I posted a while back about a problem with my Mercury
15hp lower unit, that I had stripped the threading on the vent screw and needed to re-tap the hole. To deal with the problem of aluminum
filings that no doubt got into the gear
case, most people advised me to flush it out with solvent.
So, what type of solvent should I use? I was advised against using gasoline or anything else that might damage the seals
and bearings in there. Obviously water
is not an option. What can I use?