Yanmar Airfilters

[jfkal]

Yanmar Airfilters tend to crumble and feed the bits and pieces into the engine not to mention the rust flaking off the steel cone which holds the foam.
Having installed a new engine I do not want to see this to continue. Has any one found an alternative to these appalling original filters?

<hr width=100% size=1>

 

[Guest]

Simple. You don't need one. There is absolutely no need for an air filter at sea. IMHO.

<hr width=100% size=1>

 

[duncan]

a bit of a generalisation surely - I have seen many boats with the kids buckets and spades coated in sand in the same 'air space' as the engine and swarf of all kinds in the bilge area. You might say that these situations shouldn't happen and I would tend to agree but they do, and I for one would recommend having an air filter in place for this reason.

<hr width=100% size=1>

 

[MainlySteam]

Our engine, Volvo, doesn't have one and was never made to have one. I do not think they are necessary for small yacht auxiliary engines.

John

<hr width=100% size=1>

 

[cindersailor]

I have recently aquired a second hand 1gm which is without its airfilter element. Aware of the reduced need for a filter in the marine environment and wanting to economise on the rebuild, I have made up a filter based on a green nylon abrasive pad (dishwashing!) backed by some galvanised wire mesh which I happened to have in the workshop. This should stop anything sizable entering the inlet while not impeding the airflow. I have not tried it yet as the engine has still to be installed, but I guess that so long as bits do not fall off it to be sucked into the cylinder there is not much to go wrong.

<hr width=100% size=1>

 

[Johnjo]

On the Volvo I use to have, it was fitted with wire mesh filters, not true air filters more to stop larger objects being drawn into the engine.

On the engine I have now there is a proper air filter, The difference in the noise level running
with the filter removed is considerably increased. out of choice I would use the filter if only to cut down on the noise. IMHO.

<hr width=100% size=1>

 

[david_bagshaw]

I agree with you on this, our sabre 150 are fitted with a seagull catcher mesh & that is all., Vetus m310 has a plenum chamber box & no filter, likewise the onan generator. save your money once out of warranty period.




<hr width=100% size=1>David
<A target="_blank" HREF=http://www.euroboating.net>http://www.euroboating.net</A>

 

[david_bagshaw]

I agree with you on this, our sabre 150 are fitted with a seagull catcher mesh & that is all., Vetus m310 has a plenum chamber box & no filter, likewise the onan generator. save your money once out of warranty period.




<hr width=100% size=1>David
<A target="_blank" HREF=http://www.euroboating.net>http://www.euroboating.net</A>

 

[paulrossall]

I have a 2GM20 and iar filter material is on it's last legs. However if filter is taken off noise levels increase. Maybe if you post your question here
<A target="_blank" HREF=http://www.yanmarhelp.com/msgboard.mv?>http://www.yanmarhelp.com/msgboard.mv?</A>
you might get some sugestions.
Hope this helps. Paul

<hr width=100% size=1>

 

[sailorman]

if u remove the air filter u will have an increased level of "induction noise" from the inlet manifold as it is proberslly sucking-in say 400cc of air each induction stroke

<hr width=100% size=1>

 

[rrees]

years aro I installed a K&N air filter on my car
unit could be washed out in petrol / etc
Possibly you could use one of these units or a simular one


<hr width=100% size=1>

 

[Evadne]

The main purpose of my Yanmar air filter is to prevent spiders crawling into the cylinder during the winter. The mesh doesn't have to be that fine. I find a Yanmar air filter with the foam removed suffices. Any spiders small enough to get through will not damage the engine. Leave the foam on if there are other sources of debris.

<hr width=100% size=1>

 

[johnt]

Doesnt anyone read their manuals? what you have been arguing about is referred to in the manuals as an INDUCTION or INTAKE SILENCER! and thats what it is , it was never intended to be a filter !

<hr width=100% size=1>

 

[jfkal]

Mea culpa. But the fact remains. Thagt stuff crumbles and sends the rubbish into the engine hence a better alternative has to be sought.

<hr width=100% size=1>

 

[BarryH]

I know this is a totally different tack. It might be worth looking at the flame traps that sit atop carbs on petrol engines. Mine are made of a stainless 'cage' with woven wire inside. They're there primarily as flame arresters and secondly as a form of filter.
They get a wash in carb cleaner every season to clean them up. Its surprising what actually comes out of them. You'll have to make sure that whatever you use flows the amount of air that your engine draws.

<hr width=100% size=1>

 

[timevans2000]

why not fit a K&N air filter inside your existing air box. This will give free flow and keep niose down from induction. I have no problem with my yanmar filter falling apart but I put a new one on every other year

<hr width=100% size=1>