Kohler 5ECD Zinc issue

[bryan25rs]

Every year when I winterize the boat I replace the zinc in the genset. It is always seized in the hole and I have to remove the heat exchanger and drill the old one so the new one will fit. This is a pain the ass, what am I doing wrong? Should some additional prep work be done that will prevent this from happening? Thanks - Bryan

 

[sporters78]

You just have to replace them more offen

 

[BigBoysToys]

Rather than drill them, have you tried working them out with two small flat screwdrivers? That's how I do it each year. Can't understand why it had to be installed in that position on the exchanger.

 

[Crushin It]

My mechanic told me to leave them out. Said they cause more issues than prevent any.