WD around the barrel..
Corvette Stories
The Best of Corvette for Corvette Enthusiasts
Top 10 Most Expensive Corvettes Ever Sold on Bring A Trailer
Brett Foote
10 Things Every Corvette Owner Needs (2026 Edition)
Michael S. Palmer
8 Most "Only Corvette Owners Understand" Quirks and Problems
Pouria Savadkouei
10 Reasons the C6 Z06 is Still A Performance Benchmark After 20 Years
Joe Kucinski
How Much Horsepower Every Corvette Engine "LOST" in 1972
Joe Kucinski
Top 10 DOs and DON'Ts for Protecting Your Convertible Top!
Michael S. Palmer
Top 10 Most Explosive Corvettes Ever Made: Power-to-Weight Ratio Ranked!
Joe Kucinski
150 hp to 1,250 hp: Every Corvette Generation Compared by the Specs That Matter
Joe Kucinski
