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Duane Cady
Hi -Im currently troubleshooting a fuel/engine issue with my Yanmar 2GMF/1985 Hunter 31.Currently, it uses a Perko primary fuel filter - no see-through bowl, and I cant budge the thing - so Im going to replace it with a Racor, as I have heard great things about these filters.Anyone have any suggestions ? Looks like Im gonna get the 215R2 or the 230R2 - spin-on filters with primer pump.Is there any harm in getting the larger capacity (30GPM) filter ?The calculations go like this:Fuel feed pump capacity = .3 liter/min at 1000 RPMFrom that, I assume that it would pull .9 liter/min at 3000 RPM (probably wrong, but...)This calculates out to roughly 14 gallons/hour at 3000 RPM (nominal operating RPM).There are 2 Racors available - the 15 GPM and the 30 GPM models.Is bigger better ? or are there penalties ?Would either of them work ok ?Thanks in advance.Duane