[TR] TR6 brake master cylinder

[rbtr3a at cox.net]

I have flushed using denatured alcohol then flushed with compressed air at low psi 

Ronnie

> On Mar 29, 2016, at 11:06 PM, Cliff Hansen <cliff_hansen at outlook.com> wrote:
> 
> I had to change all the hoses - they all leaked after I switched to DOT5. I'd already rebuilt the calipers and cylinders and had new brake lines  I suppose I shouldn't had reused the hoses.
> 
> Cliff
> 
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> 
> 
> 
> On Tue, Mar 29, 2016 at 7:29 PM -0700, "Dave Connitt" <dconnitt at fuse.net> wrote:
> 
> Randall,
> Interesting. I have been running DOT3 in my TR4A since I got the car
> drivable (about 2 years now) and only used DOT3 because there was a big
> sticker on the side of the master cylinder telling me "USE ONLY DOT 3 BRAKE
> FLUID OR WARRENTY IS VOID". I was wondering how big a PIA it would be to
> flush out the DOT3 fluid and replace it with DOT5. I have read many posts on
> this list where people have used DOT 5 with no issues so I am considering
> changing over as I should probably replace the current fluid after 2 years
> anyway.
> Dave Connitt
> 
> -----Original Message-----
> From: Triumphs [mailto:triumphs-bounces at autox.team.net] On Behalf Of Randall
> Sent: Monday, March 28, 2016 4:09 PM
> Cc: triumphs at autox.team.net
> Subject: Re: [TR] TR6 brake master cylinder
> 
> 
> > That was going to be my next question. About how carefully one had to 
> > drain the dot 4 when installing dot 5. It sounds like I can put in my 
> > fresh MC, fill it with silicone, then bleed each brake till I see 
> > purple fluid.
> 
> Another contested question.  My experience is as Paul said, just "bleeding
> through" will not remove all of the old brake fluid from the system.
> However, I saw no ill effects from the small pockets of old fluid left over.
> The DOT 5 will not mix with the old fluid, and is slightly less dense, so
> you get little pockets of fluid in corners that don't get used (like the
> base of the rear slave cylinders).  The DOT 5 also surrounds it, so it can't
> promote corrosion (and I assume not absorb water or salt).
> 
> Main disadvantage seems to be that the remaining DOT 3/4 will suck all the
> purple dye out of the DOT 5.
> 
> Randall
> 
> 
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