Re: [FWDLK] Honing-out a master cylinder

[Eastern Sierra Adjustment Svc <esierraadj@xxxxxxxxxxx>]

Yeah, thanks, Bill....

I wonder why someone would "overhaul" a single-pot (it's exterior looks 
great, in the one profile
view of it) resevoir, but not go the extra-step and sleeve it, too?

Besides the exit-orifice,  and the brake light switch orifice, can these 
guys also leak at their rear ends?

Back in 1982 (having owned my car for a couple years, then) on a 
car-show trip to Reno, I was descending a steep
hill, and discovered that I (or, rather, my 57 Dodge) had no brakes.

The handbrake saved property damage and probable bodily injury, but it 
made for an interesting stoppage
at a gas station, on that corner across the street, at the bottom of 
that hill.

Turned out that the brake switch orifice leaked, a little bit, every 
time the brakes were applied. The leakage, down
the resevoir body, had not been noticible, and there had been no 
soft-pedal, etc., warning, before the brakes went
away.

I've now got an overhauled, and sleeved, dual-pot master  cylinder  
installed on my car.

Neil Vedder



William Huff wrote:
> Sort of depends what was really done.  Sometimes a light honing will 
> clean up a cylinder without materially enlarging the bore.  On the 
> other hand, if there serious rust or pitting and that was honed out, 
> then the cylinder might need sleeving.  I personally wouldn't be 
> afraid to use the cylinder if the bore was clean, round, straight and 
> only a few thousandths over standard.  Anything more than .020" or so 
> I would consider suspect.  I think you need the cylinder measured to 
> make a decision.
>
> Bill Huff
>
>
>
> At 6/30/200911:58 AM, eastern sierra Adj Services wrote:
> > On the Evilpay, now, is an overhauled single pot master cylinder.
> >
> > The seller confirms only that its orifice(s) has/have  been "honed out".
> >
> > Shouldn't one, or both of the line connections to its cast iron body be
> > SLEEVED or bushed with a steel insert, too, to prevent leakages?
> >
> > Neil Vedder
> >
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