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Old 06-20-2016, 09:09 PM   #41
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City: New England to Florida
Country: USA EAST
Vessel Name: Tadhana
Vessel Model: Helmsman 38 Pilothouse
Join Date: Jul 2011
Posts: 491
Since the strainers are full when the engine is running I guess your point is that you would keep them full when flushing with a hose? That is fine to try and do it, but the pumps on those engines may pull more water that the hose can supply. If they suck the hose flat you will probably toast the impeller. If you supply water through the open top of the strainer, you won't risk running the hose flat.
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Old 10-05-2016, 03:39 AM   #42
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City: Brisbane
Country: Australia
Vessel Name: Wine Down
Vessel Model: Riviera 35' FB
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I've been fresh water flushing my TAMD41A's for about 18mnths now. Prior to buying WineDown ~3yrs ago, I was a 40year outboard powered rec boater and as such, flushing motors after use was just 'what you do'. I always felt kind of weird and 'not finished' when packing up the 'big boat' before I installed the flushing hardware (quickflushvalve.com).

A few teething problems initially - my SB motor wouldn;t draw from the bucket at idle but the port side would. Both were recently fully rebuilt raw water pumps. I'd have to give the SB motor ~1100rpm to get the water pumping. Absolutely no 'quirks' like this at idle when running normally with raw water. I solved this issue by moving the bucket up from the bilge to the cockpit - thereby using the help of siphon to keep the flow up - works great and now draws at idle.

I let each motor draw fresh for about 10mins (or a cigarette and bit of a chat, or an odd job if no-one else helping) each. I'm convinced it's beneficial - how could it not be? Certainly makes me feel better (after a lifetime of religiously flushing outboards post-use) anyhow.

Hopcar - your 'use flush system as a bilge pump' idea is not new FWIW - the quickflush system i purchased came with filters that I can attach to the hose for exactly that purpose - emergency bilge pump - without introducing unnoticed flotsam from the bilge into the raw water system.

And finally - the one piece of advise I received from everyone I spoke to about fresh water flushing (both the pro-flush and the 'makes no difference' crowds) was to draw from a bucket, NOT the garden hose plugged strait into the system - for safety.
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