Results 1 to 6 of 6

Thread: RR Brake Master Cylinder

  1. 20th August 2006, 10:59 AM #1
    one_iota's Avatar
    one_iota
    one_iota is offline Moderator Gold Subscriber
    Join Date
    Jul 2003
    Location
    Sydney's gritty inner west (2204) and verdant Mount Wilson
    Posts
    7,445
    Total Downloaded
    0

    RR Brake Master Cylinder

    Spent yesterday helping CJ with the fitting of a refurb kit on his 85 RR master cylinder...(the county project deferred ).

    The shuttle valve seems to be stuck in the bore and therefore only the secondary system is getting fluid.

    Has any one had this issue and solved it without replacing the master cylinder?
    Mahn England

    DEFENDER 110 D300 SE '23 (the S M E G)

    Ex DEFENDER 110 wagon '08 (the Kelvinator)
    http://www.aulro.com/afvb/members-rides/105691-one_iotas-110-inch-kelvinator.html

    Ex 300Tdi Disco:


    Reply With Quote Reply With Quote
  2. 20th August 2006, 06:03 PM #2
    one_iota's Avatar
    one_iota
    one_iota is offline Moderator Gold Subscriber
    Join Date
    Jul 2003
    Location
    Sydney's gritty inner west (2204) and verdant Mount Wilson
    Posts
    7,445
    Total Downloaded
    0
    CJ reports that whilst the swivel valve remains siezed the brakes are now working fine. Only the warning light mechanism is suspect

    For those without the RAVE disc the link to the page posted above is:

    http://www.landrover.ee/est/files/ma...rrm_brakes.pdf
    Mahn England

    DEFENDER 110 D300 SE '23 (the S M E G)

    Ex DEFENDER 110 wagon '08 (the Kelvinator)
    http://www.aulro.com/afvb/members-rides/105691-one_iotas-110-inch-kelvinator.html

    Ex 300Tdi Disco:


    Reply With Quote Reply With Quote
  3. 21st August 2006, 10:06 AM #3
    Scouse's Avatar
    Scouse
    Scouse is offline OldBushie Gold Subscriber
    Join Date
    Jan 1970
    Location
    Douglas Park, NSW
    Posts
    9,347
    Total Downloaded
    0
    Mahn,
    I rebuilt my master cylinder a few weeks ago & found my shuttle valve was tight in the cylinder. It took quite a lot of air to get it out enough to reach in with a pair of long nosed pliers to pull it all the way out.

    I also had a M/C that was returned under Parts Warranty as I thought my bore would have been worn by now. This shuttle valve came out easily.

    After cleaning & fitting new seals, it all went back together easily enough.
    I assume if the shuttle valve hasn't moved for quite a few years, then it might stick in position.

    The brakes can work OK with a seized shuttle valve but I'm worried that it won't do it's job in the event of fluid loss from one of the brake circuits.
    Scott
    Reply With Quote Reply With Quote
  4. 21st August 2006, 02:17 PM #4
    LRHybrid100's Avatar
    LRHybrid100
    LRHybrid100 is offline YarnMaster Gold Subscriber
    Join Date
    May 2002
    Location
    Sydney, Australia
    Posts
    3,424
    Total Downloaded
    0
    bugger - thats sounds like mine.

    I have just sent mine in for Master cylinder replacement while I am away

    LRH
    Disco 4 SDV6 Auto
    Disco 4 SDV8 Dual Cab Project
    Disco 2 M57 Extra Cab Project
    Foton Tunland Cummins ISF
    Disco 1 3 door 4.6 V8 Auto
    RRC V8 Auto "Classic" Softdash
    RRC 300 TDI Auto
    Disco 1 TD5 Auto Buggy
    Disco 1 300 Tdi Auto Ute
    SAME Explorer 70HP 4x4 Tractor plus Nell Loader
    Subaru GDA WRX
    Triumph Bonneville SE
    Yamaha TTR250




    Reply With Quote Reply With Quote
  5. 21st August 2006, 07:41 PM #5
    one_iota's Avatar
    one_iota
    one_iota is offline Moderator Gold Subscriber
    Join Date
    Jul 2003
    Location
    Sydney's gritty inner west (2204) and verdant Mount Wilson
    Posts
    7,445
    Total Downloaded
    0
    CJ's MC appears to have been resleeved with a stainless steel bore but the swivel valve bore was as cast and there was a fair bit of corrosion.

    I guess that that is why RR went to a Girling set up from the preceeding AP kit in late 87.

    Never the less CJ and I had a pleasant afternoon at Land Rover Heaven (LVS) on Saturday Arvo...I missed out on a set of alloys from a wrecked Rossignol Disco though $350
    Mahn England

    DEFENDER 110 D300 SE '23 (the S M E G)

    Ex DEFENDER 110 wagon '08 (the Kelvinator)
    http://www.aulro.com/afvb/members-rides/105691-one_iotas-110-inch-kelvinator.html

    Ex 300Tdi Disco:


    Reply With Quote Reply With Quote
  6. 22nd August 2006, 01:19 AM #6
    DEFENDERZOOK's Avatar
    DEFENDERZOOK
    DEFENDERZOOK is offline OldBushie
    Join Date
    Jan 1970
    Location
    SYDNEY -in the shire.....
    Posts
    8,196
    Total Downloaded
    0
    regular brake fluid changes will prevent or reduce these problems.....
    as brake fluid is hydroscopic.....it is the moisture it absorbs that causes all the damage.....

    so....if it is changed more often....it wont have a chance to absorb too much water......which means less or no corrosion......
    Reply With Quote Reply With Quote
« Range Rover Classic wheel-bolts | Fairey Overdrive whine »

Bookmarks

Bookmarks

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •  

Forum Rules

Search AULRO.com ONLY!
 Search All the Web!