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Old 20-06-2014, 13:17   #1
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Volvo Penta D2-40 Air Filter

Just wanted to pick the community brain regarding the insane design of the Volvo Penta Air Filter which means you have to discard the entire filter unit rather than just changing the air filter element.

Is it possible to source an aftermarket part that would allow you to open up the filter holder and simply change the internal filter element? It seems total madness to me to have to throw away what is a perfectly useable plastic unit.

Alternatively if I were to fabricate a filter box what internal filter would be recommended to use?

Engine is 3 years old with 350hrs on the clock and runs like a dream with about 1.5litres per hour consumption at cruising revs (~1850rpm) so it is not ultra critical to change the filter but I am still reluctant to have to throw away and replace the entire unit.

Cheers

Keiron
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Old 20-06-2014, 13:39   #2
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Re: Volvo Penta D2-40 Air Filter

Check out K&N air filters. Many many choices.
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Old 20-06-2014, 13:47   #3
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Re: Volvo Penta D2-40 Air Filter

Guy, having had a K&N in one of my old cars I had thought about that option but doubt they would have a filter compatible with a 40hp diesel given they are generally geared toward performance petrol engines (and yes performance diesels these days too).

Might be an option to contact them and explain the situation, who knows might even give them another market to tap into. Like I said it is extremely frustrating to have to spend that much money to replace a paper filter element just because some idiot decided to "weld" the air box shut.

Cheers

Keiron
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Old 20-06-2014, 14:02   #4
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Re: Volvo Penta D2-40 Air Filter

I don't think it matters if they focus on performance in their adds, We used K&N air filter media for a turbine engine 750hp AG plane! I have one on my Perkins also. You might be surprised how many different sizes they have.
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Old 20-06-2014, 14:16   #5
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Re: Volvo Penta D2-40 Air Filter

Guy,

You are probably correct and I may well contact them to "pick their brains". Thing is I don't object to a throw away paper element, hell most cars have this kind of filter and they do a fine job. What I object to is throwing away a valuable lump of plastic that is perfectly fit for purpose and will out last the bloody engine probably.

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Old 20-06-2014, 15:34   #6
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Re: Volvo Penta D2-40 Air Filter

When you remove the plastic filter, how is it connected to the intake? Is there a short piece of ~1.5" hose? If so, just remove the current filter, extend the hose if necessary, and buy an automotive canister element that fits that hose. Keep in mind, though, that often times filters encased in plastic boxes are also using that box as a silencer. I don't know if this is the case here, or how loud it would be without.

Mark
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Old 20-06-2014, 16:11   #7
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Re: Volvo Penta D2-40 Air Filter

Mark,

That's an idea and one I will look into. As w have to meet the stupid EU RCD regulations noise from the induction side is not likely to be an issue as we have a damn noisy 4in blower fan in the engine bay to draw air in/expel air out which makes enough noise on its own.

Hardest part will be sourcing a suitable automotive equivalent then mounting it so it doesn't shake, rattle and roll all over the place.

Cheers

Keiron
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Old 20-06-2014, 17:04   #8
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Re: Volvo Penta D2-40 Air Filter

Quote:
Originally Posted by kas_1611 View Post
Hardest part will be sourcing a suitable automotive equivalent then mounting it so it doesn't shake, rattle and roll all over the place.
Our Volvo MD2030 has a short hose connecting its air filter to the manifold. The Volvo air filter is ridiculous and I simply replaced it with a common, cheap autostore filter that looks like the attached.

If your filter is shaking, rattling and rolling, then you have other problems with that engine. As for normal operation, simply having the filter rest on the engine will be enough to keep it steady. Ours literally hangs unsupported on the hose from the engine.

Mark
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Old 21-06-2014, 01:00   #9
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Re: Volvo Penta D2-40 Air Filter

Mark,

Thanks for the picture, gives me an idea of what might work as an alternative to the Volvo filter.

Worry not there are no problems with the engine, I just meant I would like to secure the filter so it doesn't move about when the boat is heeled over or bashing through waves.

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Keiron
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Old 26-06-2014, 06:05   #10
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Re: Volvo Penta D2-40 Air Filter

Hi,

In the FP forum under Mahe engines?? (think) there are instructions in cutting open the air-filter and replacing the element with a fram re-usable filter available on ebay.

check it out
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