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Outboard flushing bag

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Phil
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Outboard flushing bag

Post by Phil » 18 Apr 2018, 15:27

Has anyone used an outboard flushing bag before? Something like one of these:

https://outboardcovers.com/uk/other-pro ... lush-bags/

https://seamarknunn.com/acatalog/Flushi ... ml#SID=718

I’m wondering if one would be a good option to flush my 2-stroke Johnson GT10 outboard when I land my F-RIB, as opposed to having to unpack it again and put it in the wheely bin when I get home. Or taking a plastic bin in the car with me, which would take up more boot space.

I’d be putting the bag on when the boat is out of the water and the OB is still attached to the transom. The F-RIB wheels dont lift the boat high enough for the OB to be fully lowered. It would be on the trim setting, with the skeg on the floor taking the OB’s weight (from inside the bag).

What I can’t work out is if the bag would fill up properly with enough water to cover the relevant OB parts if the engine is on an angle. Obviously I couldn’t put the OB in gear in a bag, but I’m also wondering whether the slow turning of the prop when the OB is in neutral might be an issue as I think the prop might be pressed up against the inside of the bag with the engine on an angle.

Any thoughts would be appreciated.

Cheers,

Phil
F-RIB 360 with F-RIB wheels, seat cushions and bag and Scotty rod rests
15hp 1992 Johnson GT 10 2-stroke

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Martin England
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Re: Outboard flushing bag

Post by Martin » 18 Apr 2018, 16:54

I can imagine that’ll turn into a very oily mess very quickly. :LMT
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Steve
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Re: Outboard flushing bag

Post by Steve » 18 Apr 2018, 17:18

Never used one Phil, but seen one in action. Used by Clyde Outboard Services to demo a Suzuki 20 at Scotland's Boat Show last year. It seemed to work, although had a wee hole in the side and was peeing water out... Not sure what that says, but maybe 'someone' engaged a gear or something and nicked the bag...

Looking at the website, it looks like it should be hung from a vertical OB... Could you raise the transom somehow? Couple of bricks under the wheels perhaps?
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Phil (18 Apr 2018, 17:37)

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Phil
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Re: Outboard flushing bag

Post by Phil » 18 Apr 2018, 17:36

Martin wrote:I can imagine that’ll turn into a very oily mess very quickly. :LMT
Lol. My wheelie bin has a permanent sheen and whiff of 2-stroke!

It makes me think that the oil circulating through the flushing water would help preserve the OB’s cooling system, although that’s not based on any solid mechanical know how.


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F-RIB 360 with F-RIB wheels, seat cushions and bag and Scotty rod rests
15hp 1992 Johnson GT 10 2-stroke

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Re: Outboard flushing bag

Post by pritch » 18 Apr 2018, 17:38

This could be worth a try?
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Phil (18 Apr 2018, 17:52) • Shaun (20 Apr 2018, 14:22)

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Phil
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Re: Outboard flushing bag

Post by Phil » 18 Apr 2018, 17:44

Steve wrote:Looking at the website, it looks like it should be hung from a vertical OB... Could you raise the transom somehow? Couple of bricks under the wheels perhaps?
Agree on the first bag. To my eyes, it looks like the OB pictured at the second link (Osculati bag) is tilted, though.

I was hoping I could make it work without raising the boat higher. Both in terms of avoiding another heavy lift to get the boat and OB up on bricks and not adding another thing to remember to pack [emoji38].

Good to hear the things work in principle from what you saw at the boat show.


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F-RIB 360 with F-RIB wheels, seat cushions and bag and Scotty rod rests
15hp 1992 Johnson GT 10 2-stroke

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Phil
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Re: Outboard flushing bag

Post by Phil » 18 Apr 2018, 17:51

pritch wrote:This could be worth a try?
That’s very interesting Pritch. I didn’t think there’d be enough pressure to use flushing muffs without connecting a hose to the mains water supply.

If I’m seeing correctly, that video implies a little gravity will do it?!


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Cliff
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Re: Outboard flushing bag

Post by Cliff » 18 Apr 2018, 18:20

Same idea, might be a better option.
https://www.ebay.co.uk/itm/collapsible- ... SwTuJYouNu
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Phil (18 Apr 2018, 19:30)

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Phil
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Re: Outboard flushing bag

Post by Phil » 18 Apr 2018, 19:32

Cliff wrote:Same idea, might be a better option.
https://www.ebay.co.uk/itm/collapsible- ... SwTuJYouNu
It’s certainly a better price [emoji3]. Looks like it has some sort of structural rigidity too. Thanks Cliff!


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15hp 1992 Johnson GT 10 2-stroke

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Paul
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Re: Outboard flushing bag

Post by Paul » 18 Apr 2018, 20:50

Phil wrote:That’s very interesting Pritch. I didn’t think there’d be enough pressure to use flushing muffs without connecting a hose to the mains water supply.

If I’m seeing correctly, that video implies a little gravity will do it?!
Phil
As long as the hose feeding the 'muffs' from the water reservoir is of an adequate size to give sufficient volume then yes it'll work, water pressure isn't required at any stage.
Remember, once the engine fires then the impeller will draw the water through just like it does when it's in the sea, lake, river, water-butt etc :thumbsup
:cheers
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