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Larry Carlson

Jan 13, 2012 - 4:05PM

Correct Spark Plugs?

1939 KM@). What are the recommended KLG, NGK and Champion spark plugs?

email (option): lar19492002@yahoo.com

Ian Wright

Jan 13, 2012 - 8:18PM

Re: Correct Spark Plugs?

Hi Larry..The KLG plug for the early M20 was an L777...NGK a B6HS and Champion an L86C...Ian

email (option): ian@wright52.plus.com

Noam Zehavi

Jan 13, 2012 - 8:29PM

Re: Correct Spark Plugs?

Hi Larry,

I believe it should be
Champion L68C, (Originally L10) KLG 777, NGK B6HS

Noam.

email (option): noam10@gmail.com

Noam Zehavi

Jan 13, 2012 - 9:07PM

Re: Correct Spark Plugs?

We must have typed almost together...

Noam.

email (option): noam10@gmail.com

douglas

Jan 13, 2012 - 11:46PM

Re: Correct Spark Plugs?

And don't be tempted to use a half inch reach instead of 3 eighths or the inlet valve will touch and close the gap up.

Ian Wright

Jan 14, 2012 - 12:57PM

Re: Correct Spark Plugs?

Hi Larry..It might not be relevant to you, but if an aluminium head is fitted a long reach plug with a different heat range is then used...Champion N5C...Ian

email (option): ian@wright52.plus.com