Re: JPOR: bench bleeding master cylinder?

[Steve Friend <sfriend@xxxxxxxx>]

I use Castrol GTLMA.  It advertises that is surpasses DOT 3 and 4.  I
has a higher temperature rating and the lowest water absorption.  I
found that using regular fluid in my motorhome, would eventually fail,
due to the high temperatures created by lots of braking and the heavy
rig.  

Bleeding the MC on a rig, is almost impossible.  The air bubbles like to
stick to the chambers in the MC, and not leave. Bleeding it thru the rig
would take forever.  

SF

"Paul W." wrote:
> 
> ****************Please Remember to snip your replies***************
> dallas hill <hill_dallas@lanl.gov> wrote:
> >       What is the proper way to bench bleed a master  cylinder?
> 
> Two ways...
> 
> 1.  Plug the outlet line(s) and pump the piston until no more air bubbles
> surface in the reservoir(s)
> 
> 2. Install bleeder hoses/line(s) in the outlet line(s) and run them into the
> fluid in the reservoir and pump the piston until there are no more air bubbles.
> 
> > How is it different than bolting it on to the jeep and bleeding it on
> > the jeep?
> 
> Since air likes to seek the high spot, it's hard to get all the air out of the
> m/c when it's installed without bench bleeding first.
> 
> > I have a 69 CJ5 with a new master cylinder, brake lines,
> > and slave cylinders and am having problems getting the air out.   I
> > am also using Dot 5 brake fluid.   Is it a mistake to use Dot 5
> > instead of Dot 3?   Since everything was new I figured that I could
> > use Dot 5.
> 
> I don't know, I've always used DOT 3...
> 
> Paul
> 
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