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DaveVHS
Samba Member
Joined: September 27, 2020
Posts: 34
Location: Brisbane QLD
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 Posted: Mon Oct 05, 2020 3:10 pm Post subject: Air Filter...my first KG |
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Hi all,
My first KG, normally I'm a mustang person so just trying to get my head around this little beast
First of many questions (I've already spent hours here)
The air filter and assembly connected to it.. I'm not familiar with this but from what I see it looks like some sort of unit to pre-warm air before carb? Maybe best for cold climates?
I'm in Australia, its hot pretty much year round. I've seen pics of setups just running a standard air filter on top of carb with none of this.
Can I remove the this assembly and just run a foam/ paper air filter on top of carb
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jeffrey8164 
Samba Member
Joined: January 06, 2018
Posts: 3819
Location: Georgia
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| Posted: Mon Oct 05, 2020 3:58 pm Post subject: Re: Air Filter...my first KG |
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People do it all the time. Most of the pre-heat is done by the intake manifold. That oval canister is primitive emission control for fuel evaporation, so you will remove that too and either plug the hose or remove it. It runs into the front trunk to an expansion tank that looks identical.
If you do remove these things please post them on a classified ad here on the site because I know there are a lot of people looking for original air cleaners expansion tanks and charcoal canisters.
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jason_hamilton
Samba Member
Joined: February 07, 2003
Posts: 1118
Location: Abbotsford, BC
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| Posted: Mon Oct 05, 2020 4:01 pm Post subject: Re: Air Filter...my first KG |
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You *can* replace it, but why would you? It works great and you don't need to maintain a filter. When you do an oil change this takes care of the extra half litre. I'd leave it.
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1969 Karmann Ghia coupe
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Era Vulgaris
Samba Member
Joined: August 22, 2012
Posts: 1678
Location: Raleigh, NC
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| Posted: Mon Oct 05, 2020 5:20 pm Post subject: Re: Air Filter...my first KG |
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| jason_hamilton wrote: |
| You *can* replace it, but why would you? It works great and you don't need to maintain a filter. When you do an oil change this takes care of the extra half litre. I'd leave it. |
^^ I agree
IMO for a stock single carb engine, the oil bath air filter is a better option than any of the aftermarket paper or foam air filters.
1) as mentioned above you just change the oil in it when you change your engine oil. No paper filter to buy. It's a very small amount of oil that goes into it.
2) the crankcase vent deposits oil mist into the oil bath. With a paper filter, the crankcase vent typically gets plumbed right to the mouth of the carb, and then you're re-burning that oil mist, which isn't ideal
3) if you don't need pre-heat, you can disconnect the hose from the underside of the snorkel, and plug the hole in the engine tin.
4) the paper filters look cheap and ugly (my opinion, no offense if anyone here is running one)
5) You're probably not concerned about rain in Australia, but you will probably wash your car from time to time. Being directly under the engine lid vents, those cheap chrome paper air filters give a direct path for water to fall right into the intake if you don't have a rain tray.
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Braukuche
Samba Member
Joined: September 03, 2004
Posts: 11005
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| Posted: Mon Oct 05, 2020 5:25 pm Post subject: Re: Air Filter...my first KG |
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Plus those cheap paper filters have been known to catch on fire if your carb backfires.
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TDCTDI
Samba Advocatus Diaboli
Joined: August 31, 2013
Posts: 12858
Location: North Carolina
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| Posted: Mon Oct 05, 2020 6:46 pm Post subject: Re: Air Filter...my first KG |
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It might be hot but I’m sure that it’s quite dusty too, that’s where the oil bath filter excels. The paper & foam filters are only good for separating out the pebbles.
The oil bath also is cheaper in that you dump out the old oil, clean the the sediment out & replace the oil in the filter with what you drained out of the crank case.
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Disc
Samba Member
Joined: September 24, 2009
Posts: 558
Location: Europe
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| Posted: Mon Oct 05, 2020 11:37 pm Post subject: Re: Air Filter...my first KG |
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What you outlined in red is the "standard air filter"!!! It's not a pre-heat!
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DaveVHS
Samba Member
Joined: September 27, 2020
Posts: 34
Location: Brisbane QLD
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| Posted: Mon Oct 05, 2020 11:41 pm Post subject: Re: Air Filter...my first KG |
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Thanks! some great advice.
Sounds like I need to keep it, I just need to understand it better  |
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TDCTDI
Samba Advocatus Diaboli
Joined: August 31, 2013
Posts: 12858
Location: North Carolina
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| Posted: Tue Oct 06, 2020 6:33 pm Post subject: Re: Air Filter...my first KG |
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You do need to replace the rubber tube between the carb & filter and also hook up or block off that fresh air tube and the hole that it’s supposed to fill.
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Everybody born before 1975 has a story, good, bad, or indifferent, about a VW.
GOFUNDYOURSELF, quit asking everyone to do it for you!
An air cooled VW will make you a hoarder.
Do something, anything, to your project every day, and you will eventually complete it. |
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