My old Racor 220 was a 2 um filter, as well. Used it for 3 years without problem (other than fuel leaking from the plunger); though, I changed it annually. This might also be a question how much you are motoring (“annually” may mean 50 h (in my case) or 500 h is someone else’s).
But no question, the standard procedure is a 30 um filter/water separator first and a 2 um final filter on the engine. Marek From: svpegasus38 via CnC-List Sent: Monday, June 26, 2017 15:18 To: cnc-list@cnc-list.com Cc: svpegasus38 Subject: Re: Stus-List Air in fuel line #2 I had a 2 micron filter 4 feet before the engine filter housing (had to pull heat exchanger to change it). Before the 2 micron canister filter was a 30 micron racors 500 filter. Never had a problem with the engine fuel supply in 10 years. I always used Soltron when I got fuel. Only time I had a problem was coming across the Straits of Juan de Fuca. Engine died in flat calm water, changed both filters restarted engine and was off again. I had forgot to change the filter for about 5 years. Oops. Sent from my T-Mobile 4G LTE Device Doug Mountjoy POYC Pegasus Lf38 Significant Other LF39
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