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Old 10 December 2018, 12:16   #1
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Engine Flushing Tank

Hi all,
I have a poor water pressure at home which isn't good enough to get a water flow through my Yamaha 150 four stroke pee hole, if I use engine muffs with the motor running or the engine flushing point connected to the hose. I don't want to risk not fully flushing the motor so I cut the top out of an old IBC tank that I can keep where I'll store my boat (once garden is finished...), requires a bit of a clean but once I clad the outside in some larch I have left over from a log store build it should look OK in the garden. Then just a case of reverse the boat back to the tank, drop the outboard down into it, run the motor to flush, pull forward a couple of ft then drop the outboard again to drain. I'll make a lid for it too to keep leaves and crap out of it, also easy to change the water as required, just have to open the drain valve.
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Old 12 December 2018, 11:58   #2
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A 55 gallon plastic drum cut at 2/3 would normally be able to do the trick for a 25" XL legged outboard.
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Old 17 December 2018, 16:45   #3
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transom reinforcing plate

ive got to do a transom reinforcing plate for my rib and I am looking for the bolt hole spacing for the motor its a honda 150 can any body point me in the right direction
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Old 18 December 2018, 02:01   #4
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I use an old garden water butt with the top 12inches cut off as an outboard flush
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Old 21 December 2018, 02:02   #5
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I've yet to come across such low pressure that an outboard won't flush properly, are you sure you don't have a pump issue. Anyway the company I use for saltaway solution sell flush bags, surely boating stores in the U.K. have such items. https://www.salt-away.com.au
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Old 21 December 2018, 04:12   #6
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My Suzuki will thrown an overheat alarm on muffs, use a cut down 55 gallon plastic drum now.
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Old 21 December 2018, 06:01   #7
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No problem with the water pump/impeller, Yamaha main agent confirmed that the 150 is not great on muffs and often you canít get the stream out the pee hole. I had the tank at home and wasnít been used so made sense to convert it for engine flushing. Plenty of space at home so no need to buy a flushing bag. The tank is nice and deep too.
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Old 22 December 2018, 06:19   #8
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Quote:
Originally Posted by Pipster100 View Post
No problem with the water pump/impeller, Yamaha main agent confirmed that the 150 is not great on muffs and often you canít get the stream out the pee hole. I had the tank at home and wasnít been used so made sense to convert it for engine flushing. Plenty of space at home so no need to buy a flushing bag. The tank is nice and deep too.
That's interesting, I have a friend with twin Yam 150's which pump ok on muffs but not as well as his twin 300 Suzuki's on muffs. Maybe it's a Yam thing, can you post if yours improves using a tank, thanks.
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Old 22 December 2018, 07:40   #9
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Hi Jonp, engine runs perfectly in the tank, strong flow from the pee hole, engine temp normal as if the boat was launched.
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Old 22 December 2018, 18:48   #10
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Honda 225 does the same on muffs and needs a tank to flush , evinrude no probs on muffs
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