Flat Tappet Camshaft? – TigersEast AlpinesEast

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This topic has 2 replies, 3 voices, and was last updated 13 years, 10 months ago by theo.

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- September 4, 2007 at 4:26 pm #57013
  
  Gilles Blais
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  Local British car newsletters are warning their membership about the recent reduction of zinc dialykl dithiophosphate (ZDDP) in API approved oils. This is causing early failure in new camshafts; moly-disulfide assembly lube is not enough. Older, broken-in units do not have a problem from what I read.
  
  The problem is defined for "flat tappet camshafts". Does anyone know if this applies to standard 260 lifters which have "convex spherical shape" contacting the cam?
  
  Cheers, Gilles
- January 22, 2009 at 5:34 pm #62753
  
  Peter & Penny Stanisavljevich
  Member
  
  Yes, it does.
- January 23, 2009 at 7:51 pm #62757
  
  theo
  Member
  
  There are oils that have maintained the old additive content (I think Shell Rotella T is in this camp) or else you might be able to get it as an oil treatment additive.
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