intro and a question

[Mike Carelse <mcphoto@iafrica.com>]

Hi Everyone,

    New to the list. My name is Mike, I'm in Cape Town South Africa, and I have a 1982 Ur Audi Quattro (Gold).

The car has been stock until a few (5) months ago when I mangled the orig engine. (snapped the camshaft @ 6k RPM).

Have owned it for the last 3 years with no trouble until now.

    Ok, here is my question. I replaced the 2.1 (shim head) T engine with a later 2.26 (hydraulic head) T engine. I had it done at my local mech shop, but!..... It's a Lonnnngggg story, and suffice to say, they do not know how to put it back together the way it was, After THEY dismantled it!(sad world is'nt it?).

    Anyway, there is a plastic housing to the right of the engine, which goes over the tappet cover to a "dust scoop" which bolts over the injectors, and then runs into a blower of sorts, in front of the distributor.

    I heard it is called an "anti-percolation" unit which regulates something about the turbo.

1-    Can anyone on the list verify this?

2-    Is it essential? (what happens if it is left off)

3-    Does anyone have a pic, or a diagram of how this works, and how it is assembled. (the shop has lost some of the bits) and I have decided to finish it myself, but I do not have a manual.

    Any help would be appreciated (the local Audi Agents are just as useless as the above shop)

Thanks a lot

Mike

82 Ur Quattro