New impeller shaft

[simon Coram]

Got my new shaft today, its fits all ok.
Do i put some silicone grease on it to lube it or not, i noticed another pump i got new has a slight grease covering on the shaft.
Ive got some silicone grease in the garage. Not food grade. But i may have some food grade in my diving bag but think it may have run out.

 

[ian_m]

Unless its specifically says so (or includes grease) put in as is. My jbl ceramic shaft went in straight out packet.

 

[zozo]

Most waterpumps are self lubricating and cooling, some have a ceramic shaft others stainless steel. The shaft in the impelor magnet is mostly teflon.. The biofilm in the pump will lubricate enough.. When this developes after a few days you notice it also getting more quiet.. Lubrication like grease and dirty water only will trap debri and in worst scenario can make it a perfect polishing compount.. Nothing more agressive than water with for example sand particles and grease, it wears down bearings like a treat on no time.