Mopar Muscle Association UK

I copied and pasted this from a US site, I don`t know much about this but I hope it may mean something to people who understand and could help others with this issue.


Last summer I rebuilt my 727 Transmission. I used top shelf parts and rebuilt it to stock specs. No race parts or trick parts.
I Installed it last fall just as summer was coming to a end.
I got to drive it a few times and all was good, except it still leaked after sitting for a few days.

My job keeps me gone allot and I was talking to a old mopar guy while I was staying out of town, and he asked me if my kick down linkage was adjusted correctly?
I said Yes!

He asked if I was sure?
He had me tell him how I did it. I told him and He said I did it wrong. He said if the Throttle valve ( kick down lever) is open when the car is sitting for any period of time the converter will drain back into the pan and overfill it and it will seep fluid.

The correct way is adjust the lower bell crank 1st.
You insert a 1/8 drill bit into the manifold bell crank locking in in place, ( look, you will see the hole )
Unsnap the rod coming up from the lower bell crank. If you can pull up more on the rod? Then its too long. Screw the snap clockwise until you can just snap it back on to the ball while lifting up on the rod.

From there the next adjustment is carb W.O.T. adjustment, (make sure you remove the drill bit)

In my case my throttle valve was off by 5/16 of a inch. I made the adjustment. Put a drip pan under it. That was in September. I went out to the garage for the first time since September and the oil pan was dry. Not a drop of oil.

There is also a corny 1970`s tech video on youtube showing how its done. They show the six cylinders first and about half way thru they get to V-8`s

i think this could account for one of my longstanding issues ...

Worth checking. Thanks. Mine leaks plenty.

I don't see the logic of this one. Transmission leaks when the car is left standing are due the convertor gradually draining down and the fluid level rising in the gearbox and then leaking from whatever gap it can find. I can't see how the kickdown adjustment will suspend the effects of gravity, but better check it anyway in case your car accidently ends up in orbit, that could be embarrassing...

I would have thought that the convertor draining down would raise the fluid height in the pan and potentially leak out of that terrible dipstick tube seal.

Yes that's right, it can leak from places when it's standing that it doesn't when it's running because of the fluid level.

I leak trans, engine and power steering. Nothing a plastic sheet on the garage floor wont deal with. Never loses enough to need topping, just enough to be messy. Its an old car that stands for LONG periods. Its the least of my worries... engine is a DBill, gearbox is a blue, I KNOW they are both good units - A couple of pools is nothing.

...and there is an easy fix for spilt Power Steering Fluid!

Pete wrote:...and there is an easy fix for spilt Power Steering Fluid!

Are you STILL trying to get me to race it ?
I have no doubt the car is up to it... Me however...