Dirty fuel pickup in tank is my first guess...

Sent from my Android. Please forgive typos. Thank you.

________________________________
From: CnC-List <[email protected]> on behalf of DON JONSSON via 
CnC-List <[email protected]>
Sent: Friday, June 26, 2020 8:51:00 PM
To: [email protected] <[email protected]>
Cc: DON JONSSON <[email protected]>
Subject: Stus-List Beta Engine Stalling

Hello

We have a beta engine that has a stalling problem.  It started a while ago when 
idling.  After some investigation and replacing fuel filters to no avail we 
found a loose clamp on the fuel line which was letting air in.  Problem fixed.  
Sort off.  It ran well for a while, but then.......  and the new problem may be 
unrelated to this air leak problem.

Now it stalls if it has been running hard for a while and you throttle down 
quickly.  It also stalls occasionally if you are idling and throttle up 
quickly.  For example when you are coasting forward into a slip and then want 
to stop quickly by hitting reverse.  Sometimes it can be difficult to start 
after a stall.  Sometimes not.    If you change the throttle slowly, either 
when accelerating or decelerating, it keeps running.  Filters are clean and no 
obvious air leaks or diesel leaks.

Any ideas?

Thanks
Don Jonsson
Andante, Victoria

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