Combination Valve Install question

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C2ndLTpigeon

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Going to install a new combination valve on my 73 Valiant today, is there any bleeding procedure needed before install? Or will this take care of itself when bleeding the brakes?

Thanks
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It will take care of itself when you bleed your system.
That said, be prepared for leakage, a common problem with the repro valves.
Search the brake forum for the subjects of "leaking proportioning valve" or "leaking combination valve", etc. and "annealing copper washers".
Also, open it up and clean it out as best you can, common to have manufacturing debris inside of them that makes them hang up when in use.
Best of luck!
 
FYI- new ones as mentioned sometimes have issues. Debris’s, leakage, cross threaded fittings.
If your bolts up - Great. Then try to bleed the brakes and keep an eye on it when you do each wheel. If it leaks, then it’s a bad one. If not it will self bleed as you push fluid thru the system. Good luck!
 
It will bleed itself. Those valves are good. It is the same valve I use with large bolt pattern single piston Kelsey Hayes calipers. That is the newer weather head style 73 and newer. The early for 66-72 was the kelsey hayes style it is the one on the right. I have not had problems with the aftermarket weatherhead style

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Sometimes you just have to loosen and tighten all the fittings a few times to get a good seal!

Especially if changing lines at the same time!
 
Make sure to double flare your lines if your flaring them yourself. I think all the prebent stuff comes double flared
 
Took the new valve apart and cleaned it, I also took the old one apart to see if it was gunned up. Here are some pics of the new and old. The old one looks gutted. Does not have all the stuff the new one does, the old one also has initials and a reman date so it was rebuilt. Correctlly I don't know.

New
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Old
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I just bought a set from Rick Ehrenburg's Ebay store. They work perfectly, and are affordable. If you don't know Mr. Eherenburg, google him. A great Mopar resource. I'm not plugging him, I don't work for him, but his parts have helped solve a bunch of problems I've had on my '70 Swinger 340 brakes. If I've broken any rules, Mods, I apologize.
 
Took the new valve apart and cleaned it, I also took the old one apart to see if it was gunned up. Here are some pics of the new and old. The old one looks gutted. Does not have all the stuff the new one does, the old one also has initials and a reman date so it was rebuilt. Correctlly I don't know.

New
View attachment 1715794563 View attachment 1715794566
Old
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The old one appears to be a distribution block only.
 
Which may be the problem? Factory manual shows it would be a combination valve for disc brakes.
Well it certainly appears to not be a proportioning valve, doesn't it? Is the car a factory disc brake car?
 
Factory disc, the valve was horribly rusty, installed the new combination valve, had to tighten the fittings good but so far no leaks, and fluid is staying where it should in the master!
I looked at the date on that original valve and it was put on there a month before I bought the car, prev owner wasn't very knowledgeable on stuff like that so they probably through the incorrect part on there.
 
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