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Old 29 September 2008, 06:17   #1
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Flushing an outboard that is static ??

Hello gurus and fellow boaters
Is there a SAFE way to flush an outboard with fresh water when it is NOT running ?
The muff units seem to rely on the waterpump running, other sources of water may end up with water in the exhaust ports if you try to hard due to no exhaust pressure ?
Is there a reliable and safe wayt to actually achieve this without damaging the engine ?

Cheers n Beers
Rudds
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Old 29 September 2008, 14:02   #2
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via the flushing port? if your engine has one? probably much better to run the engine in fresh water or on muffs though, my yamaha has a flushing port on the gearbox maybe your engine does. i never used it though, i use muffs because i dont like the neighbours on one side
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Old 29 September 2008, 14:41   #3
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Better IMO to flush with it running-warming it up will help salt dissolve and using muffs means the area behind the intakes gets rinsed too.
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Old 30 September 2008, 05:35   #4
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Quote:
Originally Posted by Nos4r2 View Post
Better IMO to flush with it running-warming it up will help salt dissolve and using muffs means the area behind the intakes gets rinsed too.
Agree.. I always do mine in a tank, since the pump wants a good flush too to get rid of any salt build up, as its a vital part of the engine system, its worth paying attention to, and I dont think remote head flushing will touch the pump and it certainly wont cycle it wouthout the engine turning over, which it needs to, to flush properly. My Honda has a hozelock connector built into it at the head, but I dont even use that, convienient tho it is, as I prefer to get the leg submerged, and the engine warm too
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Old 01 October 2008, 15:28   #5
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Originally Posted by ruddles View Post
Hello gurus and fellow boaters
Is there a SAFE way to flush an outboard with fresh water when it is NOT running ?

Rudds
It's not a safty matter issue, that is, with engine off the thermostat will never open, won't have a well flushed cylinder head, with engine on you'll have. Very small portable engines that doesn't have a thermostat can be flushed with on/off engine as water will freely circulate inside engine.

If you are reffering to your Toh 18 engine, side to the leg add oil screw, there is a flush screw, get yourself a Toh flushing adapter, code 336-6000-0, remove water screw, finger tight adapter, connect a water hose, turn water on, start engine and flush for about 5 minutes, let time for the thermostat to open and wash cylinder head properly. Find this method to clean better than muffs or barrel as having a better pressure/flow through engine.

There are some issues, must duct tape both water intakes and under anticav plate small water intake to close them or water will exit through them lowering water pressure inside engine. As having already a heavy duty muffs set, have just to tape the under anticav intake. If using adapter, place a screw clamp on hose to prevent from getting off the adapter because of water pressure. Don't forget to remove all 3 tapes from leg when finished or will ruin your engine in your next outting with a severe engine overheat.

The flush adapter has a wide intake, but a narrow exit, so no pressure probs inside the engine, will lubricate impeller well, having a controlled water flow through the entire engine, besides it's factory recommended along with muffs or barrel cleaning. Up to you which flushing method suits you best.

Happy Boating
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Old 09 October 2008, 06:49   #6
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Thanks all

Cheers guys,
All absorbed, and many thanks

Rudds
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