Breather to connect hose to dual carb or not?

[Helfen]

[andk5591]

Ok - real quick and dirty - yeah just run your hose to the air cleaner. Have that on a couple of my cars. But be careful that it is not kinked at all. If you keep that filler, one thing I do sometimes is open up the inside of the nipple a little Probably doesnt do much though.

There are a couple different style stock filler. The ones with the tube that run down by the cylinder and the ones that dont have the tube. Probably half of the ones I have seen without, have a small rust hole in them because of water being trapped in it.
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[57BLITZ]

[calvinater]

[quote="Glenn"]I run my breather through an existing hole in the right rear fender with a foam button filter on the end. When the car is moving a low pressure area develops in the fender well and evacuates the breather.

[sonoma_vw]

[Helfen]

Looks like the hose is now going down the center of the air filter and not being filtered, plus only one carb gets it so the mixture is imbalanced.

[Mos6502]

That's how most crankcase ventilation works... when there is a screen or mesh, it's not to filter the crankcase fumes, it's a backfire baffle. The air/fuel mixture won't be imbalanced by the breather tube either (this is after all the same way the Porsche 356 is set up, with the breather connected to the right side carb). If one is paranoid about the oil mist coming out of the breather, they can install a catch can.

[herbie1200]

The crankcase fumes should NOT be filtered, especially if the filtering element is paper or tissue.

The risk is to have condensed oil on the paper that obstructs air intaking.

For me too is a good idea to connect the two carbs to make both intaking crankcase fumes.

My proposa is to put a "T" connector just in the middle distance from carburetors so both have the same fumes (they could condense along the travel).

AND, considering that fumes are at low pressure and temperature, use very light hoses to not weigh on carburetors.

[runamoc]

Since I put this 'back on' oil leaks have pretty much disappeared...
Notice the gasket between the 'custom' oil filler and the alternator base? It's a copper crush gasket for a single port intake manifold. Fits perfect.

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Daily driver: '69 Baja owned 44 yrs - Plan B: '81 Rabbit Diesel LS Deluxe - Plan C: '72 Ghia
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[Helfen]

[quote="Mos6502"]That's how most crankcase ventilation works..


Not in VW's stock air filter. That hose from the breather separator goes to the snout of the air cleaner where the incoming air velocity is fastest to pull or create suction out of the breather oil separator and filtering air through the air cleaner before it goes to the carburetor. Unlike below like most cars do.

Most cars get clean filtered air from the air cleaner that goes to valve covers circulates the crankcase is picked up at the opposite valve cover or to a valley cover which has a PCV valve that goes to the base of the intake manifold not messing up the carburetor.

[sonoma_vw]

[runamoc]

[sonoma_vw]

[runamoc]

[Mos6502]

[Helfen]

Sorry guys the two oil bath air cleaners that I want to post will not copy and paste on the Samba. That goes for anything I want to copy any paste here. Any other site no problem, just here.

[sonoma_vw]

Sweden’s VW Aircooled site is the same way. You have to post the pic to the gallery 1st, then it’s really easy to add the pic to your post. Sorry.