Steep holme island & engine trouble

A sib is a soft floor inflatable boat that will roll up and fit into a bag to ease with carrying or storage.
There are many different floor designs, exampoles include - Air floor mat, Wooden/Metal boards over an Inflatable Keel or a High Pressure V Floor.
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wolavington
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Steep holme island & engine trouble

Post by wolavington » 26 Aug 2017, 11:12

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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harrison Great Britain
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Re: Steep holme island & engine trouble

Post by harrison » 26 Aug 2017, 15:25

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.
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Martin England
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Re: Steep holme island & engine trouble

Post by Martin » 26 Aug 2017, 17:02

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

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 ?

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wolavington
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Re: Steep holme island & engine trouble

Post by wolavington » 26 Aug 2017, 18:36

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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mattswan2512
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Re: Steep holme island & engine trouble

Post by mattswan2512 » 26 Aug 2017, 21:09

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??????
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wolavington
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Boat Make: Honwave t40
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Re: Steep holme island & engine trouble

Post by wolavington » 27 Aug 2017, 11:29

Could seaweed do this there was a lot floating about


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Paul B Great Britain
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Re: Steep holme island & engine trouble

Post by Paul B » 27 Aug 2017, 11:33

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,

wolavington
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Re: Steep holme island & engine trouble

Post by wolavington » 27 Aug 2017, 12:19

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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Martin England
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Re: Steep holme island & engine trouble

Post by Martin » 27 Aug 2017, 18:57

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 :thud
Fingers crossed it's a quick cheap fix :thumbsup
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