Bill I don't know if you saw my overheating update topic but my new merc 4
stroke 60 had a bad grommet at the base of the power head, Since finding this
my dealer has found 2 more, different size big foots. It may be a design
problem with the big foot 4 strokes.
I seem to remember you had a couple.
It may just be a salt water problem tho. It is caused by corrosion at the
powerhead to water tube joint.