richardh10
Well-Known Member
The air filter on my Volvo D2-40F is due for replacement and I would prefer to replace it with a filter which is reusable if possible. Has anyone done this, or know the best way to source one?
Replacement air filter
- Thread starter richardh10
- Start date
coopec
N/A
I just checked the price of Volvo air filters and I can well understand why you want a filter which is re-usable.
If you got the size (Height X Diameter) could you get after market filters at a fraction of the price?
Maybe look at Raycor?
https://ph.parker.com/au/en/marine-replacement-cartridge-air-filters
Air filter cross reference
This thread would be worth reading
Volvo Penta D2-40 Air Filter - Cruisers & Sailing Forums
If you got the size (Height X Diameter) could you get after market filters at a fraction of the price?
Maybe look at Raycor?
https://ph.parker.com/au/en/marine-replacement-cartridge-air-filters
Air filter cross reference
This thread would be worth reading
Volvo Penta D2-40 Air Filter - Cruisers & Sailing Forums
Pete7
Well-Known Member
Richard, we have a universal K&N filer on our Volvo 2003. Is there something in their catalogue that would fit?
universal - Air Filters
Pete
universal - Air Filters
Pete
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Tranona
Well-Known Member
You may consider not bothering. In a typical yacht installation a filter is really not necessary as the atmosphere is pretty clean. It is there mainly as a silencer. I suspect if you open it up (which of course destroys it) you will find it is like new. Just read coopec's link which suggests exactly the same. Pretty sure though that you will find a K&N to fit the spigot - I have one on my 2040.
geem
Well-Known Member
My Perkins M92b has a high performance air filter. It is a fine filter inside a coarse filter. Two separate replaceable parts. After a season the coarse filter is noticeably dirty. Having seen that I am certain there is a benefit in running air filtration on a marine engine. I don't suppose Perkins Sabre put it there by accident.
coopec
N/A
"coarse filter noticeably is dirty" Maybe rubber dust from the fan belt?
Where else are you going to get abrasive dust at sea?
My Perkins 4 108 doesn't have an air filter (like most other 4 108s)
This guy seems to know what he is talking about:
"Jason, the proper maintenance for the intake mushroom and screen filter is to simply soak it in a container with some mineral spirits awhile and then give it a good scrub with a small brush--an old toothbrush will do. Run a pipe cleaner through the tube that the crankcase breather connects to and ensure that it's clean/clear. Then thoroughly dry the thing and give it a wipe with WD40 and your good to go.
The reason the 4-108 has the metal screen is because the engine has a "flame start" system for starting in cold weather. Essentially, when the ignition key is turned to the last detent position just before "start", a small glow plug in the intake is activated and a small valve opened to allow a drip or two of fuel on the glow plug. After 15 - 20 seconds, the plug will be hot enough to ignite the fuel, generating a "little" flame, although, with intake cover/screen filter-flame suppressor removed, it can rise up 4-5 inches above the intake. The mushroom cap and screen, of course, contain this in normal operations. The flame generates the heat needed to ensure starting in very cold conditions. This approach is "old technology", from the 1930's - 40's, but it is simple and effective.
I have been an advocate of the K&N Filter for the 4-108 as friends of ours have had good success with one at reducing intake noise and, through the crankcase vent, lower crankcase pressure and reducing oil seepage around the rear seal. The K&N is made of of a plastic material that is heat resistant up to about 300º F but exposure to an open flame could pose problems. Accordingly, if one is operating in an area where one might need/want the pre-heater/flame start function, the K&N might not be wise. If using one, it would be wise to disconnect the wiring to the glow-plug (but labeled) and put a note in one's engine maintenance log for a potential future owner"
cleaning air filter on perkins 401-8
ghostlymoron
Well-Known Member
There's not much dust around in my engine bay so I agree the air filter is probably not needed.
