Helping a buddy with his '89 Bayliner 3288. It has Mercruiser 305 engines with Sen-Dure cooling reservoirs. I see a zinc on the exchanger but my dim recollection is that there should be others elsewhere on the system. The motors are packed in tight and the hatches are over the shaft logs. I haven't tried cramming myself in there to look around yet, but can anyone point me in the right direction as to where else to look?
