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Thread: Advice needed...

  1. #41
    Join Date
    Jan 2013
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    Yarra Valley, Victoria
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    Clutch Drama's

    I've had exactly this problem myself on a '98 Defender. It is easier to pull the engine out than to remove the gearbox if you don't have a hoist and a transmission jack. Access to the clutch is also easier. In my case the clutch "failed" because the pivot point for the clutch release fork wore a hole in the fork where they make contact. And the cause of that (my fault) was lack of lubrication. It is essential that this pivot point is well greased with HTB on assembly.
    Having gone to the trouble of separating engine and gearbox I'd examine the clutch parts and flywheel surface for damage, but I'd probably install a new clutch kit anyway. Damage to the flywheel (if any at this stage of its life) could only be due to abuse - riding the clutch, wading in dirty/salty water, towing excessively heavy loads etc.
    Trust this helps, Rob S

  2. #42
    Join Date
    Mar 2015
    Location
    Adelaide
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    Advice Needed - SA LR Specialists

    [QUOTE=There are a couple of other Landy specialists in SA though...anyone in SA???...right??? [/QUOTE]

    My personal recommendation, for what it's worth, would be to get in touch with Peter Brown, PCB Landrover,

    PCB Independent Landrover Specialists - Servicing, Repairs, Modifications & Spare Parts

    Peter has always been very helpful, even when answering 'emergency calls' from remote places in central Australia. He and his small team knows their stuff and while they are at Nth Plympton and therefore a little further from you it seems, from my experience they do a great job. I've had my earlier D2a and now my D4 serviced with PCB. Excellent service. They are also so a major sponsor of the annual South Australian Land Rover Show at Blinman every Easter, so put back into the LR community in SA.

    I'd also check the seals on the clutch master/slave cylinders first, before heading down the much more expensive job of replacing clutches and flywheels, particularly on a low mileage vehicle like you have.

    Good Luck
    Craig

  3. #43
    Join Date
    Nov 2012
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    Kingsley, Perth
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    my flywheel cost me $90 i think to have machined when i did the clutch myself. put a valeo HD clutch in there. new slave cylinder. didn't cost me much at all. if there is no major cracking on it then i don't see why you would replace it. just get it machined. while he is there get the rear main seal done and the gearbox seal. the little rod that pushes your clutch fork could just have slipped or your fork was not a HD one with the steel plate welded on the back of where your rod goes. they used to eventually punch a hole through your fork. so the HD version they welded some steel plate to the other end to strengthen it.

  4. #44
    Simeon Guest
    Your symptoms suggest that it is a problem with the clutch hydraulics first and foremost. This is a job that can be completed without pulling the gearbox or replacing the clutch. Get someone to rule this out first.

    How is the level in the clutch fluid? The master cylinder can fail so that the fluid passes the seals so that the pedal flops about without leaking fluid.

    Rule out the hydraulics first before getting stuck into the more expensive parts.

  5. #45
    Join Date
    Jan 1970
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    Narre Warren South
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    Quote Originally Posted by Simeon View Post

    Rule out the hydraulics first before getting stuck into the more expensive parts.
    I had exactly the same symptom as the OP with my Defender years ago.
    Removed the slave cylinder and got covered in brake fluid from the bell housing. Fitted a seal kit costing a few dollars and I was back in action.

    It was still under secondhand warranty from the dealer, phoned them up and was told 'bring it in and we'll have a look'. I asked how I was going to do this without a clutch and suggested a tilt tray at their expense. After some negotiations they provided a new slave cylinder but delivery was a couple of days..... by then I'd fixed it and the new slave went into stock.

    The clutch fork is a known weak area but as suggested, check the hydraulics first.


    Colin
    '56 Series 1 with homemade welder
    '65 Series IIa Dormobile
    '70 SIIa GS
    '76 SIII 88" (Isuzu C240)
    '81 SIII FFR
    '95 Defender Tanami
    Motorcycles :-
    Vincent Rapide, Panther M100, Norton BIG4, Electra & Navigator, Matchless G80C, Suzuki SV650

  6. #46
    Pcm2048 Guest

    Clutch Damper

    Quote Originally Posted by Old Farang View Post
    Well, I'll bite! Please, what is a clutch damper?
    Sorry for the late response. The clutch damper is located in the hydraulic line between the slave cylinder and the master cylinder. It is the circular thingy bolted to the bell housing and can be readily accessed from under the car. They are not serviceable so I do not know what the Discovery 1 looks like inside, but they typically are some sort of springy material with a diaphragm to seal the fluid. When you push in the clutch, it acts as a damper on clutch operation to smooth the operation. If they fail, when you push in the clutch, all the fluid is absorbed into the damper and the clutch wont operate. Many people recommend that you remove them, but I cannot see any reason to do that as you then need new hydraulic lines and that costs more and takes more time than just replacing the damper. It take about 30 minutes to replace including the time to bleed the clutch and can be had for under $60. Should always be done when the clutch is replaced.

    One thing to watch for is that the master cylinder line must go into the bottom connection, and the slave cylinder into the top connection, so that any air will flow through to the bleed nipple on the slave cylinder. Do it the other way and you will never bleed the clutch properly.

    One thing that can help diagnose a faulty clutch damper is that they sometimes wont fail catastrophically. If you pump the clutch you "might" get a pedal, and sometime it will work intermittently, or will work with the pedal almost on the floor. No guarantees though.

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