News

Simple question I need the answer to.

Discussion in '348/355' started by johnk..., Apr 12, 2020.

  1. johnk...

    johnk... F1 Veteran
    Owner

    Jun 11, 2004
    8,492
    New England/FL
    Surprised I don't know this. I do know the 355 liners are coated with Nikasil. But what is the base metal?
     
  2. To remove this ad click here.

  3. johnk...

    johnk... F1 Veteran
    Owner

    Jun 11, 2004
    8,492
    New England/FL
    never mind, got it.
     
  4. flash32

    flash32 Formula 3

    Aug 22, 2008
    2,211
    Central NJ
    Full Name:
    Dominick
    Please tell for future searches ..tia

    Sent from my moto g(7) using Tapatalk
     
  5. johnk...

    johnk... F1 Veteran
    Owner

    Jun 11, 2004
    8,492
    New England/FL
    My source has to check to be sure. I'll let you know.
     
  6. johnk...

    johnk... F1 Veteran
    Owner

    Jun 11, 2004
    8,492
    New England/FL
    He confirmed they are steel. I was questioning it because my 308 QV manual say the QV liners are Niasil coated aluminum. So now I'm wondering if the QV liners are actually AL or it that is an error int he manual.
     
  7. To remove this ad click here.

  8. johnk...

    johnk... F1 Veteran
    Owner

    Jun 11, 2004
    8,492
    New England/FL
    From the 308/328 QV workshop manual.

    Image Unavailable, Please Login

    Confusing isn't it. Early 308, steel. QVs, aluminum? 355, steel. But if the QVs are aluminum I guess nitrite antifreeze is out. I would think that with an aluminum block nitrite antifreese (G-05) shouldn't be used in a 355 either, regardless of the wet liners.
     
  9. bjwhite

    bjwhite F1 Rookie

    Mar 17, 2006
    3,988
    Seattle, WA
    Full Name:
    Brian White
    And what about the 348? Curious.

    I'd always heard nightmares of BMW and Nikasil and they replaced whole engines for Alusil.

    What the BMW process defective or has Nikasil been a problem in other engines too?
     
  10. m.stojanovic

    m.stojanovic Formula 3
    Silver Subscribed

    Dec 22, 2011
    2,105
    Malaysia - KL
    Full Name:
    Miroljub Stojanovic
    No defective process on BMW-s, Jaguar V8 Nikasil engines (97-99) also suffered badly. Many Jag engines were replaced under warranty and in the year 2000 Jaguar went back to steel liners. The problem was caused by high sulphur content in petrol in the 90-s (sulphur "ate" Nikasil). Any Nikasil engine that has survived the sulphur period is now fine as the sulphur content is minimal in today's petrol (reduced since early 2000-s actually).
     
  11. To remove this ad click here.

Share This Page