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Re: [T3] Air Cleaner and Emissions Control


On 24 Jul 2003 at 0:14, Chris J Valade wrote:

> I apologize for not being clearer: the engine is a 1972 (based on the
> part number on the crankcase which I posted and then got a response that
> it was a 72 Dual Carb).  The PO had the engine replaced and then
> converted it to electronic FI (or perhaps it came that way, I'm not
> positive).  Although it is possible this car has had more than the 2
> engines I am aware of.  Someone on the list noted that it is likely they
> ordered this engine from Europe, so I'm really going on nothing I can
> verify myself=)

Was your engine number a Txxxxxxx number? If so, it means that this engine was 
rebuilt at some time using a case imported as salvage from europe. That's okay, 
I've done the same thing myself.

It sounds like you have a US 72 FI engine that has been rebuilt with a European 
case. This FI engine originally came with a breather box that had 2 plastic 
plugs on top and no side outlet. I gather that you now have the earlier box 
that has a single plastic plug and a side breather outlet. You need an earlier 
air cleaner to go with it. That air cleaner will have the port you are missing. 
This is the way to go to get things straightened out.

With the 72 engine there is something you should check out: look at the front 
plate on your IAD. For 72-3 the front plates had a tube welded to them that 
sweeps around the right side and then points to the rear, near the cold start 
valve. This tube used to connect to the 72-3 breather, but you are better off 
just setting this up like a 68-71 and plugging that tube. Run your breather 
hose to the (early) air cleaner.

> Again I failed to explain well enough: I was able to figure out where on
> the air cleaner the AAR connected, but wasn't sure which port on the AAR
> itself connected to the air cleaner, and which port connects to the AID. 
> I would assume it either doesn't matter or if it does that it would be
> the lower one.

The horizontal port on the AAR connects to the underside at the front of the 
IAD. The vertical port connects to the air cleaner.

> So yes, it is a 72 engine...what does that mean the 3/16"s port on the
> AID is?

72s (only) got a distributor with both vacuum advance and retard. That second 
part is for the vac retard.

> I've only got two ports on my air cleaner, one which is 15/32 (the same
> size as the port on the oil breather) and one which is the same size as
> those on the AAR (although I don't recall the size off hand and I'm in
> too much of a rush right now to check).  It is based on the size that I
> am doing this on, but I wanted to be certain.

The port a 1 O'clock is for the charcoal cannister. You need an earlier air 
cleaner to go with your earlier setup.

I have any of these parts that you might need.

-- 
*******************************
Jim Adney, jadney@vwtype3.org
Madison, Wisconsin, USA
*******************************

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