RE: [T3] Re Fuel Problems...or?

[Jim Adney <jadney@vwtype3.org>]

On 31 Jul 2009 at 5:26, Daniel K. Du Vall wrote:

> Is this only an issue with the breather if you using FI? 
> My 72 has the ports on the heads but they have been caped off since
> there is not Duel ICT Webbers on it. 
> Only the breather box has a hose on it. 
> Any complications to having them caped off on no longer FI setups?

It has nothing to do with the fuel system type. You have to ask yourself 
whether you've provided any way for the crankcase blowby to escape the case. In 
most carb conversions of 72-3 engines, this results in all the blowby coming 
out around the rear end of the crank, between the case and the fan housing, 
because all the other routes have been blocked off.

Owners generally don't notice this until they stop to ask, "Why do I have piles 
of crappy oil blowing out between my engine and case making a mess of my engine 
and driveway?"

The only good fix that I know of is to install an earlier breather (and oil 
filler pipe) and route the breather tube into one of the air cleaners.

The ports on the heads are meant to be clean air inlets, but with this 
conversion it's appropriate to just block them off. If you don't use them, then 
at your next valve job, it would probably be best to swap them for heads 
without those ports and make the original 72-3 heads, which are hard to find, 
available to someone who needs them.

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

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