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40 Deluxe · 11-09-2019, 01:10 AM

How about this scenario: reach of plug without gasket (total shank length)=13/16". Reach of plug with gasket installed=3/4" (assuming gasket is 1/16" thick). Anyway, the end result is what's important, and it looks like Tubman has it figured out!

11-09-2019, 01:10 AM	#88
40 Deluxe Senior Member Join Date: May 2010 Location: now Kuna, Idaho Posts: 3,779	Re: Spark Plug Protrusion into Head? How about this scenario: reach of plug without gasket (total shank length)=13/16". Reach of plug with gasket installed=3/4" (assuming gasket is 1/16" thick). Anyway, the end result is what's important, and it looks like Tubman has it figured out!