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Thread: Clutch Pipe Materials

  1. #1
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    Clutch Pipe Materials

    Hello All,

    My Series 3 diesel has had what looks to be a rubber-type hydraulic hose fitted to it - something like an ENZED special. The hydraulic pipe runs between a short metal pipe that comes out of the clutch master cylinder. There is a similarly short metal pipe that connects to the clutch slave cylinder. All the fittings between the metal pipe lengths and the long hydraulic hose are threaded.

    Would this set up pass a road worthy inspection?

    All my other Series 3 land rovers have all metal pipes that run from clutch master cylinder to clutch slave cylinder!

    Do all the clutch pipes legally need to be the metal type?


    Kind Regards
    Lionel

  2. #2
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    As long as the hose is a brake hose, or designed for use in a brake system it will. The vehicle would have had a flexible hose as standard in the location you describe.
    I would assume that if the hose as been there a while and the clutch is working that the hose is indeed designed for this purpose.
    Cheers, Martin

  3. #3
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    Quote Originally Posted by marting View Post
    As long as the hose is a brake hose, or designed for use in a brake system it will. The vehicle would have had a flexible hose as standard in the location you describe.
    I would assume that if the hose as been there a while and the clutch is working that the hose is indeed designed for this purpose.
    Cheers, Martin
    Hello Martin,

    Thank you for the reply. The pipe is of unknown history and origin from a previous owner - or 2, or 3 or...

    The other Series 3 Land Rovers I have feature short lengths of steel braided pipe that bend around from a bracket fixed on the fire wall and then goes over the bell housing and connects to more metal pipe. It then connects at a bracket and goes into a braided steel/rubber pipe near the slave cylinder.

    The pipe currently on the diesel is un-braided and runs about 10 cm short from the clutch master cylinder one end and 10 cm short from the clutch slave cylinder. At either end of the black hose are the threaded fittings that connect to the metal pipes that feed into either clutch master cylinder or the clutch slave cylinder.

    Not knowing any better I suspect it is a bodgey job that has never had a vehicle inspection. It is a Queensland vehicle after all

    Kind Regards
    Lionel

  4. #4
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    I would not say bodgey. Just different to a normal land rover set up. Is the rubber hose ribbed ? All the brake and clutch hoses I have come across are. Another check is a bit messy but would be good. Undo any any end and see if the pipe has a double flare on it as it should. The brackets that the land rover pipes use are necessary as they would reduce vibration of the steel pipes. There is no real issue running rubber all the way from the master to the slave other than rubbing some where.
    Cheers Hall

  5. #5
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    Parts Drawings

    Hello All,

    The metal pipes that remain fitted to the Series 3 diesel are modified versions of the following parts numbers in the two attached pages out of a parts catalogue: From Clutch Master cylinder 577687 and from the Clutch Slave Cylinder 594776.

    So what is currently there is 577687 joins on to black hydraulic pipe that joins on to 594776.

    The black hydraulic hose runs in between the two parts. No there are no attachments to any brackets as they must have been cut off by a previous owner. The whole hose is unsupported along its full length.

    The following parts numbers from the Clutch Master cylinder are absent: 592510 & 592383


    Kind Regards
    Lionel
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  6. #6
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    Quote Originally Posted by Hall View Post
    I would not say bodgey. Just different to a normal land rover set up. Is the rubber hose ribbed ? All the brake and clutch hoses I have come across are. Another check is a bit messy but would be good. Undo any any end and see if the pipe has a double flare on it as it should. The brackets that the land rover pipes use are necessary as they would reduce vibration of the steel pipes. There is no real issue running rubber all the way from the master to the slave other than rubbing some where.
    Cheers Hall
    Hello Hall,

    Inspired by what you wrote about checking the pipe for a double flare I went into the shed armed with a torch and rotated the pipe for a better inspection. During this rotation I saw some white writing that I have never seen before. It says...

    Parker Parflex 500N ON - 4 SAE 100 R7 2750 psi (190 bar) Use 54/55 series fittings. Similar to this stuff on eBay http://www.ebay.com/itm/Parker-Parfl...item258bf5d92d

    I am not sure what the codes all mean however the rating of 2750 psi is a bit of a confidence builder.

    Kind Regards
    Lionel

  7. #7
    Timj is offline Wizard Silver Subscriber
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    Hi Lionel,

    Both my Series 3s have metal pipe on the firewall and on the engine with a flex pipe between them. I have just looked up the parts manual and that is the way it should be according to that.



    Cheers,

    TimJ.
    Snowy - 2010 Range Rover Vogue
    Clancy - 1978 Series III SWB Game.
    Henry - 1976 S3 Trayback Ute with 186 Holden
    Gumnut - 1953 Series I 80"
    Poverty - 1958 Series I 88"
    Barney - 1979 S3 GS ex ADF with 300tdi
    Arnie - 1975 710M Pinzgauer

  8. #8
    Timj is offline Wizard Silver Subscriber
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    Damn, just saw you had posted that while I was working out how to get the picture up . If it really worries you that pipe is available from any of the usual suppliers, I have bought one from FWD here in Brisbane before.

    TimJ.
    Snowy - 2010 Range Rover Vogue
    Clancy - 1978 Series III SWB Game.
    Henry - 1976 S3 Trayback Ute with 186 Holden
    Gumnut - 1953 Series I 80"
    Poverty - 1958 Series I 88"
    Barney - 1979 S3 GS ex ADF with 300tdi
    Arnie - 1975 710M Pinzgauer

  9. #9
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    Quote Originally Posted by Timj View Post
    Damn, just saw you had posted that while I was working out how to get the picture up . If it really worries you that pipe is available from any of the usual suppliers, I have bought one from FWD here in Brisbane before.

    TimJ.
    Hello TimJ.

    My main concern was trying to get passed what an Authorised Inspector at a mechanics, or the Department of Transport Inspector might find unusual. As the vehicle has not been registered for years and never by me.

    Seeing that the pipe is made by a reputable manufacturer, and as you say it is readily available, is a bit of a weight off my mind. I have to get the two lengths of pipe 577687 (Master Cylinder pipe) and 594776 (Clutch slave cylinder pipe) re-made anyway.

    I will use the Parker Parflex pipe and make some brackets for it so it is not floating around and looks like a professional person installed it. Hopefully by doing that it does not raise any undue attention during inspection.

    Kind Regards
    Lionel

  10. #10
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    If you don't have a flexible component in the system your pipes will crack from the constant vibration.

    I replaced the rubber hose on my IIA with a braided one (was expensive) and the clutch pedal improved out of sight.

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