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Thread: Valley cover pin hole repair

  1. #11
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    Quote Originally Posted by SMXT View Post
    If you join the Leyland P76 Club you can purchase the P76 V8 valley gaskets new (remanufactured) from their spare parts section.
    That's good to know, I have a new one for a project motor.
    MY08 TDV6 SE D3- permagrin ooh yeah
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  2. #12
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    Quote Originally Posted by SMXT View Post
    If you join the Leyland P76 Club you can purchase the P76 V8 valley gaskets new (remanufactured) from their spare parts section.
    Thanks SMXT
    I was considering joining a P76 group because I suspected they would have solved all of the problems I’m likely to come up against.

    Phil

  3. #13
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    Pinholes in valley gasket

    You have received good advice here so only consider my suggestion as one other option.

    I have worked with epoxies for many years and never cease to be impressed at what can be achieved

    The secret - as noted for other methods, is to get the area absolutely free of grease and oil using isopropyl ahcohol or wax and grease remover. If accessible, it never hurts to scuff the substrate to provide a better bond. There are many different epoxies (I use Botecoat) but even Araldite will do. Do NOT use polyester resin! There are different brands available from a parts store. Whatever you use, mix it thoroughly to get a spreadable consistency.

    Though it can be used on its own, applied with a stiff brush or a spatula., an even better option is to combine the epoxy with a layer of suitable material like a thin metal sheet, or fibeglass cloth. Lay down some epoxy first, then the reinforcing layer, tamp it down and put more epoxy over the top.

    Actually this is very easy to do and the repair will be stronger than the original metal.

    Good luck with whatever you decide to do.

  4. #14
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    Quote Originally Posted by aussiebushman View Post
    but even Araldite will do.
    I would definitely not use Araldite in this application - its max temp range is 65c when it then starts to go soft and lose adhesion. The temp in the valley cover can easily exceed that is some circumstances.

    Garry
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  5. #15
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    e spec sheet for standard araldite.
    strength is linear to 80c.

    Microsoft Word - HU_Araldite_Standard_eur_e.doc (chemcenters.com)
    Regards PhilipA

  6. #16
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    All well and good but the Araldite website says -30 to 65 Araldite(R) Standard 2 x 15ml

    However if it will hold up at 80c that is still not high enough for comfort - my TM2 Combo often shows the metal temp of the engine above 80 on a hot day when stopped at the lights at idle or when the engine is stopped for a little while and the heat soak from deep in the engine starts to heat the extremities.

    Just not worth the risk - in my younger days I have used it on hot stuff like radiator leaks and it always failed.
    REMLR 243

    2007 Range Rover Sport TDV6
    1977 FC 101
    1976 Jaguar XJ12C
    1973 Haflinger AP700
    1971 Jaguar V12 E-Type Series 3 Roadster
    1957 Series 1 88"
    1957 Series 1 88" Station Wagon

  7. #17
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    Quote Originally Posted by 101RRS View Post
    I would definitely not use Araldite in this application - its max temp range is 65c when it then starts to go soft and lose adhesion. The temp in the valley cover can easily exceed that is some circumstances.

    Garry
    Moi...... someone who has worked with all this stuff in many different applications over 40+ years......

    No way I'd use it in that application.

    DL

  8. #18
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    Quote Originally Posted by 101RRS View Post
    I would definitely not use Araldite in this application - its max temp range is 65c when it then starts to go soft and lose adhesion. The temp in the valley cover can easily exceed that is some circumstances.

    Garry
    Moi...... someone who has worked with all this stuff in many different applications over 40+ years......

    No way I'd use it in that application.

    DL

  9. #19
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    Quote Originally Posted by 350RRC View Post
    Moi...... someone who has worked with all this stuff in many different applications over 40+ years......

    No way I'd use it in that application.

    DL
    Apologies - you are correct. When recommending epoxy, I was swayed by my positive experiences using epoxy thickened with heat-tolerant fillers, one example of which was on the engine block of a damaged Gardner Diesel engine. Personally, I am not a fan of Araldite so I'm not sure why I even mentoned it

  10. #20
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    I used it to seal/refill the plug on a TD5 injector wiring loom after reading 80C max strength limit but stable but softened to 150C.

    Funnily enough the replacement loom has never given me a problem in about 6 years so the loom is still hanging in the garage unused.( it must be the talisman effect. If you have a spare it will never fail).
    Regards PhilipA

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