Help with Zinc Anodes on Evinrude 150 FICHT

[pquinter]

Hey all,
The bolt securing the zinc anode (block anode in gearcase) broke. It has been a pain to remove it, my question is: Can I add an extra anode elsewhere to substitute for the one missing?
I remember some U-shaped anodes, can I add one of those?
I have the boat in the water, removing that broken bolt will take me a while I I will have to take the boat out, which I am not planning to do now.
Thank you,
Pedro

 

[gradytom]

I would cut the old one off completely using a dremel tool and replace.

 

[pquinter]

The bolt broke flush with the threaded hole, can only be extracted but seems very difficult. Can I replace the trim tab with an anode just as Yamahas?
Cheers
Pedro