Spark Plugs

[locallawoff]

JCGidday,Can anyone tell me the difference between a QL77JC4 and a L77JC4 spark plug.Thanks

 

[tashasdaddy]

Re: Spark Plugs

the Q indicates Quiet, it is a resistor plug, used to reduce static and interference in electronics. radio, fish finders, gps etc.

 

[seahorse5]

Re: Spark Plugs

JCGidday,Can anyone tell me the difference between a QL77JC4 and a L77JC4 spark plug.Thanks

The "Q" plugs contain a suppresor, not to be confused with a resisitor, that is needed for some CD ignition designs.

Here are some links that might explain what you are asking:

http://www.championsparkplugs.com/glossary.asp?kw=Resistor&manID=2&pt=1

http://www.championsparkplugs.com/glossary.asp?kw=CDI&manID=2&pt=1

http://members.iinet.net.au/~pauldawson/technology/iame26-spark-plugs.PDF

 

[locallawoff]

Re: Spark Plugs

Gidday,Sorry for the delay in replying but my box of bits did not compute for a while.Any way thanks for your replies.
Martin