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Thread: Valley cover pin hole repair

  1. #31
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    shim brass or tin, wire wheel the gasket top, use acid flux (zinc chloride) paint it over the edge of the shim stock and the gasket so it fits neat.
    Tack in place with soldering iron, then solder in place along entire edge.
    It won't be the prettiest fix, but if you could obtain some 0.6 or 0.8 bright tin / zinc plate from a sheetmetal guy, then you will get a pretty good result. You theoretically could make a new one out of 0.6mm and a bit of grey threebond, if you had time and patience and a good punch set.

    Using a gas soldering iron (primus / sievert torch) and 70/30 sticks (plumbers solder) the job will take you max 10 min - assuming of course that you know how to use the big copper wedge irons. Once the copper block is hot enough, it won't take very much to run the entire edge seam and the job's done.

    Part of me reckons that you'd probably find a valley pan gasket before you found a replacement piece of shim / sheetmetal stock to repair it...

    World we live in.... can never find what you want when you need it and when you don't the bloody stuff is everywhere and worthless.
    Roads?.. Where we're going, we don't need roads...

  2. #32
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    The P76 club does not have any new valley covers but they did have a good second hand one.
    E647E2F9-3789-4180-9A9B-64B1312A431B.jpg

    This is looks like a far more reliable than my old one

    Thank you to Brian of the P76 Club of Victoria!
    Phil

  3. #33
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    now you need to make a template from the original one
    Roads?.. Where we're going, we don't need roads...

  4. #34
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    Quote Originally Posted by Mercguy View Post
    now you need to make a template from the original one
    Good idea.
    Providing the engine is well ventilated, not having the stiffening ribs shouldn’t be a problem.
    Surprisingly, many of the P76 members have “blown up” the valley covers. It is a fairly large area covered in very thin sheet, so maybe you don’t need that much pressure.
    I’ll make a template out of ~2 mm aluminium that I can then trace around onto some thin gal sheet in the future if I need another valley cover.

    Phil

  5. #35
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    That's why the pressed longitudinal ribs are in the valley section of that gasket.

    It's actually not the 'best' way to provide stiffness to the pan section, but it does provide some vibration dampening.

    If you do intend to make a gasket pattern, I'd suggest making two diagonal cross patterns as in "X" down the length of the pan section, as that will increase rigidity exponentially as well as reduce any torsional issues.

    Also, fwiw, if you are intending to use a sealing compound, then I would recommend threebond 1215 sealant over any desire to use a spray on or brush on liquid gasket.
    Roads?.. Where we're going, we don't need roads...

  6. #36
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  7. #37
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    If you order part number KV494 (P76 V8 Intake manifold gasket set) from ABD Group in New Zealand (Auckland Bearings) it says that it includes a new metal valley cover gasket.
    They are a part of ACL New Zealand.

    While the part is listed on their website it is possible that it is no longer available or you may be able to special order it. Worth a call.

    Hope that helps.

    Cheers,
    Simon
    Last edited by SMXT; 29th May 2022 at 04:45 PM. Reason: Add information
    '99 Discovery 2 TD5
    '76 Range Rover (Land Rover 50th Anniversary Great Australian Trek vehicle)
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  8. #38
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    Hi Simon, I couldn’t find anything under that part number ?

    Phil

  9. #39
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    Hi Phil,

    Here is a screen shot (see attachment 1) of where you need to navigate to: Auckland Bearings
    Here is the specific entry (see attachment 2).

    As I mentioned, I suggest giving them a call as the part may be special order?

    Cheers,
    Simon
    Attached Images Attached Images
    '99 Discovery 2 TD5
    '76 Range Rover (Land Rover 50th Anniversary Great Australian Trek vehicle)
    'MY13 Range Rover Sport SDV6 Autobiography

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