The Ford Barn

oldsman41 · 05-31-2014, 07:40 AM

need help here guys. I want to hear from guys who have done a dual master cyl conversion on their 49- 51 mercs. mainly did you use a kit and was it simple. or did you go with something that bolted straight to the same place as the old cyl and used the stock linkage. I would like to put it in the same place as stock and use the same linkage and have heard it can be done I don't want a booster. all info will be greatly appreciated. thanks

51 MERC-CT · 05-31-2014, 07:58 AM

A simple right angle bracket from ECI brakes (don't know if they still carry them) and a mid to late 60's GM drum/drum master with built in residual valves.

oldsman41 · 05-31-2014, 11:47 AM

just went to their catalog seen the spacer 220.00 bucks a bit out of my price range.

51 MERC-CT · 05-31-2014, 03:41 PM

Quote:

Originally Posted by oldsman41

just went to their catalog seen the spacer 220.00 bucks a bit out of my price range.

Suspect that you are looking at the wrong thing.
As I said they may not have them any more.
Call them to see if they still make them.
It is nothing more than a right angle adapter that bolts into the original bolt holes on the side of the frame and provides a mounting surface for the dual master.
If they don't have it try swap forum it may still be available
see here---

https://www.fordbarn.com/forum/showthread.php?t=123262

oldsman41 · 05-31-2014, 06:49 PM

yeah 51 merc that was a different dog than what you show.the piece you show is what I was thinking it should look like. thanks for pic

Bob T · 05-31-2014, 06:56 PM

Sponsored Links (Register now to hide all advertisements)

I used the Fatman bracket on my 51. It uses the stock mounting holes and raises the master cyl. higher than stock. With a 351 Windsor I had to use a heat shield. The stock push rod is shortened aprox. a inch but you still have to fiddle with it because of the location of the large adjustment nuts. Glad I did it.

oldsman41 · 05-31-2014, 10:25 PM

thanks bob what master cyl did you use?

51 MERC-CT · 05-31-2014, 11:05 PM

Don't know what Bob used but I used one for a 1966 Cad. Fleetwood from Napa PN p36373.
It puts the tube fittings on the side they need to be.
No heat shield required.
See here------

http://www.napaonline.com/Catalog/CatalogItemDetail.aspx/Brake-Master-Cylinder-Remfd/_/R-NMBP36373_0358906885

oldsman41 · 06-01-2014, 08:55 AM

thanks merc

Bob T · 06-01-2014, 11:40 AM

oldsman41... I used 77 Mustang master cyl. Raybestos # mc36440. It is for a manual disk/drum system. The fittings are on the opposite side which is what I wanted.As far as the heat shield it isn't nessesary but with the stock 351 Windsor exhaust manifolds I thought it was a good idea. The master cyl. stays nice and cool. Probably not necessary with a flat head. Call Fatman for info.$65.00

oldsman41 · 06-01-2014, 07:41 PM

thanks for the help guys

05-31-2014, 07:40 AM	#1
oldsman41 Senior Member Join Date: Jun 2010 Posts: 157	51 merc dual master conversion need help here guys. I want to hear from guys who have done a dual master cyl conversion on their 49- 51 mercs. mainly did you use a kit and was it simple. or did you go with something that bolted straight to the same place as the old cyl and used the stock linkage. I would like to put it in the same place as stock and use the same linkage and have heard it can be done I don't want a booster. all info will be greatly appreciated. thanks

05-31-2014, 07:58 AM	#2
51 MERC-CT Senior Member Join Date: May 2010 Location: East Hartford, Ct Posts: 5,898	Re: 51 merc dual master conversion A simple right angle bracket from ECI brakes (don't know if they still carry them) and a mid to late 60's GM drum/drum master with built in residual valves. __________________ DON'T RECALL DOING SOMETHING FOR MYSELF BASED ON SOMEONE ELSE'S LIKES OR DISLIKES

05-31-2014, 11:47 AM	#3
oldsman41 Senior Member Join Date: Jun 2010 Posts: 157	Re: 51 merc dual master conversion just went to their catalog seen the spacer 220.00 bucks a bit out of my price range.

05-31-2014, 06:49 PM	#5
oldsman41 Senior Member Join Date: Jun 2010 Posts: 157	Re: 51 merc dual master conversion yeah 51 merc that was a different dog than what you show.the piece you show is what I was thinking it should look like. thanks for pic

05-31-2014, 06:56 PM	#6
Bob T Senior Member Join Date: May 2012 Location: Ontario, Canada Posts: 123	Re: 51 merc dual master conversion Sponsored Links (Register now to hide all advertisements) I used the Fatman bracket on my 51. It uses the stock mounting holes and raises the master cyl. higher than stock. With a 351 Windsor I had to use a heat shield. The stock push rod is shortened aprox. a inch but you still have to fiddle with it because of the location of the large adjustment nuts. Glad I did it.

05-31-2014, 10:25 PM	#7
oldsman41 Senior Member Join Date: Jun 2010 Posts: 157	Re: 51 merc dual master conversion thanks bob what master cyl did you use?

05-31-2014, 11:05 PM	#8
51 MERC-CT Senior Member Join Date: May 2010 Location: East Hartford, Ct Posts: 5,898	Re: 51 merc dual master conversion Don't know what Bob used but I used one for a 1966 Cad. Fleetwood from Napa PN p36373. It puts the tube fittings on the side they need to be. No heat shield required. See here------ http://www.napaonline.com/Catalog/CatalogItemDetail.aspx/Brake-Master-Cylinder-Remfd/_/R-NMBP36373_0358906885 __________________ DON'T RECALL DOING SOMETHING FOR MYSELF BASED ON SOMEONE ELSE'S LIKES OR DISLIKES

06-01-2014, 08:55 AM	#9
oldsman41 Senior Member Join Date: Jun 2010 Posts: 157	Re: 51 merc dual master conversion thanks merc

06-01-2014, 11:40 AM	#10
Bob T Senior Member Join Date: May 2012 Location: Ontario, Canada Posts: 123	Re: 51 merc dual master conversion oldsman41... I used 77 Mustang master cyl. Raybestos # mc36440. It is for a manual disk/drum system. The fittings are on the opposite side which is what I wanted.As far as the heat shield it isn't nessesary but with the stock 351 Windsor exhaust manifolds I thought it was a good idea. The master cyl. stays nice and cool. Probably not necessary with a flat head. Call Fatman for info.$65.00

06-01-2014, 07:41 PM	#11
oldsman41 Senior Member Join Date: Jun 2010 Posts: 157	Re: 51 merc dual master conversion thanks for the help guys