Sump gasket paper cork or rubber which one?

Discussion in 'Engines' started by altern8, Jul 28, 2009.

  1. altern8 Forum Junkie

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    Hey

    About to change the sump on the mk2 whats the better gasket to use ?

    Paper
    Cork
    or
    Rubber ?

    Cheers
     
  2. rubjonny

    rubjonny Administrator Admin

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    if you get a rubber gasket you need longer bolts, I'd just use the cork gasket if staying std. you could get a windage tray from a diesel mk3 if you felt like it, but again need longer bolts
     
  3. penny71 Forum Member

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    With cork and paper gaskets I like to warm up the engine after and then let it go cold again and retorque the bolts.
    Theory being as the engine warms, metal expands and crushes the gasket a bit more.
    Then it contracts when cold leaving the gasket slightly "loose"
     
  4. pigbladder Forum Addict

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    id choose the rubber one
     
  5. vrbanana Forum Junkie

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    The thick card/paper type every time, OE spec on earlier vehicles. Also look at using “weldseal” works a treat on paper etc, never ever leak. Cork splits if over tightened, rubber only with windage tray or with ally inserts to stop the rubber being squashed too far and pushing it out of the side
     
  6. rubjonny

    rubjonny Administrator Admin

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    actually that being said i think i used a paper one on my MK2, basically whatever GSF supply. I just nipped the bolts up and never had a problem.
     
  7. vrbanana Forum Junkie

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    GSF do two qualities of sump gasket, always use the best quality, the other ones cracks
     
  8. altern8 Forum Junkie

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    I just called gsf they said they only do the cork ones these days. Looks the same on the website too :(
     
  9. Matt82

    Matt82 Forum Addict

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    the vw one i got for mine was rubber and only cost a tenner or so. 10nm on those little bolts and thats been fine since
     
  10. rubjonny

    rubjonny Administrator Admin

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    yeah yours is an abf so it has the right length bolts already, if your car has a cork/paper on from zee factory you need longer bolts :)
     
  11. skint_golfer

    skint_golfer Forum Member

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    high tensile m6x20 socket head bolts from screwfix = 2.31 inc vat for 50pack
    toffee m6x17 hex head bolts from vw = approx 70p + vat each and you need 20

    if you go with the rubber/windage option just use the new m6x20's as they fit fine although 2 will need a washer behind them. will be obvious when you fit them which they are.
     
  12. altern8 Forum Junkie

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    Where Can I get some welshseal from?
     
  13. drunkenalan Paid Member Paid Member

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    i have used the windage tray with the standard bolts no problem.
     
  14. vrbanana Forum Junkie

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    try engine reconditioners or e-gay
     
  15. skint_golfer

    skint_golfer Forum Member

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    tip of the day:

    do the 3 bolts at each end of the engine last as they go into ally plates and if you do them first there's a good chance you will pull out the threads.

    not that I just did it of course... [:$] :lol:
     
  16. Dancork# New Member

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    Hi folks, sump gasket was leaking, have got rubber gasket and slightly longer bolts N90592703, question is do you need sealant for rubber gasket, I was thinking not but just making sure
     
  17. Tristan Forum Junkie

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    In theory no, but I always spread a little on both sides.
     
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  18. davidut5 Forum Member

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    I used some sealant only on the space between end seal flanges and block. Even if they are rubber if used again will leak. Happened to me on valve cover and sump.
    I read some do not use any gasket just sealant, i believe this works, i have seen on cars from factory, vauxhall combo c for example.
     
  19. Tristan Forum Junkie

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    That's common on newer stuff, as the surfaces are more rigid and machined more precisely. The sump on a mk2 is far too flexible though.
     
  20. Dancork# New Member

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    Well it's fitted anyways, used a little sealer with gasket as suggested, was straight forward as gearbox out☺️cheers for replies
     
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