I usually just push the damper hub back against the timing gear. Measure the distance from the crank snout to the front of the timing gear, and then measure that far back into the damper bore. Make a mark inside, then measure from the front and push the damper on until you get that distance to the front of the crankshaft. The pulley grooves should line up right without any further attention.
Jerry

"It is better to be silent and be thought a fool than to speak and eliminate all doubt!" - Abraham Lincoln
Cringe and wail in fear, Eloi- - - - -we Morlocks are on the hunt!
There is nothing noble in being superior to your fellow man; true nobility is being superior to your former self. - Ernest Hemingway
Love your enemies and drive 'em nuts!