Gene Kearns wrote:
On 5 Nov 2005 19:02:46 -0800, wrote:

the only engines I know abnout that MUST NOT be fogged are Mercury
Optimax. It shouldnt hurt any other motor.

Call me crazy but I even fog my ATV and chainsaw !

Matt

Really?

Anybody know the reason why? If they are not fogged.... how can one
protect them during periods of non-use??

the reason is that the optimax uses the cylinders to help pressurizing
its air system. It will leave injecors open during compression. That
way it prsssureizes its air system fast enough to start. Once its
running hte compressor does it.

If you have fogging oil in the cylinders it will get INTO the injectors
and seizes them.

More detail about this and how its done right can be read he

http://www.harbercraft.com/Forum/viewtopic.php?t=4833

Matt

P.S.

a motor with aluminum block, head and cylinders like IMO the ETEC is
wont need to protect the cylinders from corrosion as much as a cast
steel motor.