M416A1 trailer master cylinder

Wiltshireboy · Post by **Wiltshireboy** » Wed Jun 23, 2010 11:41 am

Hi Guys, my first time on here, I have a M38A1 and an M416A1 trailer. the master cylinder on the trailer seems to be clogged up, i have had a go at cleaning it out but its not worked very well. i am wondering where I can get new insides for this. any ideas?

Balvar24 · Post by **Balvar24** » Fri Aug 13, 2010 11:48 am

Try Saturn Surplus.

Post by **wesk** » Fri Aug 13, 2010 1:39 pm

Unless you have really serious corrosion issues the metal parts and valves will clean up and the rubber parts are sure to share commonality with several master cylinders so a visit to a parts outlet should yield the needed rubber parts.

I notice the same part number for the A1 master cylinder 10614 comes up with trailer parts companies' listings of replacement parts.

http://www.etrailer.com/Accessories-and ... 10614.html

Also this thread on Steel Soldiers says the 3/4 ton M101A2 cylinder is the same and they interchange with a mid 60's CJ5 master cylinder and it's service kit.
http://www.steelsoldiers.com/trailers/4 ... -help.html

Wiltshireboy · Post by **Wiltshireboy** » Fri Aug 13, 2010 2:36 pm

Hi Wes, Thanks very much. I am going to get the whole unit on the bench in the near future. Andy

Balvar24 · Post by **Balvar24** » Wed Sep 01, 2010 6:43 am

Wiltshire, does you're trailer have solid wheels like a M38a1 or slotted like the other M416 models? Just curious. I've got solid wheels on mine.

Wiltshireboy · Post by **Wiltshireboy** » Wed Sep 01, 2010 7:12 am

it has the ones with holes in. not solid. has yours the hydraulic brake system on it?

Balvar24 · Post by **Balvar24** » Wed Sep 01, 2010 7:34 am

Yup, but I need to get them working again. What are you using to pull the plug out of the reservior?

Wiltshireboy · Post by **Wiltshireboy** » Wed Sep 01, 2010 2:31 pm

I think I just got it on the bench and undid each end and poked the rubber seal to twist it so i could pull that out and then pushed from the other end. It was the slave cylinder pistons that were seized for me and took quite a bit of wd40 and time to free them.