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Old 08 March 2015, 06:19   #1
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Engine flushing question

I have a 25 hp suzuki v twin four stroke. Is it ok to flush through the flushing port without engine running every time or is it better to use muffs with engine running. Any opinions appreciated, thanks
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Old 08 March 2015, 06:22   #2
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Better on muffs-you don't flush the water pump using the flushing port.
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Old 08 March 2015, 09:25   #3
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Always on the muffs if you can

Please see below a picture of what they can look like with the free sea salt and messy, I fitted a new impeller last year and did run on the muffs at the end of the season, all stripped now, decided to check it yesterday before this weeks Menai cruise, clean now, next post will be the strong tell tale, all clean and fresh with piece of mind.
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Old 08 March 2015, 09:29   #4
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Telltale

It must have disturbed some salt after the run on muffs at home at end of season, can't explain why, decided to strip it down before I restarted for this season, so glad as the impeller was new last year and now I have cleaned it out it is now like new again.

Had to gently remove the hard salt deposits from the housing, the housing and impeller now like new and here's the results.

Took about an hour to do
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Old 09 March 2015, 18:30   #5
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A proper flush!

I find a good run in Loch Lomond at the end of the season is ideal for flushing engine, trailer and boat. I think that's why the NPA provided such good launching facilities for this very reason. But seriously if you are only using the flushing port, don't run the engine or you'll wreck the pump.
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