Reply To: WATER PUMP SEAL

[BernieParticipant]

As you mention the brass nut, I presume you are referring to the early type with a gland seal at the outer end of the shaft rather than the later rubber/brass/spring assembly mounted at the impeller end ……..?

The gland should be packed tightly and welllgreased – I would suggest a graphite grease if poss – and the nut tightened down to compress the packing to the point that  there is some resistance so the shaft can still be turned but does not spin freely.

Thereafter, the nut will always need periodic tightening as the packing beds in and wears (the original on-board tool-kit included the spaner for that!).

It sounds to me that your assembly has now bedded in and the packing needs to be compressed a little more to be effective.

B…………….