Re: What is the difference a between “manual/automatic” and “full manual” valve body (rkessel) A fully manual valve body
will place the transmission in whatever gear you place the shifter in
. No matter how fast (or slow) the car is going. And it will not shift up or down on it’s own.
Do you need a TV cable with a manual valve body?
The valve body you linked to still requires
the tv
cable and was option #1 provided by Chris at Mass-flo to work with my engine management system. Since it would still require me to buy the kit from Bowtie to run the tv (option #2), I chose to try the tv and run the trans as designed.
Do you need a cable for a manual valve body?
Completely depends on the valve body. As above, if it is a factory vb modified with a transgo tf3 kit into a manual vb
it absolutely needs the linkage
, or at a minimum to wire the throttle valve lever on the transmission wide open which will make it not street friendly.
Will a 700r4 shift without the TV cable?
There are no TV cable
, mechanical speedometer drive, or governor provisions. … To run a 700-R4 trans behind a carbureted engine without a computer, at the very least the TV cable must be hooked up to the carburetor and properly adjusted.
What does the manual valve feed?
The main function of the manual valve is to connect
hydraulic pressure to the clutches or brakes
connected to a Forward, Manual shift, Reverse or Park position through the positioning of shift and/or regulating valves.
How does a valve body go bad?
When the lubricant used becomes worn out or leaks out, the metal parts of the transmission valve body
rub against each other and wear out
, causing tiny metal pieces to find their way into the transmission fluid. The effect of this is that the gears may stick and in turn fail to work as required.
What is full manual valve body?
It
will provide full manual control over all shifts
, and deliver them without delay or time costly overlap. The manual valve body is used when a transbrake is not needed, such as tractor pull, monster truck, and other track applications.
Why does my 700R4 shift so hard?
Some times it is a
stuck Throttle valve
. If yours has not been taken apart and has not had a spring put inhind the valve they will stick witch will cause late hard shifts. Try taking the cable off of the throttle linkage and pulling it all the way out and then letting go of it so it snaps back into place.
What does the TV cable do on a 700R4?
The TV cable on the 700-R4 and 200-4R transmissions
controls line pressure, shift points, shift feel, part throttle downshifts, and detent (full throttle) downshifts
. So if the TV cable is not adjusted properly, it can cause numerous transmission problems.
What would be noticed when a good shift solenoid is activated?
When the shift solenoid is activated,
the plunger will open certain valves in the valve body to allow transmission fluid to enter
. That puts pressure on the clutches and bands that cause the transmission to actually shift gears. When the shift solenoid is not given any power, the plunger will close.
What causes an automatic transmission to slip?
Automatic transmission problems can be caused by
a lack of transmission fluid
. … Slipping can also be caused by burned or worn out fluid. Sometimes transmission fluid needs to be replaced, which itself can be a sign of internal wear and tear of the transmission.
What is a kick down in an automatic?
When the accelerator pedal is pressed all the way to the floor (beyond the position normally regarded as full acceleration)
a lower gear is immediately engaged
. This is known as kick-down. If the accelerator is released from the kick-down position, the gearbox automatically changes up.
Can you fix a valve body?
Rebuilding
the valve body is a great option that is typically less expensive than purchasing and installing a brand new or remanufactured one. While saving you and your customer money is a great benefit in general, there are situations where rebuilding a valve body is especially appropriate.
How much does a valve body cost?
When something happens in the valve body – a leak, an electrical fault, or a crack – it’s best to change the whole thing. The valve body assembly will be in the vicinity of
$200 to $500
, and the labor to replace it will be around $500 or so. Expect around $1,000 to get you back up and running.
What does a valve body do?
The valve body is
the control center of the automatic transmission
. It contains a maze of channels and passages that direct hydraulic fluid to the numerous valves which then activate the appropriate clutch pack or band servo to smoothly shift to the appropriate gear for each driving situation.
