More than just the air pack

[JEMartin]

Hi All,

I picked my deuce up 3 weeks ago. Finally getting around to working on it. I pulled my air pack off to rebuild since it was constantly venting. Looks like I am going to have to rebuild the whole brake system. The attached picture is what came out of the air pack. Looks like a mixture of both DOT 5 and DOT3. Since I am new not really sure what it is. I do know it doesn’t look right.

 

[Jeepsinker]

Your probably right. It could be water though. Have you drained the air tanks yet? Water shouldn't get in the brake fluid from the air tank, I just figured I'd ask. The previous owner may have sank the truck in a mudhole and left it for days or even longer, possibly allowing water intrusion from any of a bunch of points in the brake system. If you are going through the whole system, do yourself a favor and order a new master cylinder from Clintogf, $55 brand new American made replacement. You can't beat that anywhere.

 

[gimpyrobb]

Well, if someone (d.s.p.o.) never drained the air tanks, water certainly would end up in the air pack!

 

[JEMartin]

Actually the breaks are the 2nd thing I started working on. I added Automatic Drain Values to the tanks.

 

[Warthog]

So did you break it or brake it?

 

[JEMartin]

Master and Wheel cylinders are next weekend plus what ever else I find when I get to the wheel cylinders.

 

[swbradley1]

If it seems like you are getting picked on you aren't. Spelling is important for future users. It's brakes and NOT breaks.


My questions is where did you get those auto drain valves.

 

[Jeepsinker]

Those are nice drain valves, but not necessary once you install a good air dryer, which you SHOULD.

 

[JEMartin]

I got the valves from http://www.eriksmilitarysurplus.com/index.html

 

[JEMartin]

Power pack rebuilt. Brake Reservoir with quick connect added for Power Bleeder. Waiting on MC and WC rebuild kits to come in.

 

[Flyingvan911]

Good work rebuilding everything. Flush those brake lines out super well with alcohol.

 

[lino]

Since I am new not really sure what it is. I do know it doesn’t look right.
View attachment 542710

That's a Black and Tan.


It should be Guinness and Harp, but it looks like you got it upside-down. Yer Guinness should be on the top.

Joking aside, don't try drinking it to identify. And whether it's DOT3 and DOT3 or DOT5 and rusty water, the solution is the same. Which is exactly what you appear to be doing. Clean/replace/rebuild the whole shebang. Also worth looking for (but hard to find) are places where your brake lines might be internally corroded. With that much water sitting separated, you could have some very thin brake lines in places.

 

[JEMartin]

One of my favorite drinks when home in Ireland. Doesn't taste the same here. I did identify the source. When I removed the MC today, I noticed it was a new one. Only DOT 3 in it. Got to go get more alcohol (non-drinking and drinking kind). Going to rig up a quick connect adaptor to connect my power new power bleeder directly to my line at the MC and flush the lines. WC's next.

 

[JEMartin]

I am thinking I should not use this DOT5 after spending the time to rebuild everything.

 

[lino]

Ha! I have the same stuff. Vintage '92.
I couldn't bring myself to use it. Plus I really wanted the contrasting purple color to tell when fresh fluid was coming out of the system.

I decided to order some new stuff from http://www.iris-911.com/products.htm per Peashooter's recommendation.
I should have 2 gallons of that ($32 each) on Monday...

 

[gimpyrobb]

Pour it through a coffee filter and run it. Its too expensive to throw out!!!!!!!!!!

 

[Woodsplinter]

It doesn't stay purple for long, either.

 

[rustystud]

It doesn't stay purple for long, either.

Once exposed to the air it will last about 5 years before turning a Tan color.

 

[Rmtaunton]

Ok I am having serious deuce withdrawals , any body in Jacksonville that wants to to talk about there's get in touch

 

[JEMartin]

Now that I think about it, after 23 years to have that little amount of rust in it isn't that bad.