In the midst of a 1.9l to 2.1l waterboxer swap.  Things are going smoothly so
far.  I have decided to swap over all the 1.9l parts to the 2.1l engine.  I
swapped over the exhaust system, waterpump, thermostat housing, coolant lines
and intake pipes from the 1.9l.  I ran into a problem with the air box for
the 1.9l though.  It wouldn't fit properly on top of the engine so I put the
2.1l air distributor on the engine and the intake pipes attached perfectly.
I figured, problem solved.  Then I went to put the 1.9l throttle body on the
air box.  It is smaller in diameter and won't fit!  So now I guess I am going
to use the the 2.1l throttle body.  I don't see any way to use the double
throttle position switches from the old throttle body (no way to mount them),
but I bet you could wire in the later model switch (one switch does both
positions on the newer ones) into the system with no problem.  I am also
using the fuel injection system from the 1.9l.  I hope to have this up and
running tomorrow.  Any input from other folks is always welcome, and I'll
post a follow up when I get this puppy running.

Just FYI,
Ken Wilford
http://www.vanagain.com
John 3:16
Office (856)-765-1583
Shop (856)-327-0027
Fax   (856)-327-2242