I think a lot of them just do have silencers. They expect low contamination
and I think that's all I've ever had like through the years. I think my
Yanmar just has a screen over the turbo. Niel's point, about 15 years ago,
I bought a Kubota four-cylinder diesel for the boat, and a Kubota 3
cylinder diesel mower. After a few years, I noticed changing the oil, that
the boat engine oil was always clean as a whistle, and the lawn mower oil
was black like my old trucks used to be.

Bill Coleman
Entrada Erie PA

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.
>
>
>

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