I have just replaced the old packing gland
with a Radice RMTA dripless shaft seal
(a reengineering of the Volvo
The seal has a hose connector that should be used, as the datasheet says, for lubrication water
The stern tube and the seal are well under the flotation level and the flow of water
, removing the seal, is plentiful.
After reading several advices on this and other forums
I connected a hose without connecting it to a pressurized water source, but taking it well over the floating level and leaving it open as a vent because the low speed of a sailboat, I read, should not create issues in water flow.
After going out for a test of 30-40 minutes at cruise
revs (2200 RPM
, the engine
is a Bukh
DV20) I returned in port and, after mooring
, I checked the seal touching the seal itself and the shaft.
The seal is almost cold (the atmosphere temp was about 18°C)- just warm, the shaft a little more warm, not hot (can be touched without pain).
Is it normal or have I to worry about?
Thanks for your replies