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Old 08 June 2007, 09:07   #11
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hi Sparkey, thanks for the advice. I run the direct hose input with fresh water & idle for 1 min or so. The dog ate my muffs!

This was on the advice of my mechanic so a little concerned that the fresh water bypasses the impeller. Is idling 1 min with no water touching the impellor going to cause more harm than good? I only idle as I understood the ob sucked up the fresh water & flushed out the whole ob.

Its a Yam 80 BETL 2006, I am pretty sure I saw water coming out the tell tale when I last flushed, with the engine idling. If so, & I will check properly next time, does that no mean the impellor is getting fresh water.

Thanks to all for advice, brilliant tips here.
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Old 08 June 2007, 15:25   #12
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You need to check. A rubber impeller will self destruct very quickly if it is run dry.

D...
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Old 08 June 2007, 15:39   #13
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Quote:
Originally Posted by Mollers View Post
The RNLI ILB's have gravity fed systems fitted to the launch trolleys. However, the purpose of these is to allow them to hit the water with the engines running not for flushing. The O/B's are fired up in the boathouse and run on muffs until the boat is launched. As for flushing immediatetly after use? Let's not get too worked up. Ideally it's good practise. If it doesn't happen every time don't worry. It might reduce the life of an engine by 0.0001%. Poor maintainence will do a better job. Look around a marina or moorings and ask the question, how many of those outboards are flushed everytime after use? Especially those used commercially.
Agreed .. flushing is not necessary after every dunk, .. your sacrificial anode is there to protect your motor in and out of the water, replace it when required and the motor will be fine.
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Old 08 June 2007, 15:43   #14
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Originally Posted by Mollers View Post
As for flushing immediatetly after use? Let's not get too worked up. Ideally it's good practise. If it doesn't happen every time don't worry. It might reduce the life of an engine by 0.0001%. Poor maintainence will do a better job. Look around a marina or moorings and ask the question, how many of those outboards are flushed everytime after use? Especially those used commercially.

Agreed.

If you can't do it after everytrip then let the engine cool down whilst the boats still in the water. Then quickly start it up and run it for a minute. This will get cold saltwater in to the system that won't crystalize and clog up the waterways.
A tip recomended to me by a commercial boat owner who rarely flushes his engine through. Probably only once a year and never gets problems.
However I don't do it but would if I was leaving the boat in a Marina for a few days.
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Old 18 June 2007, 15:29   #15
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Position of engine after use

Hi everyone

Does anyone know which is the best position for the engine after use? Does it matter if the propeller is tilted off the seawater or not? Is there a difference with leaving it submerged?

Thanks

Nikos
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