breather filter

[Huddleston]

I have the Kewl Metal Air filter installed, but have used a paper filter instead of the K&N filter. I have plugged the drain hole from the air filter, removed the crankcase vent hose, and installed a breather filter where the vent hose connected. Does anyone have any thoughts, criticism, suggestions? The attached picture is what the filter looks like. My thinking is that with the paper filter, I do not want any excess oil touching the filter.

 

[Huddleston]

The way the air intake is designed any oil will be sucked into the cylinders. I have the same set up and use the paper filter and have seen no oil getting to the paper. The problem you are going to see with your vent method for the crankcase is you will find that oil is going to blow thru your filter and deposit itself all over the location where you mount the filter. It makes a mess and collected a lot of dirt.

That was my concern as well about the oil blowing through the breather filter. I guess I will be a guinea pig for a short while and monitor it carefully. I can easily reconnect the vent hose.

 

[jthornton]

I have the Kewl Metal Air filter installed, but have used a paper filter instead of the K&N filter. I have plugged the drain hole from the air filter, removed the crankcase vent hose, and installed a breather filter where the vent hose connected. Does anyone have any thoughts, criticism, suggestions? The attached picture is what the filter looks like. My thinking is that with the paper filter, I do not want any excess oil touching the filter.

Why would you do that? Just wondering...

JT

 

[Huddleston]

Why would you do that? Just wondering...

JT

I'm trying to keep oil out of the air filter, which is now a paper filter. It is like using the oil can solution, but less complicated.

 

[jthornton]

I'm trying to keep oil out of the air filter, which is now a paper filter. It is like using the oil can solution, but less complicated.

Thanks I kinda thought that was the reason. Won't any oil that makes it up that far go straight into the throttle body? I just can't see how it could get on the filter... the vacuum of the running engine will suck it down the throttle body. Lots of folks run paper filters with aftermarket air filter housings. Some even come with a paper filter to cater to those folks that prefer paper filter over oiled filters.

JT

 

[Huddleston]

Thanks I kinda thought that was the reason. Won't any oil that makes it up that far go straight into the throttle body? I just can't see how it could get on the filter... the vacuum of the running engine will suck it down the throttle body. Lots of folks run paper filters with aftermarket air filter housings. Some even come with a paper filter to cater to those folks that prefer paper filter over oiled filters.

JT

You (and others) may be right that the oil will not hit the filter. I originally had the K&N filter installed, but stupidly oiled it too much. I don't know whether that has anything to do with my P1175 (Rich Bank 2) code that I have. I will install BajaRon's plugs and wires as soon as they come in. My Spyder mechanic tells me that it indicates that the Spyder senses a lean condition and is overcompensating causing it to be too rich. I actually question that as it seems to me that both Banks should report the same condition. He says I need a device like the Juice Box since I have removed the airbox and the Cat. But since I kept the stock muffler, I don't think that is true. Something is going on, and I'm just trying to eliminate some possibilities.

 

[jthornton]

You (and others) may be right that the oil will not hit the filter. I originally had the K&N filter installed, but stupidly oiled it too much. I don't know whether that has anything to do with my P1175 (Rich Bank 2) code that I have. I will install BajaRon's plugs and wires as soon as they come in. My Spyder mechanic tells me that it indicates that the Spyder senses a lean condition and is overcompensating causing it to be too rich. I actually question that as it seems to me that both Banks should report the same condition. He says I need a device like the Juice Box since I have removed the airbox and the Cat. But since I kept the stock muffler, I don't think that is true. Something is going on, and I'm just trying to eliminate some possibilities.

I agree if the problem is the air filter then both banks should be affected. Everyone I've talked to say you don't need a juice box for an aftermarket air filter. An extra teaspoon of oil should pass through in a few seconds anyway. Any equipment I have that does not get regular use gets a teaspoon of oil down the spark plug hole followed with turning it over a few times. I've been doing that for 30 years and never have fouled a plug on restarting.

Oiling filters is a mess IMHO.

JT

 

[Chupaca]

Air box..!!

I run with the K&N air filter with the stock box. Whatever oil accumulates there will eventually leak out. So far I have never had that problem. Just did a 10,000 mile service and just wiped the air box clean. Mostly dust and residue oil. If you remove the stock box I can see going to other solutions...:thumbup:

 

[Huddleston]

UPDATE

I decided to remove the breather filter and reconnect the air filter hose to the crankcase vent. We will see if the paper filter survives.