dalorzo_f
Well-known member
Have not seen a lot of info on this subject, and spent a few hours this evening tinkering with a few I have ... will use the best for the EXP repli-bute.
In order to get the "innards" out of the block and valve I have seen posts on heat, banging on a block of wood and other such means.
I used a set of old lines, all but one with crimped lines, and one on the end with a grease zerk tapped in. And use a grease gun to squirt the buggers out. I leave the end cap in place, loose, as one took quite a bit of force and I am sure would have launched itself across the garage had the cap not been there.
A photo of the Rube Goldberg setup...
One of the three proportioning valve pistons just refused to come out. So I threaded a very small screw in the hole and then used the gun again. Worked like a charm.
You can see how corroded the inside was.
Once that was done I decided I wanted to re-plate the mount. So how to get it off...??? Dremel and a cutoff disc to the rescue. A few minutes of light cutting on the sides of the press fit and its off...
Then it was time to clean up the parts. Did not do a before on the pistons, but the block is seen here. The pistons were put in my lathe and polished with grey 3M scotch-brite. Stubborn spots got a quick hit with red, then grey.
The block got a buff with steel wool (000) and then a polish with a old toothbrush (very handy items to toss in the garage!) with Autosol.
I tired vinegar/salt solution, ammonia, etc and had to go to the buffing to get them clean. So the finish is probably "too shiny" for some, but what I had to do...
The brackets will go out for zinc dichromate next week. Need to order some kits from WCCC for the block and valve seals as I can't find the ones I bought a while ago and "put in a safe place"! :wink: So it will be a couple weeks before the reassembly is documented.
In order to get the "innards" out of the block and valve I have seen posts on heat, banging on a block of wood and other such means.
I used a set of old lines, all but one with crimped lines, and one on the end with a grease zerk tapped in. And use a grease gun to squirt the buggers out. I leave the end cap in place, loose, as one took quite a bit of force and I am sure would have launched itself across the garage had the cap not been there.
A photo of the Rube Goldberg setup...
One of the three proportioning valve pistons just refused to come out. So I threaded a very small screw in the hole and then used the gun again. Worked like a charm.
You can see how corroded the inside was.
Once that was done I decided I wanted to re-plate the mount. So how to get it off...??? Dremel and a cutoff disc to the rescue. A few minutes of light cutting on the sides of the press fit and its off...
Then it was time to clean up the parts. Did not do a before on the pistons, but the block is seen here. The pistons were put in my lathe and polished with grey 3M scotch-brite. Stubborn spots got a quick hit with red, then grey.
The block got a buff with steel wool (000) and then a polish with a old toothbrush (very handy items to toss in the garage!) with Autosol.
I tired vinegar/salt solution, ammonia, etc and had to go to the buffing to get them clean. So the finish is probably "too shiny" for some, but what I had to do...
The brackets will go out for zinc dichromate next week. Need to order some kits from WCCC for the block and valve seals as I can't find the ones I bought a while ago and "put in a safe place"! :wink: So it will be a couple weeks before the reassembly is documented.
