Greasing an air filter - still a valid practice?

I still do, I figure it can't hurt.

Rex McKinney

"JayC" wrote in message

> Today must be filter day.
>
> I've always wondered about the practice of greasing the edge of an air
> filter. I've never done it, since my bikes all have filter cages that
> squish the foam under them. I make sure to keep that area well oiled
> - the odds of dirt infiltration in that area are far less than
> anywhere else on the filter. ASMOF, it seems to me that an oiled then
> squished edge would seal better than a greased edge.
>
> I remember seeing an old filter that had a vinyl rim around the bottom
> where it seated - I wonder if the whole greasing the edge thing is a
> holdover from the days where air filters weren't made to seal on
> foam? Maybe from even back in the paper days?
>
> I just don't see any utility for putting grease on a filter edge.
> Does anybody still do that? Comments?
>
> Keeping with the daily trend - JayC
>
 >> Stay informed about: Greasing an air filter - still a valid practice? 

On Nov 7, 9:24 am, JayC wrote:
> Today must be filter day.
>
> I've always wondered about the practice of greasing the edge of an air
> filter. I've never done it, since my bikes all have filter cages that
> squish the foam under them. I make sure to keep that area well oiled
> - the odds of dirt infiltration in that area are far less than
> anywhere else on the filter. ASMOF, it seems to me that an oiled then
> squished edge would seal better than a greased edge.
>
> I remember seeing an old filter that had a vinyl rim around the bottom
> where it seated - I wonder if the whole greasing the edge thing is a
> holdover from the days where air filters weren't made to seal on
> foam? Maybe from even back in the paper days?
>
> I just don't see any utility for putting grease on a filter edge.
> Does anybody still do that? Comments?
>
> Keeping with the daily trend - JayC

I do as Baxter mentions. I use Belrays blue stuff.

-Dave-
 >> Stay informed about: Greasing an air filter - still a valid practice? 

use ear wax
sustainable resource hypoallergenic
john
belray
"JayC" wrote in message
> Today must be filter day.
>
> I've always wondered about the practice of greasing the edge of an air
> filter. I've never done it, since my bikes all have filter cages that
> squish the foam under them. I make sure to keep that area well oiled
> - the odds of dirt infiltration in that area are far less than
> anywhere else on the filter. ASMOF, it seems to me that an oiled then
> squished edge would seal better than a greased edge.
>
> I remember seeing an old filter that had a vinyl rim around the bottom
> where it seated - I wonder if the whole greasing the edge thing is a
> holdover from the days where air filters weren't made to seal on
> foam? Maybe from even back in the paper days?
>
> I just don't see any utility for putting grease on a filter edge.
> Does anybody still do that? Comments?
>
> Keeping with the daily trend - JayC
>
>



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 >> Stay informed about: Greasing an air filter - still a valid practice? 

> Although it's probably not needed if you get the rim saturated
> properly, I do anyway. It's cheap insurance as far as I'm
> concerned.

ditto
 >> Stay informed about: Greasing an air filter - still a valid practice? 

On Nov 7, 9:24 am, JayC wrote:
> Today must be filter day.
> Does anybody still do that? Comments?

Funny, been wondering the same thing. Why? Now that I finally got away
from that awful mess that is the Belray blue stuff I no longer use
gasoline to clean my filters. And I'm still to find a decently priced
grease that can be washed with soapy water. So, on the advice of a
friend I started doing as you are: saturating the rim with the same
oil the rest of the filter takes and gently pressing it against the
wall it sits against. I mean, it does have a bolt that holds it in
place (RM250). And I noticed that it keeps it nicely sealed even under
very dusty days/races. I have been carefully examining my filter's
inside and not a trace of dust or dirt, so I suppose the technique is
working. My PJ1 spray can of red oil seems rather watery and doesn't
provide as good a seal but so far it is holding up nicely. Beats
dealing with grease, as the whole idea to get away from using Belray
was to minimize the mess in the first place.
 >> Stay informed about: Greasing an air filter - still a valid practice? 

On Wed, 07 Nov 2007 16:24:13 -0000, JayC
wrote:

>Today must be filter day.
>
>I've always wondered about the practice of greasing the edge of an air
>filter. I've never done it, since my bikes all have filter cages that
>squish the foam under them. I make sure to keep that area well oiled
>- the odds of dirt infiltration in that area are far less than
>anywhere else on the filter. ASMOF, it seems to me that an oiled then
>squished edge would seal better than a greased edge.
>
>I remember seeing an old filter that had a vinyl rim around the bottom
>where it seated - I wonder if the whole greasing the edge thing is a
>holdover from the days where air filters weren't made to seal on
>foam? Maybe from even back in the paper days?
>
>I just don't see any utility for putting grease on a filter edge.
>Does anybody still do that? Comments?

Although it's probably not needed if you get the rim saturated
properly, I do anyway. It's cheap insurance as far as I'm
concerned.


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 >> Stay informed about: Greasing an air filter - still a valid practice?