geem
Well-Known Member
How do you know? Where does the combustion air come from? We have no noticeable dust in our engine room. It's not somewhere I get the feather duster out but the filter certainly finds some. I only change it about every 2 years when it looks dirty. This is what Perkins Sabre decided was appropriate. Foot for scale. The filter is huge
Tranona
Well-Known Member
That may be so, but we are talking about a new Bavaria with just the engine in its own self contained and vented compartment. One of the posts in the thread linked to above reported that after 2000 hours the casing was opened up and in his opinion the element would not need replacing. This is a common experience with these modern small engines in clean dry boats. The engine compartment of my boat after 6 years was as clean, dry and free from dust as it was when new.
geem
Well-Known Member
Maybe we make more dust as we are onboard for at least 9 months of the year. Funny how Perkins Sabre knew we would be so fitted a high performance filter.
How much contamination in an engine is bad? Our engine is specified to use high performance engine oil. It has high performance air filtration and it's up to 500 hrs between oil changes. The rocker box says useful engine life, 10000 hrs.
Anything that goes wrong in an engine room will be sucked into the engine if it has no filtration.
Parts of Europe and the Caribbean fairly regularly get hit with huge Sahara dust clouds. The last one that hit here caused so much loss of visibility that we could hardly see across the bay. The boat was covered in dust. Where do you think this goes if you happen to be using the engine?
Tranona
Well-Known Member
You are just proving my point! This post is about a small diesel running in a clean environment for relatively few hours a year. Of course there are operating environments where air filtration is essential. The same basic type of engine is used in industrial, agricultural and construction equipment and on these versions you will find much more robust air filtration. My mate has a digger with the same base Kubota that my new Beta uses. It has a huge air filter compared with the little one tacked in the back of the Beta. He runs the digger for hours at a time in a dusty atmosphere. By comparison yacht engines live a life of luxury - as I said engines in modern small boats live in their own engine compartments with nothing else to go wrong and produce harmful dust. If you are going to put an engine in a boat that does have these risks as many Perkins engines of the size of yours are, then you equip it accordingly. BTW the 8-10000 hours is commonplace as design life for small diesels these days. The digger is well into the second half of this life and still going strong.
Jamie Dundee
Well-Known Member
Different engine but I put a K&N on mine, cleanable/reusable. Apart from the muck the old filter picked up using the engine without a filter would risk a small child being dragged in to the engine once the turbo starts spinning….
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Rappey
Well-Known Member
I have an air filter box as it makes a huge difference to silencing the engine but no filter.
The pictured k&n type vastly increase induction noise but no problem if you've a well insulated engine compartment.
The pictured k&n type vastly increase induction noise but no problem if you've a well insulated engine compartment.
geem
Well-Known Member
Our generator is the same engine as a Volvo 2010. It had no filter but it has a box that reduced induction noise. I added a filter to the inlet to the box. The generator has always made lots of belt dust. It doesn't go in to the engine anymore. Having seen the dust on our main engine filter after a couple of seasons it made sense to me. It's a great little engine. 27 years old
rotrax
Well-Known Member
It is possible to buy sheets of Air Filter Foam.
I am down to my last one, just having just made a filter for a Kymco Scooter by cutting away the dirty folded paper, drilling the housing and making a grid with bits of old coat hanger wire and placing a double layer of the air filter foam in place. Works fine. Mine was supplied by a motorcycle accessory firm, Hi-Level, and we always stocked plenty when in the motorbike business. I used big K&N's on my Long Track bikes. I would glue up a foam cylinder which slipped over the K&N on a wet track as it was easy to clean and protected the main filter from wet sand.
Perhaps a moto cross bike specialist might help.
I am down to my last one, just having just made a filter for a Kymco Scooter by cutting away the dirty folded paper, drilling the housing and making a grid with bits of old coat hanger wire and placing a double layer of the air filter foam in place. Works fine. Mine was supplied by a motorcycle accessory firm, Hi-Level, and we always stocked plenty when in the motorbike business. I used big K&N's on my Long Track bikes. I would glue up a foam cylinder which slipped over the K&N on a wet track as it was easy to clean and protected the main filter from wet sand.
Perhaps a moto cross bike specialist might help.