On May 27, 1:45*pm, wrote:
My BIL has been asking me for years to winterize his inboard outboard
boat. I never realized how much he was paying until yesterday. I'm a
shop teacher with a good working knowledge of mechanics and small
engines. From what I've read, it seams that the job is fogging the
cylinders, change the oil/filter, change outboard trans fluid,
antifreeze the coolant, and stabil the gas. Is that it? *Are special
tools or equipment needed?
thanks, Ron

Many service manuals have details on winterizing. And you will find a
lot on the web as well. You've got the basics right but I would add
that often people just drain the cooling system instead of adding
antifreeze. On most engines this usually means just removing the
drain plug(s) on the block and disconnecting a few low hoses. Getting
antifreeze in can be tricky since some i/o cooling designs bypass the
engine until it gets hot. No special tools needed. Is this a
mercrusier? Or one of the others?