I totally agree. Aluminum pistons and master cylinders shouldn't be rebuilt
if they were leaking prior to the rebuild as the bores are probably
pitted/scored from corrosion and dirt. Your life is worth more than $150 or
so and the idea of breaking down in the middle of nowhere because of clutch
problems isn't a particularly enticing proposition.
Mike
----- Original Message -----
From: "Marc Sayer" <marcsayer@home.com>
To: "datsun roadster mailist" <datsun-roadsters@autox.team.net>
Sent: Wednesday, November 14, 2001 7:14 PM
Subject: Re: Clutch master cyl
> Generally aluminum cylinders are not considered rebuildable. 9 times out
of 10
> the rebuild will last only a few months or less. The reason is that the
bore on
> an aluminum cylinder is hard anodized. Wear and/or honing will usually eat
> through the anodizing in at least some spots. This will lead to a leak
rather
> quickly. It's almost always smarter just to replace the cylinder if it
needs
> rebuilding, or to have it sleeved with brass or stainless and then rebuild
it.
> If the cylinder is NLA new than resleeving makes sense. Otherwise it is
cheaper
> to just buy a new cylinder most times. Beware the shop that is willing to
> rebuild an aluminum master cylinder. Unless there is an overriding reason
to do
> so, it isn't good business. I for one would run, not walk, away from most
any
> shop that would be willing to do it. Does it work now and then? Yep. Is it
a
> good idea? Nope.
>
> Russell Southwell wrote:
> >
> > I bought a couple of master cyl kits on Ebay,to repair my leaking one in
> > my 70 1600. since i had one out of a 69 2L i tore it apart and thats
> > when i found not all
> > 5/8 cyl are the same my kit # k-c320-001 fits 2 of my cylinders( the
> > short nabco)
> > but there is also a long nabco cyl that has a screw in the bottom that
> > holds the plunger in the cyl. so make sure you know what type cyl you
> > have before you get a kit. I was luky enough to have 4 parts cars.
> > Russ Southwell
> >
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>
> --
> Marc Sayer
> 82 280ZXT
> 71 510 2.5 Trans Am vintage racer
>
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