Socket size coupler hub 7.4

[duckmnn]

Going to pull my engine this week at remote location going to pull coupler hub off engine to put motor on stand just wanted to make sure irs not a weird size socket 12 point head bolts on coupler can anybody tell me the size of the socket I need to pull coupler off motor . Thanks

 

[Bt Doctur]

Well it could be a 3/8 or 7/16 12 point or just regular 9/16 6 point shoulder bolts

 

[d-reed]

did mine today, 9/16 six point socket