Spark plugs | FerrariChat

Spark plugs

Discussion in '360/430' started by MalibuGuy, Jan 5, 2011.

This site may earn a commission from merchant affiliate links, including eBay, Amazon, Skimlinks, and others.

  1. MalibuGuy

    MalibuGuy F1 Veteran

    Sep 18, 2007
    5,890
    Just did my spark plugs. I did a lot of searching to find the right replacements.

    I ended up buying NGK PMR8B. P=platinum M= hex size R=resistor type 8=temperature and B= double platinum. Early cars had PMR8A where the A= single platinum.

    Anyway the B version is what is currently available. In fact, when I pulled my plugs my car had the B version already. The manual listed an NGK plug which isn't made anymore. The PMR8B have the correct gap.

    With the PMR8B the gap is preset, so as long as the tips havent been dropped and bent you don't have to gap.

    My old plugs had 59K miles on them. The gap was off (larger).

    The engine runs better with the new plugs!

    (Also changed the cam cover gaskets. No more smell of buring oil)
     
  2. Rock-46

    Rock-46 Karting

    Jun 3, 2010
    77
    Slovenia-Europa
    Full Name:
    Rok Pogačnik
    Great job :) isn't cool when you do something by your self on the car :)

    Rock
     
  3. PAP 348

    PAP 348 Ten Time F1 World Champ
    Lifetime Rossa Owner

    Dec 10, 2005
    100,220
    Mount Isa, Australia
    Full Name:
    Pap
    Nice work mate! :):)
     
  4. SfefVan

    SfefVan Guest

    Nov 28, 2008
    1,370
    Switzerland
    Full Name:
    Stef
    59K Miles with the same spark plugs, that's impressive! Good job ;)

    I ordered mine at a very good price and should receive them in a couple of days. But I didn't dare to wait that long before changing them as my car has "only" 27K Miles ;) BTW, the 360, 430 and several Maserati models (quattroporte,spyder and coupe 4.2) use all the same NGK PMR8B plugs.
     
  5. VividRacing

    VividRacing F1 Rookie

    Aug 23, 2005
    2,986
    Gilbert, AZ
    Yeah good plugs if anyone needs them we have them instock. I put these in my car when I changed the clutch earlier this year.

    $13.99 each x8.
     
  6. MalibuGuy

    MalibuGuy F1 Veteran

    Sep 18, 2007
    5,890
    The PMR8B has platinum on both the ground and electrode, so they should last a while. 60K miles is my guess.
     
  7. SfefVan

    SfefVan Guest

    Nov 28, 2008
    1,370
    Switzerland
    Full Name:
    Stef
    60K miles is very good for a spark plug.

    To be a bit more complete about the PMR8B signification, may I add this :

    M for 10mm thread, 16mm tool.
    8 for heat rating, 2 coolest, 12 hottests.
     

Share This Page