Re: [Amel Yacht Owners] Re: Onan genset trouble code "seven blinks"
Bill & Judy Rouse <yahoogroups@...>
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I believe that one thing that many of us forget to do is clean the inside of the impeller housing before declaring the job finished with the impeller change. I also believe that the roughness of the inside of that housing which is caused by mineral deposits is the number one reason for short life of impellers.
It is easy clean it on the Onan if you remove the pump when changing the impeller...there is one bolt and another bolt and nut connecting the pump to the block.
I use emery cloth or wet/dry sandpaper to clean the impeller housing. Before inserting the new impeller, feel the inside of the pump housing...is it perfectly smooth? I doubt it...polish it before inserting the impeller. Be sure to remove all of the grit from cleaning it. It should look shiny and feel smooth.
On Sun, Dec 17, 2017 at 7:49 PM, john.biohead@... [amelyachtowners] <amelyachtowners@...> wrote: