At the end of last season the last use of the rib was in Poole Harbour staying on a camp site up the frome River. On our last trip we had to come back at low water which is at lease 2 miles I would estimate. I am sure I sucked in mud to the cooling system of the outboard as we started having problems.
At the end of last year we had the thermostat fail and I also replaced the impeller as I was having pumping issues. I also flushed the whole outboard with Rydlyme which seemed to work well. At the end of last year the motor was pumping water very well. Fast forward to the start of the 2023 season and she would only just dribble a few drips from the tell tale. Knowing that the impeller was good I suspected that residual gunk left in the engine would have settled at the low point which is where the impeller pipe is connected.
I followed some advice from a thread way back on here to blow some compressed air up its pee hole pipe. This seemed to work a dream.
As I said in the title a weak tell tale flow is not always your impeller. Video below
Hopefully this might help someone else and even save them a few quid
