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Platinum plugs 850

posted by  Neills740Turbo on  Mon Mar 30 01:04 CST 2009
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last visit: Tue Jun 29 01:10 CST 2010
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Hi

I am new to the 5 cylinder volvo, previous history was all red blocks.
Just wondering whats wrong with using Platinum plugs.

regards








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    Platinum plugs warning 850

    posted by  Jack43 on  Thu Apr 2 11:18 CST 2009
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    last visit: Thu Oct 25 15:39 CST 2012
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    I put in platinum plugs in my 96 850T around 48K miles. Just over 50K miles while going up over a mountain pass, the engine suddenly started to miss like you you had pulled a plug wire. Dealer pulled the head and the two exhaust valves were burned with a chip out of one of them. They had never seen this before but best guess was that the plug insulator broke off. Fortunately, I got Volvo to pay half the cost even though the car was just out of warranty.

    I went back to copper plugs (IPD has some they recommend for the 850) and 100K miles later, no problems.
    --
    96 850T, Bilstein HD, IPD swaybars-HD endlinks








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    Platinum plugs 850

    posted by  Ozark Lee on  Tue Mar 31 16:54 CST 2009
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    last visit: Thu Jan 3 22:08 CST 2013
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    >>Just wondering whats wrong with using Platinum plugs.<<

    They don't work.

    You might be able to get by with the single electrode version (Smashed on the pavement until you can get it to 0.028 plug gap) but the +II or the +IV versions are death on contact.

    ...Lee








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    Platinum plugs 850

    posted by  KlausC on  Mon Mar 30 04:53 CST 2009
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    last visit: Fri Oct 24 10:15 CST 2014
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    The high heat at full boost tends to destroy them after a few thousand miles. Volvo reccomends copper core plugs. I have always used OEM with the best results.
    --
    My name is Klaus and I am a V ♂ lv ♂ holic.







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