Im loking for the correct plugs to my OC-3
because i dont have the right temperature
on them
(the plugs ben black after a while)
IvÃ,´e have the correct timing and adjusted carburator.
hopefull some one can crossover them to
NGK, Borsch or Champion because we only have those brand in Sweden.
Crawler Boy
The original plug when burning gasoline was the Champion #1 Commercial. I think the coresponds to the current W-14 Champion. Not certain on this, so ask your parts store. I know the thread is 7/8 inch.
I don't care much for current Champion spark plugs, so I would get Autolight, Motorcraft, AC, or something else. Bosch should work well.
Good luck,
Blake
Here is a link to a cross over list and heat ranges:
http://www.antiquetractors.com/Research ... g_List.htm (http://www.antiquetractors.com/Research/Spark_Plug_List.htm)
Crawler Boy, I left this for you at YT, in case you didn't see it here it is again.
The Bosch cross over for the 1 COM is Z120T1. If you want to go one heat range hotter, Z45T1.
The link for the cross over numbers is:
http://www.oldengine.org/members/diesel/equiv.htm (http://www.oldengine.org/members/diesel/equiv.htm)
Scroll down to the 22 mm listing.