Spark plug thread

Started by Thomas, April 15, 2020, 02:52:36 PM

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Thomas

Today I got the new NGK plug B7ES. Was a bit of work to get rid of the old burned stuff at the lower threads but it's now a big improvement. Idle is significantly more stable than before.
Cheers, Thomas
1946 BSA C11
1937 Sunbeam Model 9
... and a scratched Hyundai
(MSCR member)

phutton

A lot of members do use the longer-nose plug - give it a try!

P.

Thomas

#1
Hi all!

I just discovered that my B7HS spark plug has a much shorter thread than my cylinder head. I wonder if B7ES (E = long thread) is the correct choice. And are these plugs non-resistor plugs?

Cheers, Thomas
1946 BSA C11
1937 Sunbeam Model 9
... and a scratched Hyundai
(MSCR member)