Volvo RWD 120-130 Forum

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b-20 spark plug recommendation 120-130 1967

posted by  mest on  Thu Dec 9 08:04 CST 2010
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last visit: Thu Dec 9 16:53 CST 2010
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I'm finally going to change the plugs after several well running years. My 122 is my fair weather ride. The engine was built up before I bought it and
has an other than stock cam but I don't know which as it's always run so well I never had the need to get into the engine. Currently running Bosch WR7BP Recommendations... considering my unknowns? Thanks, Mac








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    b-20 spark plug recommendation 120-130 1967

    posted by  mest on  Thu Dec 9 16:24 CST 2010
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    last visit: Thu Dec 9 16:53 CST 2010
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    Would having the petronics ignition make any difference?








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      b-20 spark plug recommendation 120-130 1967

      posted by  Rhys on  Thu Dec 9 17:13 CST 2010
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      last visit: Tue Nov 20 10:22 CST 2012
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      Not to heat range, but I suppose you could run the resistor plugs. I'm not a fan of Pertronix, but it should produce more voltage than the stock breaker points ever could. Resistor NGK's would be BPR6HS.







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    b-20 spark plug recommendation 120-130 1967

    posted by  Rhys on  Thu Dec 9 12:44 CST 2010
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    last visit: Tue Nov 20 10:22 CST 2012
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    If the ignition system is stock, then NGK BP6HS is the plug to use. Resistor plugs are not needed - especially if you have the original "red" wires that use the resistor type connectors.
    Set the gap at .028 inch.






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