Proportioning valve question

[Wrangled13]

'79 CJ5
Trying to figure out what line goes where. Was way too tired when I took it off to remember. All new lines ran but unsure where they hook up correctly and can't find correct diagram


Sent from my probably outdated electronic device, more than likely tracked by our government.

 

[BusaDave9]

Here is the way all CJ proprotioning valves are connected.

The picture isn't clear about the 2 lines from the master cylinder.
Keep in mind the front reservoir is for the rear brakes and the rear reservoir is for the front brakes.
So the right half of this picture is for the rear and the left (pointing to the front of the jeep) is for the front. There are 2 separate brake lines coming out of the proportioning valve to the separate front brakes.

 

[Wrangled13]

I saw that one unfortunately that's a little different than mine. I think I may have it however the lines don't fit the valve!!!


Sent from my probably outdated electronic device, more than likely tracked by our government.

 

[BusaDave9]

the lines don't fit the valve!!!

Common problem. The factory does that on purpose. You see all the fittings are different sizes. (except the front lines are the same since they don't matter)
They do this to make sure you don't put the brake lines on wrong. Make sure your brake lines are going to the right locations. If you are sure they are then what's changed? If the prportioning valve or brake lines are getting replaced it is best to make your own lines with tubing and fittings. Use a brake flairing tool like this:

 

[Wrangled13]

Bought ore fitted lines from inline so I would have figured the fitting would be correct, but have seen where most others have the other valve. Going to store to see if I can get adapter for the one fitting. Annoying.


Sent from my probably outdated electronic device, more than likely tracked by our government.

 

[BusaDave9]

Yes that is annoying. I have given up on buying pre-shaped brake lines. I find it easier and cheaper to make my own. It isn't hard. Actually it's easier than dealing with returning brake lines again and again.
I guess these are things you would have liked to hear a week ago. I hope you can find the right adapter. Bring the proportioning valve with you. This will make sure the adapter will fit. Bring the brake line to if you can. If they don't have an adapter then buy a brake flair tool and fitting. Fix the brake line you already have.

 

[Wrangled13]

Brought them both. Just got to store


Sent from my probably outdated electronic device, more than likely tracked by our government.

 

[Wrangled13]

May take 2 adapters....


Sent from my probably outdated electronic device, more than likely tracked by our government.

 

[Wrangled13]

Does the electrical connector at the top matter on the valve? Kind of broke it off


Sent from my probably outdated electronic device, more than likely tracked by our government.

 

[BusaDave9]

That is for the brake light on the dash. If it's not working the brakes will still work but it is really nice to know if the brakes aren't working. Even if the brake fluid goes low the plunger in the proportioning valve will move all the way to one side and illuminate the brake light on the dash.

 

[IOPort51]

You did replace that prop valve?? the correct answer is "yes".

 

[Wrangled13]

You did replace that prop valve?? the correct answer is "yes".

Ha. If anyone carried one maybe. But the answer for now is no. This is the stupidest thing in the world to try to hook up with the exhaust in the way


Sent from my probably outdated electronic device, more than likely tracked by our government.

 

[IOPort51]

Disc Drum Proportioning Valve Brass MBM-PV2

ask and you shall receive, if the prop valve does not work the brakes don't work.

 

[Wrangled13]

Completely different setup there. I think someone prior to me did some stuff to this jeep that were not even close to appropriate.

FYI I hate doing brake lines


Sent from my probably outdated electronic device, more than likely tracked by our government.

 

[IOPort51]

Woops! as I recall you have, for some unknown reason, drums on all 4 wheels.

Disc Disc or Drum Drum Proportioning Valve Kit Left Side Brass MBM-PV4K-2

if this is the case the master cylinder will have to be drum drum as well.

It just keeps getting more and more interesting.

 

[Wrangled13]

I bought drum drum master, so hopefully we will be ok. It's getting real interesting here. I think the beer is not enough to get through this. The fire ball may have to come out


Sent from my probably outdated electronic device, more than likely tracked by our government.

 

[IOPort51]

As my Dad used to tell me, " a car that stops well is worth more than a car that just runs well". Everybody hates doing brake lines, Anything that involves laying on a creeper for more than 30 minutes and involves tubing wrenches is not what can be called a good time. It is the one place you absolutely have to get it right.

 

[IOPort51]

What year master cylinder did you buy??

 

[Wrangled13]

Pretty sure it's the right master, exact same as what came off (for what that's worth). It's all together finally, now we add fluid and pray


Sent from my probably outdated electronic device, more than likely tracked by our government.

 

[IOPort51]

reason I ask is I have done a disk /disk and am looking for a MC that will have equal sized pistons and reservoirs for front and back and still bolt up to the pedal assembly.