How to find tdc
Make a random pointer with a coat hanger under a bolt
screw stop in #1 and turn crank until it hits. Mark balancer at pointer
Turn crank backwards until it hits again. Mark again at pointer
measure distance between marks in mm's (easier than dividing fractions) and bisect it (divide by 2) make a bigger mark there...turn big mark to pointer.
now look at your stock timing tab and see if the TDC is actually on TDC, if its close, it shifted. If it is no where close, you have the wrong year damper.
you could also put damper at 10 BTDC and run the stop in, and then see if the return trip ends up on 10ATDC (you would have to adjust stop to actually be 10 BTDC before trying this)
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