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Thread: TD5 coolant bleed screw leaking

  1. 1st March 2015, 03:28 PM #1
    phin
    phin is offline Master
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    TD5 coolant bleed screw leaking

    Hi all,
    I was just changing my coolant on my new (to me) TD5 for the first time and it's developed a leak in the top radiator hose coolant bleed screw. The bleed screw itself has been replaced with a bolt and perhaps I overtightened it doing it up.

    The complicating factor is I'm up at the farm and this is my only transport. If it needs a new top hose I'll order one, but is there a quick fix I can use to get going again and safely back to Melbourne tomorrow? I was thinking a flat washer across the face of the hose and some RTV sealant?

    many thanks
    Phin
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  2. 1st March 2015, 05:38 PM #2
    PhilipA
    PhilipA is offline Swaggie Subscriber
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    The problem usually is that the thread separates from the hose inside the hose causing the leak.
    So the silastic idea is probably the best , If you can get the bolt to undo.
    Regards Philip A
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  3. 2nd March 2015, 10:25 AM #3
    jimr1
    jimr1 is offline Wizard
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    One of the problems is that bleed screw is cone shaped , so the face of the screw , and the shape of the hose form the seal . A bolt can't do that , so put a washer and some sealant on It . You could try a bit of teflon at the top end of the bolt . Don't over tighten It !!.. Jim
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  4. 2nd March 2015, 10:43 AM #4
    Tombie Guest
    Self vulcanising tape.... wrap it!
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  5. 2nd March 2015, 11:55 AM #5
    phin
    phin is offline Master
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    Thanks all, smeared the bolt with a decent amount of RTV sealant and looks to be holding up well so far. Should I replace the hose or if it stays leak free leave it?

    cheers
    Phin
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  6. 2nd March 2015, 11:58 AM #6
    Tombie Guest
    Replace - that silicone won't last.
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  7. 2nd March 2015, 12:25 PM #7
    phin
    phin is offline Master
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    Thanks Tombie, will order one.

    cheers
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