mikeshbike
Member
"I timed my engine per the boa
"I timed my engine per the boat to 10 degrees before TDC. Did the base timing on teh 5.7L Merc with Thunderbolt V ignition. It recommended ground a wire to put it in base timing mode. When the jumper was disconnect and put timing light on, notice that the timinig mark is jumping around, did not stay constantly where it was supposed to. Thoughts?"
"I timed my engine per the boat to 10 degrees before TDC. Did the base timing on teh 5.7L Merc with Thunderbolt V ignition. It recommended ground a wire to put it in base timing mode. When the jumper was disconnect and put timing light on, notice that the timinig mark is jumping around, did not stay constantly where it was supposed to. Thoughts?"