[AnthonyG]

Tubman, I don’t know what was in the builders mind but am skeptical also. Remembering before any dis-assy, always adjusting for what I thought were timing issues. Since dis-assy & the long discussion on Offy head issues & seeing the dark condition of tops of pistons & remembering also no matter what plugs I used to use they’d all be dark on removal. Even had Charlie NY set up carbs on his test engine & still had plug issues. So on removing heads & seeing plug reach so short, & long post/thread on Offy heads seemed to make sense. Be that as it may I gotta re-assemble.
I don’t want to pull the crank. Plans were going to b:
Wrap exposed crank bearing surfaces with clean flannel to protect while honing
Hone w brush style lightly to just break potential glaze
Clean bores w terrycloth soaked w kerosene then flush wipe again w brake cleaner.
Final clean w clean terrycloth till clean.
Remove flannel from crank flush wipe w brake cleaner crank surfaces w terry cloth till clean
Check piston to cyl clearance, JSeery said forged s/b greater than cast pistons, how much???
Verify compression ring gaps
Reassemble
Comments?