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Re: [TR] clutch hydraulics query

To: Triumphs@autox.team.net
Subject: Re: [TR] clutch hydraulics query
From: Dave1massey@cs.com
Date: Thu, 26 Mar 2009 15:36:32 EDT
In a message dated 3/26/2009 2:18:15 PM Central Daylight Time, 
jimmuller@rcn.com writes: 
> I'd suspect a sticky slave cylinder except that this morning it seemed to 
> have come on when I wasn't using the clutch at all.  At least not that I 
> recall.  Okay, maybe once.  An alternate stickiness factor could be the 
>clutch arm 
> scraping against the tunnel cover.  I can check it but it's one of those 
> space-age plastic covers with no dangling insulation underneath, so I doubt 
>this 
> possibility.  It really seems to correlate to heat.
> 
> So the question:  Is there evidence to suggest that brake fluif expands 
> noticeably with moderate heat?  (It isn't getting especially hot.)  Perhaps 
>older 
> fluif that might have absorbed water sitting even in an opened once but 
> tightly sealed container?
> 
I suspect the master cylinder.  Perhaps it is as Joe says and the piston is 
not returning completely.  Or the little cup on the spring on the end that 
opens the port to the reservoir allowing the excess fluif to return as things 
heat 
up became detached from the piston.

Cheers

Dave
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