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Cylinder liner removal?

Discussion in '308/328' started by wilkrod, Dec 10, 2020.

  1. wilkrod

    wilkrod Karting

    May 9, 2012
    98
    Ocala, Fl
    Hi all,
    So with my 83 QV motor completely disassembled, my question is do I pull the cylinder liners also, or leave them be.
    Also I noticed my liners are magnetic, I thought they were aluminum?
    Thanks
    Jeff
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  3. miketuason

    miketuason F1 World Champ
    Silver Subscribed Owner

    Feb 24, 2006
    14,284
    Cerritos, CA.
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    Mike
    How could liner be aluminum? I don’t think that’s gonna work. Anyway, at least have it mic and see where you’re at
     
  4. 4right

    4right Formula 3
    Rossa Subscribed

    Since you are this far in and given the o rings at the bottom of the liners that seal the coolant from the oil, why wouldn't you especially given the age of these cars.
     
  5. GordonC

    GordonC F1 Rookie
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    Aug 28, 2005
    3,855
    Calgary, AB, Canada
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    Gordon
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  6. johnk...

    johnk... F1 Veteran
    Owner

    Jun 11, 2004
    8,641
    New England/FL
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  8. GordonC

    GordonC F1 Rookie
    Rossa Subscribed Owner

    Aug 28, 2005
    3,855
    Calgary, AB, Canada
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    Gordon
    Well, his QV had aluminum liners when it left the factory back in 83. I suppose it's possible that someone swapped in iron or steel liners since... or maybe the Nikasil coating imparts some magnetic attraction.
     
  9. johnk...

    johnk... F1 Veteran
    Owner

    Jun 11, 2004
    8,641
    New England/FL
    Nikasail is not magnetic, or extremely weakly magnetic. Generally, the test is if a magnet won't stick it's Al sleeves (or an Al block) with Nikasail, if a magnet sticks it's iron sleeves. Another test is that iron sleeve develope a ridge pretty quickly where as Nikasail coated liners won't have a significant ridge or none that can be felt unless the Nikasail is worn through.
     
  10. wilkrod

    wilkrod Karting

    May 9, 2012
    98
    Ocala, Fl
    Thanks guys, I did confirm that the nikasil is what is causing the magnetic attraction. One of the cylinders from my Ducati does the same thing. Pulled the liners today, no problem, they are magnetic on the interior, but not exterior. Glad I pulled them the o-rings were in bad shape.
     
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  11. derekw

    derekw Formula 3

    Sep 7, 2010
    1,318
    London, UK
    Full Name:
    Derek W
    You learn something new every day, I would not have thought them magnetic. If you're buying a gasket set the viton o-rings are included. If not I have them for £10 set of 8.
     
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  13. ferrariowner

    ferrariowner Formula Junior

    Feb 21, 2014
    787
    Mansfield, TX
    Full Name:
    Ron
    With it apart to this point, dissemble and clean everything. Don't forget to replace the seals for the transmission shift rod. Its a breeze now and pain latter.
     

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