The Ford Barn

straycat631 · 03-06-2013, 07:00 AM

I'm swapping my 6 and 3speed in my 54 custom line for a 312 and merc-o-matic out of a 57 mercury. The problem is, I don't know how the linkage should look like at all, the merc was push-button operated. On the transmission it is two arms on the same axle, and a hole with something that looks like a cable connection. Do I have to install a push-button panel to operate it, or is it some way to connect it to the three on the tree?

Y-Blockhead · 03-06-2013, 11:11 AM

One of the two arms is the gear selector. The other is the throttle control arm (passing gear). The hole? Speedometer cable?

straycat631 · 03-06-2013, 11:50 AM

No, it is not the speedometer cable, this one (it is actually 2) is just above the 2 arms, and has an inspection hole or something under, where I can see a rod with tracks on. I tried to move the rod up and down, and it clicks, just like a shifter arm... None of the arms clicks when I move it...

straycat631 · 03-09-2013, 09:11 AM

Here is how it looks http://i1323.photobucket.com/albums/...psbaf9555e.jpg
The cable hoes in where the screwdriver is placed!

straycat631 · 03-10-2013, 02:52 PM

http://s1323.beta.photobucket.com/us...88236537018069 The cable goes in where the screwdriver is...

Motorhead6 · 03-11-2013, 02:10 PM

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Merc-O-Matic and Ford-O-Matic are the same transmission. You can go to a local used transmission parts dealer and buy the correct gear selctor and kick down shafts. You will need to drop the pan and remove parking rod from the arm inside and the large nut that attaches from the inside. Then both shafts pull out the side. Be sure to replace the chevron seal (looks like a miniature output shaft seal) and the "O" ring seal that fits in the groove between the two shafts.

Sounds more difficult than it is.

I couldn't open the picture; something about it is no longer up. If the hole you refer to is on a boss and does not enter the transmisson cavity, it's probably just a securing point ofr the speedometer cable as Y-Block said.

Good luck, Motorhead

straycat631 · 03-12-2013, 12:42 AM

http://s1323.beta.photobucket.com/us...tml?sort=3&o=6

straycat631 · 03-12-2013, 12:44 AM

http://s1323.beta.photobucket.com/us...tml?sort=3&o=6

03-06-2013, 07:00 AM	#1
straycat631 Junior Member Join Date: Nov 2012 Posts: 6	Merc-o-matic linkage I'm swapping my 6 and 3speed in my 54 custom line for a 312 and merc-o-matic out of a 57 mercury. The problem is, I don't know how the linkage should look like at all, the merc was push-button operated. On the transmission it is two arms on the same axle, and a hole with something that looks like a cable connection. Do I have to install a push-button panel to operate it, or is it some way to connect it to the three on the tree?

03-06-2013, 11:11 AM	#2
Y-Blockhead Senior Member Join Date: Jul 2011 Location: Redondo Beach, CA Posts: 5,849	Re: Merc-o-matic linkage One of the two arms is the gear selector. The other is the throttle control arm (passing gear). The hole? Speedometer cable?

03-06-2013, 11:50 AM	#3
straycat631 Junior Member Join Date: Nov 2012 Posts: 6	Re: Merc-o-matic linkage No, it is not the speedometer cable, this one (it is actually 2) is just above the 2 arms, and has an inspection hole or something under, where I can see a rod with tracks on. I tried to move the rod up and down, and it clicks, just like a shifter arm... None of the arms clicks when I move it...

03-09-2013, 09:11 AM	#4
straycat631 Junior Member Join Date: Nov 2012 Posts: 6	Re: Merc-o-matic linkage Here is how it looks http://i1323.photobucket.com/albums/...psbaf9555e.jpg The cable hoes in where the screwdriver is placed!

03-10-2013, 02:52 PM	#5
straycat631 Junior Member Join Date: Nov 2012 Posts: 6	Re: Merc-o-matic linkage http://s1323.beta.photobucket.com/us...88236537018069 The cable goes in where the screwdriver is...

03-11-2013, 02:10 PM	#6
Motorhead6 Senior Member Join Date: Jul 2012 Location: Orange Park, Fl Posts: 406	Re: Merc-o-matic linkage Sponsored Links (Register now to hide all advertisements) Merc-O-Matic and Ford-O-Matic are the same transmission. You can go to a local used transmission parts dealer and buy the correct gear selctor and kick down shafts. You will need to drop the pan and remove parking rod from the arm inside and the large nut that attaches from the inside. Then both shafts pull out the side. Be sure to replace the chevron seal (looks like a miniature output shaft seal) and the "O" ring seal that fits in the groove between the two shafts. Sounds more difficult than it is. I couldn't open the picture; something about it is no longer up. If the hole you refer to is on a boss and does not enter the transmisson cavity, it's probably just a securing point ofr the speedometer cable as Y-Block said. Good luck, Motorhead

03-12-2013, 12:42 AM	#7
straycat631 Junior Member Join Date: Nov 2012 Posts: 6	Re: Merc-o-matic linkage http://s1323.beta.photobucket.com/us...tml?sort=3&o=6

03-12-2013, 12:44 AM	#8
straycat631 Junior Member Join Date: Nov 2012 Posts: 6	Re: Merc-o-matic linkage http://s1323.beta.photobucket.com/us...tml?sort=3&o=6 Last edited by straycat631; 03-12-2013 at 10:28 AM. Reason: wrong link