For some reason, I recall this number…… .235 BTDC…. That is the piston set at .235 before TDC
I “THINK” that is where you set the points to fire.. A long past former member had documentation on these Mercs….
Might have been for the 20H setups but I would think they would be the same..
Someone makes a degree wheel and pointer to set the ignition for these…
Find out who makes that tool and you will be fine… better than guessing….
Enjoy that ride….
Richard
http://www.richardsoutboardtools.com
classicomctools@gmail.com
