List member Karl Mullendore has installed a 1.9TDI motor in his personal
Westy using a purely mechanical pump from the earlier 1.9TD AAZ engine
code. Most of the benefits of a TDI without all the electronics. Prior
to the TDI, VW diesel engines needed only 1 wire to run down the road,
the fuel shutoff/on valve control wire from the ignition switch. The TDI
diesels use an ECU with 2 or 3 times the number of wires as a waterboxer
fuel injection system and even more sensors to go along with all the
wires. Using the AAZ engines injection pump on the TDI motor does away
with all the complexity.

For a while Overland Parts sold TDI engine kits for Vanagons using the
mechanical pump but they are no longer available.

Mark

Jeffrey Schwaia wrote:

>This kind of swap has already been done.  As a matter of fact, Overland was
>offering a mechanical pump version of the TDI (complete motor, etc.) at one
>point.  No need to guess on what it takes, just search the internet.
>
>Cheers,
>
>Jeff
>www.vanagonparts.com
>
>
>-----Original Message-----
>From: Vanagon Mailing List [mailto:vanagon@GERRY.VANAGON.COM]On Behalf
>Of Martin Jagersand
>Sent: Sunday, April 03, 2005 5:12 PM
>To: vanagon@GERRY.VANAGON.COM
>Subject: Re: re diesel injection pumps
>
>
>Hi Ben,
>
>The swap you are doing is quite interesting. Putting in a 1.9l TDI block
>while keeping the simpler and easier to understand/maintain mechanical
>injection pump from the 1.9l TD. You should be able to gain the higher
>efficiency (more power and lower fuel consumption at the same time!)
>from the TDI, while maintaining the simplicity of the TD setup.
>
>As you mention there will be some difficulties in getting the pump
>tuned right to work with the new block. ........
>
>