I am deep into analyzing what to do with my
fuel filtration system, but I have a question for those who have a
Westerbeke 40 (Westerbeke's version of a
Perkins 4-108) or a
Perkins 4-108: What micron filter do you put in the
Racor ahead of the on-engine filter?
Some background: the
Westerbeke PN for the entire on-engine
fuel filter assembly is 019509, and the filter element is 014776. The Fleetguard x-ref (FF167) is listed as 12 micron, so I'm guessing that is what the Westerbeke is also (can't find a spec). I have been using a 2 micron in the
Racor, but I'm wondering if 10 mic might be more appropriate. The 2 mic clogged up recently after about 30 hours of run time since last change, but that 30 hours did include one very rough exit of
Beaufort Inlet, so I'm sure that stirred up the dregs. Prior to that, the 2 mic filters had caused no problems, including back and forth in the
Gulf Stream. And yes, I use Biobar.
So is 10 micron enough? I've heard varying opinions, but the local
diesel expert in Wilmington, NC says he thinks 2 micron is too small, and 10 or even larger would be better.
I would appreciate the combined wisdom of the group.