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Thread: Bleeding 300TDi R380 clutch

  1. #11
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    Quote Originally Posted by TonyC View Post
    I put the slave up the other way, bleed at the top, maybe that's my problem, the air isn't getting trapped 🤔
    Way back in my army days we had problems with the front brakes on IIAs. These had two front wheel cylinders each wheel, mounted top and bottom.The flex hose fed into the top cyl, there was a pipe top to bottom, and a bleeder at the very bottom. You can probably guess that we had difficulty getting a decent pedal. They even went to the trouble of getting someone from Girling (? I think. Brake 'expert' at any rate ) to come and look. His solution was to unbolt the backing plate and turn it upside down to bleed and then put it back. My suggestion that it would be quicker to invert the whole car was not well received. Stupidest thing I had ever heard, up until then. I can't remember how it was resolved, or if they were all like that. John's suggestion might have worked on those as well.


    Quote Originally Posted by TonyC View Post
    One the subject of odd round thing Discos have, what is the thing that look a bit like a harmonic balancer on the front diff just near the drive flange? My Defender doesn't have one of those either.

    Tony
    Dunno. Always assumed it was a damper of some sort.
    ​JayTee

    Nullus Anxietus

    ​Getting involved in discussions is the best way to learn.

    2000 D2 TD5 Auto: Tins
    1994 D1 300TDi Manual: Dave
    1980 SIII Petrol Tray: Doris
    OKApotamus #74
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  2. #12
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    My Young bloke just had the same problem, pushrod had punched through the clutch fork.

    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
    '58 Series II (sold)
    Motorcycles :-
    Vincent Rapide, Panther M100, Norton BIG4, Electra & Navigator, Matchless G80C

  3. #13
    TonyC is offline Master Silver Subscriber
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    Quote Originally Posted by gromit View Post
    My Young bloke just had the same problem, pushrod had punched through the clutch fork.

    Colin
    I think it's the pivot that punches though the fork, but the result would be the same, gearbox out.

    Our problem with clutch bleeding could have been avoided by not disconnecting the line from the slave.

    We did the clutch in the garage, front wheels on ramps, having done it I'm going to buy a host, I'm to old for this crawling around under cars caper, and I don't consider myself that old 😁

    Tony

  4. #14
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    Quote Originally Posted by TonyC View Post
    I think it's the pivot that punches though the fork, but the result would be the same, gearbox out.

    Our problem with clutch bleeding could have been avoided by not disconnecting the line from the slave.

    We did the clutch in the garage, front wheels on ramps, having done it I'm going to buy a host, I'm to old for this crawling around under cars caper, and I don't consider myself that old 😁

    Tony
    Yes, I meant the pivot.
    He's driving the Disco to the garage where he works (without the clutch) and dropping the gearbox with the help of a hoist and a transmission jack.

    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
    '58 Series II (sold)
    Motorcycles :-
    Vincent Rapide, Panther M100, Norton BIG4, Electra & Navigator, Matchless G80C

  5. #15
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    Quote Originally Posted by TonyC View Post
    Our problem with clutch bleeding could have been avoided by not disconnecting the line from the slave.

    We did the clutch in the garage, front wheels on ramps, having done it I'm going to buy a host, I'm to old for this crawling around under cars caper, and I don't consider myself that old 😁

    Tony
    My son has helped me with two D1 R380s and one D2 auto, all on our backs. He now has a hoist and a Patrol.

    As for not disconnecting the slave? Spot on. 2nd time we did that.
    ​JayTee

    Nullus Anxietus

    ​Getting involved in discussions is the best way to learn.

    2000 D2 TD5 Auto: Tins
    1994 D1 300TDi Manual: Dave
    1980 SIII Petrol Tray: Doris
    OKApotamus #74
    Nanocom, D2 TD5 only.

  6. #16
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    Quote Originally Posted by Tins View Post
    It's a "Hydraulic Damper". Apparently for the diesel only. I've wondered if it has anything to do with the bleeding issue.
    I did a clutch bleed on a Camry once with a damper fitted and it turned the job into a nightmare. Only solution short of incinerating the vehicle was a prolonged gravity feed.

    Therefore, I would propose an emphatic "yes"!

  7. #17
    TonyC is offline Master Silver Subscriber
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    I wonder what the damper achieves?
    Seems like technology for technology's sake.
    My Defender is OK without it.

    Tony

  8. #18
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    Quote Originally Posted by TonyC View Post
    I wonder what the damper achieves?
    Seems like technology for technology's sake.
    My Defender is OK without it.

    Tony
    Well, it certainly puts a damper on your mood if you have to bleed the clutch.

    I wonder how much difference there is between the two vehicles, in the mechanical advantage of the cylinders and the fork. I would have thought none. And why is it only fitted to the diesels?

    I suppose there could be some NVH reason.
    ​JayTee

    Nullus Anxietus

    ​Getting involved in discussions is the best way to learn.

    2000 D2 TD5 Auto: Tins
    1994 D1 300TDi Manual: Dave
    1980 SIII Petrol Tray: Doris
    OKApotamus #74
    Nanocom, D2 TD5 only.

  9. #19
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    The damper slows clutch release to avoid "dropping the clutch" inadvertantly. A lot of modern manual cars have one in the circuit.

  10. #20
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    Quote Originally Posted by reefmagnet View Post
    The damper slows clutch release to avoid "dropping the clutch" inadvertantly. A lot of modern manual cars have one in the circuit.
    Dunno if I'd call a 1994 D1 "modern".
    ​JayTee

    Nullus Anxietus

    ​Getting involved in discussions is the best way to learn.

    2000 D2 TD5 Auto: Tins
    1994 D1 300TDi Manual: Dave
    1980 SIII Petrol Tray: Doris
    OKApotamus #74
    Nanocom, D2 TD5 only.

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