block zinc bolt is stuck and a square bolt head
is almost round now. The final option is to remove the head
of the cooling
portion of my yanmar
and remove the zinc but that would be a more complicated operation that would require finding the right replacement packing/gaskets from Yanmar
I have zincs on my prop shaft. They are technically electrically connected to the cooling
system thru the engine and the shaft and share the same seawater which runs thru my direct cooling system. How much protection does the prop shaft offer the engine? If I connect a copper wire from the zinc bolt closer to the shaft, would this protection increase? Trying to think of an alternative to removing the stuck bolt...