[ROVERNET - UK] Brakes dual system
geffandjulie
geffandjulie at comcast.net
Fri Apr 28 06:05:32 BST 2006
Perfect descriptoin of my symptoms. Will use your diagnostics. Thanks much!
----- Original Message -----
From: "Steven Dibdin" <sdibdin at hotmail.com>
To: <rovernet at lyris.ccdata.com>
Sent: Thursday, April 27, 2006 6:23 AM
Subject: RE: [ROVERNET - UK] Brakes dual system
> Hi Jeff and Julie,
>
> I've just done a rebuild on both the servos on my 2000TC. After much help
> and advice from Eric Russell and Ruth Burgess. The symptoms you mentioned
> sound pretty familiar. Firm/dead pedal feel=no servo effect. Slow release
> of brakes means the air valve isn't seating properly and letting
> atmospheric pressure in (effect putting the brakes on with you.).
>
> Lose of fluid with out an obvious leak could mean its filling the vacuum
> chamber on the servo. Eric's tip was to pull out the vacuum hose and the
> check valve on the vacuum chamber and tape a piece of rag on the end of
> some wire. Insert into the hole and see if it comes out with brake fluid
> on the rag. This saves you having to take it apart to find out if its
> leaking. If you do have to at least you can rebuild the servos, the kits
> are out there, I got mine from Ruth Burgess at ABC
>
> One question: You said you knocked off the top of the air valve when you
> where working on the system, did you lose the spring that helps the valve
> seat? if that's gone it can stop the valve closing reliably. I'm guessing
> that you have a 3500s with the air valve on the master cylinder? From what
> I've seen I think the air valves are pretty similar on both the 3500s and
> the 2000TC except the 2000 has them on the servo units instead of on the
> cylinder.
>
> Check out the RCCC website they have a fair amount of stuff on servo
> rebuilds etc....
>
> Any way, I hope my ramblings help in some way. It's stuff I've learnt from
> others on RoverNET to be honest.
>
> Regards,
>
> Steven Dibdin
>
>
>
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