I want to say the glow plug is a 10x1.25 I posted it somewhere in the intl section.. I'll see if I can find it.
Dunno about the 2H
DOh.. greg found it :D
the thread: https://forum.ih8mud.com/showthread.php?t=34050&highlight=compression+test
the tool: http://www.handsontools.com/store/show_product/?product_id=1031945
Speaking of which, I would like to test mine at somepoint soon. How do you kill the fuel so she doesn't start?