i may be wrong, but from what i gather, your plan is to remove the gear as it is keyed and cannot be installed wrong, right? im not sure that you will even get the head off this way. you would be better off to set the timing to the proper mark, mark it again just in case and remove it completely. you should be fine removing them without a sequence. just break them loose and then skip around. be sure that you socket is a tight fit.

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