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2.5L 140 hp omc.<br />at 600rpm timing right on at 4* btdc. at 2500rpm the timing mark advances but the pulley apears to be jerking back and forth. any ideas?
Do you have a 2.5 or a 3.0 A 140 is a 3.0, what year???????????? It makes a difference. I dont think you have a 2.5, omc didnt use them unless its older than I am.
