Interestingly, I have never seen a real air filter on a sailboat engine. My original Perkins has a screen over the intake that would hold back large bees, but not flies, the Nanni had a neat air silencer that made the engine quiet, but would certainly let large bees in. The current Yanmar has what looks like household screen, certainly no paper or foam. I guess manufacturers must not believe there is much of any concern of contamination out on the water, and through a small engine compartment.
It was interesting seeing the difference in the first and second change of oil with the boat and my Kubota Lawn mower, both the same age, with nearly identical engines, (but the mower with only 3 cylinders). The first and second boat oil looked nearly pristine when changed, and the Mower oil was black like you would see in a truck. Even with a good air filter on the mower, it cannot escape that filthy environment. Bill Coleman Erie PA From: CnC-List [mailto:[email protected]] On Behalf Of Dennis C. via CnC-List Sent: Thursday, October 31, 2019 4:25 PM To: CnClist Cc: Dennis C. Subject: Re: Stus-List Air Filter Media, Yanmar 3JH2E Measure the OD of the intake. K&N sells universal clamp on air cleaners for various diameter intakes. Dennis C. Touche' 35-1 #83 Mandeville, LA On Thu, Oct 31, 2019 at 2:31 PM Bruce Whitmore via CnC-List <[email protected]> wrote: I can't seem to find an aftermarket K&N or other high performance filter (which I would prefer instead of relying on foam).
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