sam95 Posted March 6, 2011 Report Share Posted March 6, 2011 hi today i took out my spark plug to see if it was alrite and wasent fauling but i noticed it was a bp7es (ngk) spark plug and the manual recomends me to use b6es optinal is a b5es or b7es im am just wondering what the P stands for or is it just a change in the part number over time. thanks sam Quote Link to comment Share on other sites More sharing options...
neale Posted March 6, 2011 Report Share Posted March 6, 2011 (edited) Projected centre electrode insulator http://www.spark-plugs.co.uk/pages/technical/ngkjpg.htm Edited March 6, 2011 by Neale Quote Link to comment Share on other sites More sharing options...
sam95 Posted March 6, 2011 Author Report Share Posted March 6, 2011 Projected centre electrode insulator http://www.spark-plugs.co.uk/pages/technical/ngkjpg.htm cheers i did have look at that site i must be going blind Quote Link to comment Share on other sites More sharing options...
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