F-Ribs And Sibs - Inflatable Boat Community

Nice morning out in Weston super mare across to steep holme island was nice and calm but engine trouble on the way back going along nicely then engine seemed to jump out of gear but wasn't and just reved so let hand off the throttle then put it back on was fine again but kept doing it engine was pumping water fine and green light was on the engine is a Honda bf20 any else had a problem like this


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Hopefully nothing wrong with motor at all.
Sounds like it could just be prop ventilating and losing grip on water. If motor trimmed out too far, or mounted too high on transom, prop can momentarily break surface and pull air down causing loss of grip, an increase in revs and no drive. Will occur more in high speed tight turns or choppy water.
Usually trimming down a notch should improve things.

Having experienced the same after a cheeky test prop swap I was going to say exactly what Harrison has said.

How many folk were onboard ?
What was the sea state ?
Any weight aboard if not people ?
What prop size do you have fitted ?
What trim hole were you using ?

Martin

The sea was really calm it was fine on way out and I have not changed anything on the boat since I had it and in the end it was doing it at low speed as well took it to the mechanic and he going to test it but has said it cold be a rubber seal round near the prop just glad it made it back as weston got one of the fastest tides otherwise could of be a long row home[emoji23]


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The sacrificial sleeve on the prop can strip especialy if you have hit something. This is on modern engines/props. Does sound to me like slip tho.....as if the rubber has stripped it would do it all the time surely??????

Could seaweed do this there was a lot floating about


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You would need a lot of weed around the prop to affect it so badly I would think, Have you checked the prop to see if it's broken the rubber sleeve,

It's at the mechanics now there going to let me know in the week it had to happen on one of the nicest weekends for tides and sunshine


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wolavington wrote:It's at the mechanics now there going to let me know in the week it had to happen on one of the nicest weekends for tides and sunshine

That's me all over, plan something and something always goes wrong
Fingers crossed it's a quick cheap fix