Sean Bartnik wrote:
>Hey all,
>I think I figured something out today.  On my '78 bus, I have
>discovered that the EGR system appears to be disconnected.  The part
>of it inside the engine compartment is still intact but the part
>where it connects to the exhaust pipe on the driver's side just in
>front (FIF) of the muffler is non-existent.  The hole on that part of
>the exhaust pipe has been crimped shut.  Apparently someone has
>removed this. .... being an environmentally conscious fellow, I'd
>like to have my bus running as clean as possible.  But if it costs
>too much to fix, then I would be willing to run a little dirtier (ah,
>the wonder of economics in action).  Any ideas?

>From the exhaust pipe to the engine tin, there is supposed to be a
little filter pack of some kind.  From the picture I've seen, it looks
like the filter, pipes, and flanges are all one unit.  Probably a VW
only item.  My bus is equally disassembled, and I've been meaning to
call a dealer and find out if the part is still available and how big
a hole it's gonna burn in my pocket.

As to whether or how much it improves engine operation, I don't know.
Anyone?

My question is, if/when I get this filter thingy, what kind of
adjustments are necessary in terms of a tune-up to make the engine run
correctly?  Also, how do you test the EGR valve to determine that it's
working?

-Rodney