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I've been able to successfully change the zinc that's right after the water pump. But so far I've been unable to unfreeze the one that's at the back of the engine up on the cylinder head. I've tried WD-40 and a breaker bar, I've tried rapping it with a hammer to see if that would break it loose, but so far I'm not having any luck getting it to come loose. The fact that it's in a bad location for getting maximum leverage doesn't help either.
So... In the mean time while I struggle with this... How critical is that particular zinc in a Yanmar 2QM15 as long as the other one is new?
And if anyone has any suggestions for a freeing stubborn "square" bolt, I'm all ears.
So... In the mean time while I struggle with this... How critical is that particular zinc in a Yanmar 2QM15 as long as the other one is new?
And if anyone has any suggestions for a freeing stubborn "square" bolt, I'm all ears.