The Ford Barn

Barry B./ Ma. · 05-13-2011, 09:20 AM

This may have been covered before but I'm curious to know what the best trans. fluid would be for an early (1951) Fordomatic. the trans. has recently been resealed, the mechanic is gone and I don't know what he used but it still has some drips. In the old days we used Type A but it's no longer available and for years I used Dextron II. I'm thinking that maybe the present fluid is too thin and should be changed. Anyone else have fluid experience? TIA , Barry B.

51 MERC-CT · 05-13-2011, 01:28 PM

Type 'F' fluid is what I use and is what is recommended for all Ford-o-matic and
Merc-o-matic transmissions 1976 and earlier.
Most of the dripping I have had is coming from the shift shaft on the side.
It's apparent after sitting for a while and the fluid drains back from the converter.

rotorwrench · 05-13-2011, 02:25 PM

Type F (some list it as type FA) is a very good fluid for FoMoCo applications. It is best to start with it right after an overhaul since it has some detergent type qualities to it. Type A was the first type and it was a lot like MIL-H-5606 hydraulic fluid used in aircraft. I'm sure you could still find it somewhere but type F is good stuff if it's right out of overhaul.

Kerby

paul2748 · 05-13-2011, 07:58 PM

DEXRON III or Type F is the preferred. Original was Type A, not sure it is even made today. I have heard that the Dexron III is the preferred, but i used Type F in my 56 with no problems.

Barry B./ Ma. · 05-14-2011, 07:50 AM

Thanks guys, I guess Type F or Dexron III will be the choice.

Bessie · 11-28-2011, 01:22 AM

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When installing a converter, should it be filled with fliud before the installation?

40 Deluxe · 11-28-2011, 03:15 AM

You can fill it before installation if you like a big mess when you go to stab it! Just pour in a quart or so for initial lube and let the pump fill it when you start it up.

05-13-2011, 09:20 AM	#1
Barry B./ Ma. Senior Member Join Date: May 2010 Location: Southbridge, Ma. Posts: 1,614	Fordomatic fluid This may have been covered before but I'm curious to know what the best trans. fluid would be for an early (1951) Fordomatic. the trans. has recently been resealed, the mechanic is gone and I don't know what he used but it still has some drips. In the old days we used Type A but it's no longer available and for years I used Dextron II. I'm thinking that maybe the present fluid is too thin and should be changed. Anyone else have fluid experience? TIA , Barry B.

05-13-2011, 01:28 PM	#2
51 MERC-CT Senior Member Join Date: May 2010 Location: East Hartford, Ct Posts: 5,898	Re: Fordomatic fluid Type 'F' fluid is what I use and is what is recommended for all Ford-o-matic and Merc-o-matic transmissions 1976 and earlier. Most of the dripping I have had is coming from the shift shaft on the side. It's apparent after sitting for a while and the fluid drains back from the converter. Last edited by 51 MERC-CT; 05-13-2011 at 01:34 PM.

05-13-2011, 02:25 PM	#3
rotorwrench Senior Member Join Date: Jun 2010 Location: San Antonio, Texas Posts: 16,431	Re: Fordomatic fluid Type F (some list it as type FA) is a very good fluid for FoMoCo applications. It is best to start with it right after an overhaul since it has some detergent type qualities to it. Type A was the first type and it was a lot like MIL-H-5606 hydraulic fluid used in aircraft. I'm sure you could still find it somewhere but type F is good stuff if it's right out of overhaul. Kerby

05-13-2011, 07:58 PM	#4
paul2748 Senior Member Join Date: May 2010 Location: Midland Park, NJ Posts: 3,982	Re: Fordomatic fluid DEXRON III or Type F is the preferred. Original was Type A, not sure it is even made today. I have heard that the Dexron III is the preferred, but i used Type F in my 56 with no problems.

05-14-2011, 07:50 AM	#5
Barry B./ Ma. Senior Member Join Date: May 2010 Location: Southbridge, Ma. Posts: 1,614	Re: Fordomatic fluid Thanks guys, I guess Type F or Dexron III will be the choice.

11-28-2011, 01:22 AM	#6
Bessie Junior Member Join Date: Aug 2011 Location: So Cal Posts: 4	Re: Fordomatic fluid Sponsored Links (Register now to hide all advertisements) When installing a converter, should it be filled with fliud before the installation? __________________ The mountains are calling and I must go! John Muir

11-28-2011, 03:15 AM	#7
40 Deluxe Senior Member Join Date: May 2010 Location: now Kuna, Idaho Posts: 3,779	Re: Fordomatic fluid You can fill it before installation if you like a big mess when you go to stab it! Just pour in a quart or so for initial lube and let the pump fill it when you start it up.