Generator shredding impellors

[john_morris_uk]

A quick swim under might reveal sea grass growth over and around the intake.

We had the boat and prop cleaned by divers ten days ago.

 

[sarabande]

When you started the genny, did I see bubbles in the bowl ? That might mean a restriction at the outer end of the intake, and an air leak under suction from one of the connections or O ring. If air, then water failing to to lubricate the vanes ?

 

[john_morris_uk]

Caught another fish?

Who knows? It’s been blown out now.

 

[john_morris_uk]

When you started the genny, did I see bubbles in the bowl ? That might mean a restriction at the outer end of the intake, and an air leak under suction from one of the connections or O ring. If air, then water failing to to lubricate the vanes ?

The water coming up the inlet is clear of bubbles. It froths a bit as it fills the strainer. It’s been running for the last hour and this is what it looks like now:



Generator still running. It’s already got weed in the strainer!

The joys of anchoring in the St Martin lagoon.



It is 30 C with a light breeze though.

 

[geem]

The water coming up the inlet is clear of bubbles. It froths a bit as it fills the strainer. It’s been running for the last hour and this is what it looks like now:

View attachment 175700

Generator still running. It’s already got weed in the strainer!

The joys of anchoring in the St Martin lagoon.

View attachment 175701

It is 30 C with a light breeze though.

Hope you got good antifouling. Worse barnacles ever after anchoring there for a week

 

[rotrax]

Sorry but you’ve lost me? Unless you mean the ‘cam’ the impeller runs over inside the pump?

Exactly. Just held in place with a 5mm screw in his case.

The cam was whizzing around with the impeller.................................

 

[john_morris_uk]

Exactly. Just held in place with a 5mm screw in his case.

The cam was whizzing around with the impeller.................................

Ok understood and cam wizzing round wouldn’t help one little bit.

Not the case with mine. It’s firmly in place I’m pleased to report.

I’m also pleased to report that since clearing the blockage on the inlet the generator has run for a couple of hours without problems. I’m also pleased that the new impeller fitted a few days ago survived as they’re nearly £40 each here.