Neil, you're not wrong about the air being relatively clean but everyone should consider just how small 5 microns is while also remembering the last time the sound deadening material disintegrated all over the engine compartment. Its also fascinating the speed at which the bilge gets dirty on a clean boat. If the air truly is clean then ANY filter should last forever. If, on the other hand, there is some mishap then any filter will help mitigate damage to the engine.
Josh Muckley S/V Sea Hawk 1989 C&C 37+ Solomons, MD On Fri, Jul 1, 2022, 20:03 schiller via CnC-List <cnc-list@cnc-list.com> wrote: > So, not to get into the middle of this, but air filters are designed to > remove dust particles from the air. My tractors have oil filled air > filters to accomplish this. A boat, operating on a body of water is not in > a high dust environment. I figured this out with my first Atomic 4, that > did not have an air filter and explained it as not being in a high dust > environment. There are a lot of antique motorcycles that have open > ventures that have existed much longer than our boats. I am not opposed to > air filters, but our environment is not one that screams for anything other > than a silencer. > > Neil Schiller > 1983 C&C 35-3, #028, "Grace" > Whitehall, Michigan > > On 7/1/2022 6:12 PM, Josh via CnC-List wrote: > > https://www.youtube.com/watch?v=H-GI38vE4hQ > > In the first minute of the video you'll see my solution for high flow AND > high efficiency air filter at a reasonable price...well maybe not > reasonable - $48.98!!! > > AEM 21-2201DK DryFlow Air Filter https://a.co/d/i5pGWhj > > Josh Muckley > S/V Sea Hawk > 1989 C&C 37+ > Solomons, MD > > Jun 29, 2022 16:52:12 CHARLES SCHEAFFER via CnC-List > <cnc-list@cnc-list.com> <cnc-list@cnc-list.com>: > > Hey guys, > > A new air filter for my Universal M4-30 cost $17 and which seems expensive > for a simple ring of foam rubber sown like a bracelet. I removed the old > oil caked foam from the little screen and cleaned it up with solvent before > installing the new one and had to flatten the venturi to get a good fit. > The parts guy said it was more of a silencer than a filter. Anybody know > of a better air filter for a diesel engine like mine? > > Chuck Scheaffer Resolute 1989 C&C 34R > > On 06/29/2022 2:10 PM Korbey Hunt via CnC-List <cnc-list@cnc-list.com> > <cnc-list@cnc-list.com> wrote: > > > Good to know. Ill check my 30 hp Yanmar. Last sumner running at WOT for > 1/2 hour the motor shut down. It restarted easily and ran fine. I cleaned > the fuel strainer but found no issues. Ill replace the air filter. > > Get Outlook for Android <https://aka.ms/AAb9ysg> > ------------------------------ > *From:* Dave S via CnC-List <cnc-list@cnc-list.com> > <cnc-list@cnc-list.com> > *Sent:* Wednesday, June 29, 2022 10:06:46 AM > *To:* Stus-List <cnc-list@cnc-list.com> <cnc-list@cnc-list.com> > *Cc:* Dave S <syerd...@gmail.com> <syerd...@gmail.com> > *Subject:* Stus-List Re: Yanmar 2 GMF > > Good to hear. How the heck did the old one get that clogged? Bad > decade for mosquitoes? > > Dave > > > > On Tue, 28 Jun 2022 at 22:19, Robert Abbott via CnC-List < > cnc-list@cnc-list.com> wrote: > > > While I awaited another day for a marine mechanic to get around to > addressing my engine problem, while on the boat today, I thought of > something. I had a new Yanmar air filter on the boat which I got last > year, which I thought what harm could a new air filter do....changed out > the old one and replaced with new one, and guess what, in neutral, the > engine revived up to 3,400 before i stopped....ran the engine in forward > gear at the slip for another 20 minutes.... shut the engine > off...started again...revved up and down....engine works as it should. > > The problem was a lack of air....explains where the smoke was coming > from....incomplete combustion...now, with the new air filter, no smoke. > > Thanks to everyone for thoughts/possibilities of what might be the cause > of my engine issue. > > Going for a sail tomorrow. > > Rob Abbott > AZURA > C&C 32 - #277 > Halifax, N.S. > > >
