Champion vs. NGK, and hotter vs. cooler

[dajohnson53]

My little Merc calls for a Champion L77V. Couldn't find any, and local Merc dealer sold me NGK BUHW2 saying it was a good plug for this engine. Later, looking at a cross reference, I see the L77V actually cross references with the BUHW and the BUHW2 cross references with the Champion L78V. Both the BUHW2 and the L78V are a little hotter than the spec'd plug as I understand it.<br /><br />Do you think the hotter plug will be a problem?<br /><br />Is the Champion L77V an inherantly better plug for this engine than the "equivalent" NGK BUHW? (in other words are they really equivalent).<br /><br />Thanks

 

[achris]

Re: Champion vs. NGK, and hotter vs. cooler

Stay with NGK, float test the Champions. Surface gap plugs don't have a 'heat range'. The difference between BUHW and BUHW-2 is the gap. That engine should be using BUHW.<br /><br />Chris............

 

[dajohnson53]

Re: Champion vs. NGK, and hotter vs. cooler

Thanks. I'll try to find some.