Originally Posted by DavefromNZ
I did a run today to try to figure out the problem. I found that the oil
level started at 1/3 dipstick and quickly went to over the top of the dipstick and was very frothy (no not a sea water
leak). So I lowered the level and ran for a short time with the dipstick out to try to get the air out. I then ran with the dipstick screwed in and the level remained steady at 1/2 dipstick.
First run had no leaks
so I thought I had solved
the pressure problem. However there was a small leak after returning to the marina. I think a bit better now however I would still like to have the seal replaced again but the yanmar
dealer can't now do it before I leave for a 2000nm trip in a week. I will try another dealer.
Anyone know if the SD50
needs pressure? I.e can I leave the dipstick a bit loose to relieve pressure rather than it leaking at the pinion shaft seal
Lots of info. on previous posts-I have replaced the dipstick with screw in cap coupled to a small length of garden hose so there is no pressure build up as the oil
heats up and expands then contracts on cooling
Nearing 5000 hrs on each leg and all is good.