02-12-2020, 06:42 AM
keep in mine the crank turns 2 times for one cam turn (2:1 ratio , and the engine fires very 90degrees of cam turn. or 180deg of crank.
so #1 and #4 use the same pulley zero mark.
if you remove the head #1 and #4 pistons are at TDC together, so the crank never knows which is firing only the cam and distrib know this. and you timing it right.
so #1 and #4 use the same pulley zero mark.
if you remove the head #1 and #4 pistons are at TDC together, so the crank never knows which is firing only the cam and distrib know this. and you timing it right.
http://www.fixkick.com