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Re: [T3] Crankcase breather removal? and thermostat parts


On 19 Jun 2001, at 23:58, Mike Wodkowski wrote:

> on 6/16/01 5:30 PM, Russ Wolfe at russella@prairieinet.net wrote:
> 
> > What it does, is let any blow-by out of the crankcase.

> I'll have to look at my engine (just got the car back today!!) but, I have
> this hole front of cylinder 3 and rear of #1 that spews oil mess if I dont
> keep it plugged. 

Those are extra breathers added for 72-3 only. I think things will 
work pretty normally with them blocked off for now.
 
> >The early VW's vented this out under the car, through the breather. The
> >later VW's, (emission control laws), just returned this to the air cleaner,
> >where it is burned by the engine.
> 
> Is this hole I mentioned above supposed to be attached to the air cleaner?
> If is so, then why do I also have an oil breather? Or something that looks
> an awful lot like it.

They are meant to connect to 2 inlets on the right side of the air 
cleaner. The 72-3 type 3s got a more complicated breather system 
that is intended to suck filtered air in thru the heads and then out 
the breather via a special duct to the intake air distributor. This is 
supposed to carry off fuel vapors which then get sucked into the 
intake air. It's kind of a PCV (positive crankcase ventilation) 
system. It's actually quite good, except when the hoses get 
messed up.

-
Jim Adney
jadney@vwtype3.org
Madison, WI 53711-3054
USA

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