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Thread: Under seal

  1. #31

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    Scrambling lol? You sure did start out early on bikes. However, hats off to those old scramblers getting their bikes round a track. Loads of power (500 two strokes, ***), wooden brakes, crap suspension. Heroes.
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  2. #32
    Byronic Guest
    Quote Originally Posted by bobj808 View Post
    That's not quite true. X ring and O ring chains have grease 'trapped' in them but still require occasional lubrication. We use non o rings on our KTMs and they require constant lubricating. Obviously a lot depends on the conditions you use your motorcycle.
    Even Z rings now. All the "ringed" chains require lubing. In fact really only specialised
    ring chain lubes should be used, because the syn. rubber rings will rot out, crack whatever if
    engine/gear oils WD40 etc. are used. Once the rubber rings go the roller grease gets out
    and it's money wasted.

    Also for cleaning the ringed chains, nothing stronger than kero, or the specialised cleaners.

    If the above isn't true then I've been wasting my hard earned for at least 8 years because
    I buy new bikes and ringed chains is what comes as standard.
    Truth is I reckon after a few thousand miles the rings wear to the extent that kero or
    cleaner bypasses the rings and washes the lube out anyway!
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  3. #33

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    Quote Originally Posted by bobj808 View Post
    Scrambling lol? You sure did start out early on bikes. However, hats off to those old scramblers getting their bikes round a track. Loads of power (500 two strokes, ***), wooden brakes, crap suspension. Heroes.
    500 two strokes my bum,bsa b40/b50 tiger cubs or JAP singles with total loss oil pumps running on dope,ah the smell of R40.
    Last edited by trevskoda; 12-09-2018 at 16:01.
    Only dirty people wash
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  4. #34

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    The thing about chains is that there are two separate things being lubricated:
    * the roller bearings inside each link (which probably do have sealed-in grease)
    * the interface between the cogs and the chain (which depends on external lubrication).
    People confuse these two all too often. Lubricating one does not lubricate the other.
    Last edited by hairydog; 13-09-2018 at 14:21.
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  5. #35
    Polar Bear's Avatar
    Polar Bear is offline Any news of the iceberg?
    Name: Wilhelm
    Spouse: Karen

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    Quote Originally Posted by argoose View Post
    Think you misunderstood , 26 for 900 ML but only used 150 ML, 1/6 th
    Those pesky commas,,,
    Wilhelm.

  6. #36
    Byronic Guest
    Quote Originally Posted by hairydog View Post
    The thing about chains is that there are two separate things being lubricated:
    * the roller bearings inside each link (which probably do have sealed-in grease) .
    Only the ones with sealing rings. With conventional chains getting lubrication in the
    roller is a hope, even with dipping in pre heated lubricant after a heated kero cleanup bath.
    Hence the development of factory sealed-in prelubed chains, which shouldn't be
    cleaned with any harsh solvent based cleaner or petrol.
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  7. #37

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    I used to get back from a 2-3 hundred mile ride & immediately stick the bike on it's center stand & spray O ring grease on it, the theory was that as the chain was warm the grease had an easier time getting in to it.

    I only used DID chains they're still the best now.

    As for underseal, it's possible to mix Isoflex liquid rubber with about 30% clean full synth engine oil & spray that with a Schutz gun. it takes a few days to cure but is very tough & as it's full synth oil it won't perish any rubber mounts etc it touches.
    Need to mask off your brakes though!

    Phill
    Learning to dance, where one step forward & two steps back is progress!
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  8. #38

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    The trouble with a rubbery coating is that damp can get trapped inside it.
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  9. #39

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    Quote Originally Posted by hairydog View Post
    The trouble with a rubbery coating is that damp can get trapped inside it.
    Thats true as when peeling back some on my old soda to weld rust holes were below.
    No rust on my old f/glass jago jeep kit.
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    Only dirty people wash

  10. #40

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    The damp being trapped behind the under seal was the reason I started looking for a non setting moisture barrier.
    With an oil based non setting sealant, the thinking is, any corrosion will be visible, so treatable.
    Hidden under a solid barrier it can cause a lot more damage.

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