Date: Mon, 18 May 1998 21:39:02 -0400
Reply-To: Martin Jagersand <jag@CS.ROCHESTER.EDU>
Sender: Vanagon Mailing List <Vanagon@vanagon.com>
From: Martin Jagersand <jag@CS.ROCHESTER.EDU>
Subject: Left motor mount. (Diesel 1.9 TD Swap)
Thanks to all those who sent me answers, comments,
suggestions and more questions. I'll try to get
to everyones emails in time. Here's a start:
The left motor mount problem.
The motor mounts on the inline 4 attach towards the rear
(as mounted in a vanagon) of the block. Even with the
standard naturally aspirated diesel, the manifold and
exhaust pipe pass very close to the mount.
With the 1.6 VW TD engine as made for transverse cars
the turbo and waste-gate interfeared with the motor
mount (mostly the wastegate was in the way). Mark and
Craig Drillock has verified that this problem infact
occurs with the 1.9l TD also. (For I while I had
some hope that the somewhat taller 1.9 block would
put the turbo out of the way of the mount).
So for the 1.6l the solution to this problem was
to use a TD engine or manifold from a longitudinal
engine. (As in original Europeean TD transporters
or VW Passat/Quantum).
These various exhaust configurations can be seen on:
http://www.cs.rochester.edu:80/u/jag/vw/engine/turbo/turbo.html
When the 1.9 came in the early 90's the last transporter
had already left the line, and the Passat was changed to
transverse engine configuration in the A3's. Thus the
1.9 engines we find today are only with the centrally located
outlet style manifolds, not the offset we need.
So what to do, what to do? Here are some suggestions
that I'd appreciate your input on:
1. One can buy an aftermarket motor mount from Germany.
Helmut Zeidler in Germany sent some addresses to
German parts places which I'm sure I can dig up given
enough time. Price? I heard 300DM (Which is $200?)
But then I'd have to add freight. Air is probably expensive
for a heavy thing like this and customs fees etc.
Pict of an aftermarket mount:
http://www.cs.yale.edu/users/jag/vw/tdiswap/leftmotormount.jpg
2. One could try to build a new motor mount oneself (or
using the friendly neighborhood welder). Should not
be too hard if one takes out the std mount and makes
a rigid jig to replicate the end points. Still quite
a bit of work for just one mount.
3. Use the old style quantum manifold. So would there be
a performance penalty in doing this? I know that the
intake manifold is different (D-port on the 1.9, and has
larger valves), but how about the exhaust?
4. Someone got the 1.6 Jetta TD in there by grinding down
the motor mount. Maybe this (with some reinforcement
on the other side) is doable. Mark or Craig, what's
the magnitude of the interference?
/Martin
--
Martin Jagersand email: jag@cs.rochester.edu
Computer Science Department jag@cs.chalmers.se
University of Rochester
Slow down and visit the VW diesel Westy page:
WWW: http://www.cs.rochester.edu/u/jag/vw
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