Fordomatic Transmission Switch Question

[all american boy]

what does this do?
( line going across bellhousing, enlarge pic and can see it is
tapped fitting in trans )
upper end was on L-shaped bracket
bolted to boss in block right below head

 

[Junknshit]

What does the button switch look like? I was wondering if the tube might possibly be a protection for a wire for a kickdown or something. I know thats pretty early for something like that, but????

 

[Ole Don]

Where did the other end go? Vacuum?

 

[all american boy]

switch looks like a trunk light switch does
but it could just be something
shoved into end of line
correction:has hex on end about 3/8" or 7/16"
don't know if it's a fluid or vacuum line
you can see where it comes out of ******

 

[Junknshit]

Probably vacuum line to control shifting. Later trans had modulator on outside of trans at rear.

 

[rick55]

Are you referring to the plug that is on top of the gearbox just behind the bell housing. If so it is a breather which usually had a loose cover over it to stop dirt getting in. There is no vacuum or electrical connection to a Fordo it is all controlled by the two levers on the drivers side. Kick down and gear selection.
Sounds to me like someone blocked up the breather by sticking a switch in it. Not a good idea.
These are a great simple gearbox that just keep on trucking.
Regards

 

[all american boy]

rick 55
it's line in this picture
it's behind front end of linkage you just mentioned
fitting in side of trans with a solid 3/16" line
coming out that makes a 90 degree turn
and heads forward towards motor
click on pic to enlarge
look close and can see flare nut fitting

 

[Daves55Sedan]

As I recall, there is supposed to be a pressure test plug at that location (near the front of the Ford-o-matic case, just above the pan flange). They may have lost the pipe plug and replaced it with an old temp sending unit or something?

 

[Daves55Sedan]

Although that is ia Truck transmission (looks like a '56), theres not any difference in the car and truck Ford-O's besides the converter housing. I am pretty sure that is a pressure test port. There is supposed to be a pipe plug in there.
You say that 3/16 tubing is coming out of that fitting? Its hard to see because the passing gear link is blocking the view.
There is no good reason to do a pressure test from above, since the adjustment is made from below. ???

 

[all american boy]

yes it's a line coming out of there
( brake line size )
tomorrow i'll go ahead and:
1 move linkage out of the way
2 brush off a little
3 take pic's from side again and top view
4 take pic of other end with 'mystery' fitting

 

[rick55]

As others have said. You don't need this line. Unscrew it and plug it. Maybe someone wanted to bamboozle everyone and ran a pressure gauge from this port. None of the Fordos I have run a line from there. They all have a bung in that location.
Regards

 

[vince76]

It seems obvious to me that someone probably tried to use that port for a cooling line.
Weather it would work or not I have no clue.

 

[bbrocksr]

As said above it is a pressure test port for main line pressure, Probably had a gage plumbed in.
Bill

 

[all american boy]

daves 55 sedan
'(near the front of the Ford-o-matic case, just above the pan flange)'
that one probably does have pipe plug in it
( under coating of dust )
this tapped hole is higher up on passenger side
zero time to take pic's today
will get it done tomorry

 

[Paul H]

The mid 50s truck FOMs had a cooler mounted on the transmission that had lines coming out of fittings on the right side of transmission.Probably what you have there is a transmission that had that cooler.I don't know if the later trucks had this cooler.The car FOMs never did use that type of cooler.

 

[all american boy]

here's are pic's of whole thing
my bad only one fitting there
and looks like owner put it
up there to test anytime he felt like it