The bore will wear out over time - premature wear is caused by fluid
contamination i.e. not change regularly (every 12 months recommended). The
rubber cups usually wear out first and replacements used to be just a tad
bigger to allow for a small amount of bore wear. At $11 the kit for you
cylinder to be worth a try, especially for a clutch as it's not really life
threatening if it fails. Brakes are another matter, that's why I always pull
down and clean a 2nd hand JY cylinder no matter how good it looks and I'm
not an advocate of re-kiting brake master cylinders.

A clutch master cylinder should wear out at a much quicker rate than a brake
cylinder just from the usage alone. Count how many gear changes you do on
the way to work one day - also a clutch cylinder piston travels the full
stroke on each application, so it's easy to see that a clutch rubbers work
pretty hard.

Most Repco parts are pretty good even the Taiwanese stuff so I'd expect
you'd get somewhere between 2 & 5 years out of it - seeing as it's Taiwanese
anything over two years is a bonus and at $14, it doesn't owe you much
either.

regards
Terry

-----Original Message-----
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED]]On Behalf Of Paul W. J.
Stanley
Sent: Saturday, 5 May 2001 12:34
To: [EMAIL PROTECTED]
Subject: Re: slippery floor


what would cause the bore to get out of round? the piston wearing it out
when the rubber is worn? I have priced the master clutch kit and they are
$11 from Repco...do the master clutch cylinders (also worth about $110 from
Repco) wear out the same as the master brake cylinders? I've got a nice
Taiwanese clutch slave cylinder in my 200B...the whole thing was $14 from
Repco...wonder how long it will last.

----- Original Message -----
From: Terry Rudd <[EMAIL PROTECTED]>
To: <[EMAIL PROTECTED]>
Sent: Friday, May 04, 2001 7:43 PM
Subject: RE: slippery floor


> James,
>
> These days you are better off replacing it unless the bore is in good
> condition and the kit is a reasonable price; the latter I have found over
> the past couple of years not to be the case. The other option is to get
> another cylinder roughly the same. The Nabco dual cylinder for a B10 is
> 11/16" but a 3/4" off a 180B should work OK.



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