Reply To: Pressure

[Don]

I would definitely leave it original…A little wax and she will look almost like new…
If the lube is only “milky”, you could surely just change it more frequently…But, if raw water is present, you may want to pressure test and reseal. This engine has that pesky driveshaft shock absorber that I’m sure will be adversely affected by raw water… It is always best to pinpoint the actual leakage issues before just ripping the gearcase apart and “resealing”. I almost ignored my own advice the other day on a 58 10hp…Pulled the gearcase off after noticing milky gear lube, and saw the milky mess all over the pesky shift rod bushing/oring seal…Made sense, those orings are often to blame for leakage issues. Decided to pressure test it anyway, only to notice that the actual leak seemed to be coming from the driveshaft seal under the water pump…Pulled it apart, but didn’t see much wrong with the driveshaft seal…Finally had a real close look at the driveshaft, it had pitted right in the area where the driveshaft seal rides…All the new seals and orings wouldn’t have fixed this issue, needs a new driveshaft….Doing the pressure test prior to disassembly, forced me to look closer at the actual leakage issue and spot the damaged driveshaft…Probably would have missed this had I not pressure tested first….But, sure would have noticed it while doing the pressure test after resealing without driveshaft replacement…