Care for a nice cup of, well, nastiness?

[mirage83]

I figure it's rust and who knows what else in what passed for brake fluid. Ran clean, new DOT 3 through the entire system, and plan on doing it again in a month or so. Think that'll take care of it, or is there something else I need to plan on doing here?

 

[87tomanymods]

that is pretty dirty but iv seen much worse. should def raise your systems boiling point quite a bit happy braking

 

[adampecush]

thats just sort of what happens to brake fluid over time, especially in a 20 year old car.

 

[mirage83]

So with a little luck there shouldn't be anything else I should do to the system other than just rebleeding it in a month or so to remove any sediment/rust which breaks free? That's the plan unless someone suggests something else.

 

[jdub]

I wouldn't be surprised if your master cylinder and/or wheel cylinder seals start to leak. I'd keep an eye on them.

 

[ERA]

Yum.

 

[Piratetip]

Let us know if its any good.

 

[mirage83]

I wouldn't be surprised if your master cylinder and/or wheel cylinder seals start to leak. I'd keep an eye on them.

I'm definately keeping an eye on the calipers. I've already replaced the MC with a new Aisin from Champion, and the brake lines with Goodridge SS. So I'm hoping that merely rebleeding a time or two will finish cleaning out the worst of the gunk, and perhaps rebuilding the calipers in a couple hundred miles just to cover my bases (and ass).

Let us know if its any good.

Let's just say it's not up to Starbucks standards. :biglaugh:

 

[supraman666]

I figure it's rust and who knows what else in what passed for brake fluid. Ran clean, new DOT 3 through the entire system, and plan on doing it again in a month or so. Think that'll take care of it, or is there something else I need to plan on doing here?

nice bong and gun you got there. but you should replace the bong water :biglaugh:

 

[mirage83]

nice bong and gun you got there. but you should replace the bong water :biglaugh:

Yeah, it's a Michael Phelps limited edition, but I suppose it really could use some fresh water. :evil2:

 

[dumbo]

nice bong and gun you got there. but you should replace the bong water :biglaugh:

+!:biglaugh:


Ahh that fluid doesn't look too bad.

jdub, why do you say it would leak now?

Isn't it cheaper to buy new calipers than properly rebuilding these days?

 

[sneakypete]

all that gunk was probably built up in the seals preventing it from leaking... keep your eye on everything

 

[mirage83]

all that gunk was probably built up in the seals preventing it from leaking... keep your eye on everything

Roger that. No sign of it so far, but I only bled them yesterday. I'll check them all again in a couple of weeks (unless they give me an excuse to have to do it sooner).

Isn't it cheaper to buy new calipers than properly rebuilding these days?

I'm not sure about new aftermarket, but new Toyota calipers are expensive as hell. A Toyota rebuild kit is only $20 or so IIRC.

 

[bluepearl]

As JDUB said. Unfortunately, you can't see the inside of the calipers. That fluid doesn't look too bad. As others have said, I have seen much worse. Either way the braking system is a little happier now. The calipers may be just fine. The fluid don't look rusty, just dirty and worn out for 10 years. The cause of the color is due to moisture, which is scary because that causes rust. Keep a close eye on brake performance. Only you can tell if anything changes.

 

[IJ.]

At a bare minimum I'd flush it through with denatured alcohol till it runs clear before wasting brake fluid in that car.

 

[sneakypete]

denatured alcohol is safe to use with the seals?

 

[IJ.]

Yep I worked in the brake and clutch industry when I was a kid and that's what we used as it attracts any water/moisture in the system and transports it out.

I give mine a flush and new fluid every couple of years to prevent the OP's situation.

 

[mirage83]

At a bare minimum I'd flush it through with denatured alcohol till it runs clear before wasting brake fluid in that car.

Do you recommend letting the alcohol sit in the system for a given period of time before flushing it out, or just run it straight through and out? Also, after the alcohol flush do you just run the new DOT 3 or whatever in right behind it?

 

[IJ.]

I leave it sit maybe 20 minutes then keep pumping it through till it runs clear, I then pump some fluid through till it runs clear (you'll smell the alcohol in it) then bleed it.

I recently changed over to Motul RBF600 as I'd boiled the 5.1 I was using (suspected it had been in the car too long)

 

[jdub]

A flush with alcohol would have been better prior to putting in new fluid. Now that you've done it, not a huge requirement. Brake fluid is hygroscopic (like alcohol)...the new fluid you have in there now will absorb any moisture that is left in the system. Another flush with clean fluid will pretty much rid the system of moisture...might consider doing it in the near future.