air filter?

[wavey]

hey all, hope ur well
could anyone advise me.
i have just started a service and discoverd very small amount of oil in the air filter
should this filter stay dry all the time?
thanx ;D

[De Graaf van Salland]

Hi Wavey,

Normally the airfilter should be dry.
But I've also once discovered some oil in the airfilter house.
At that time I had overfilled the engine oil (oil level a bit above the max.)
I put it down to that and since then never noticed anything abnormal about the bike.

Any other members have any other idea's ?

Franklin

[wavey]

thanks buddy
just looked at the oil level and it does seem a bit high guess it must be why
i will be changing the oil tomorrow
thanks again

[McF]

Jun 23, 2009 20:41:31 GMT 1 wavey said:

should this filter stay dry all the time?

The crankcase does breathe into the air filter so an oily film in the area of the breather is normal.

Overfilling the oil will cause more oil to breathe into the air filter, but is not good for the engine as it could cause overpressure in the crankcase.

It's always worth cleaning out the gauze filter in the air filter housing, and don't forget to drain the pipe as well - under the engine just near the centre stand, several other breather pipes, one of which has a plastic plug. Remove the plug and let anything inside drain out. Someone recently said they never removed the plug because the pipe looked empty - it was full of water with oil at the top of the pipe.

[wavey]

thanks McF for that sound advice.

i have just checked the pipe and sure as eggs it was FULL of water/oil
just have to fill her with fresh oil and fit the new air filter (air filter cost £20.90inc p+p from wemoto)and were ready to roll I hope.

[cyphron]

I noticed that my aNTy does not have the gauze filter in the air filter housing... the small plastic box is empty.

It this really important ?

What kind of material can I use as a substiute of this small filter ?

Thanks.

[McF]

The gauze is reasonably important I'd guess. It helps to stop oil mist spraying around everywhere inside your air filter and therefore keeps the air filter a little cleaner for longer. It is not essential and you bike will run perfectly well without it.

It looks as though it is part number 17252-MN8-000 which you may be able to get for a small number of euros.

or make your own from "Scotchbrite"
This is a coarse plastic scrubbing material (often green in colour) usually supplied in small sheets 150 x 150 mm and approx 5mm thick. Usually for use scrubbing pans in the kitchen.
I cannot think of relative densities of the scotchbrite and original part. If you wanted to ensure it allowed sufficient air flow, but still prevented oil mist from passing through, you could push a knitting needle or similar through the scotchbrite before fitting

[Jaz66]

As McF says cyphron make up a substitute... ;D

Vaguely remember the NTV Guru 'Pops'
had the same ideas and he just used some seat foam i believe

Pretty common that it gets ignored and simply disintegrates, but it was put there in the original specs so it must have some benefit.

Find a suitable bit of foam and cut and fit it, use knitting needles if needed, can only see the foam being useful in stopping minute particles and any airborne moisture being sucked directly into the air box.

[McF]

I had a quick look at David Silver's website and it finally dawned on me that you can search by Honda part number

www.davidsilverspares.co.uk/parts/by-part-number/part_17252MN8000/

£5.11 or 5.57Euros plus postage.
It's a special order though

[Buzzin (^_^)]

You might try one of those small sponges, the ones that come in multicoloured packs with the 'scotchbrite' on the back.
Cut to size and you're done....the entire pack of those is usually cheaper then the real scotchbrite.....well, it is here anyway

Just don't clean it with (paint)thinner ... they don't react well to that (I just had to try)