Date: Wed, 6 Mar 96 0:16:01 EST
Sender: Vanagon Mailing List <vanagon@vanagon.com>
From: jag@cs.rochester.edu
Subject: VW 1.9 diesel engine, candidate for engine swaps.
Hi, hows the engine swap team doing? VW has put up some exciting
pictures of the 1.9 TDI engine on their web pages. This got me
thinking on suitable diesel to diesel swaps for the vanagon.
There is a particularly good picture of the new engine on:
http://www.vw.com/tech/art/engine.jpg
And a cross cut on
http://www.vw.com/tech/art/engine2.jpg
On the outside this engine looks pretty much the same as the
1.6 turbo diesel. Only difference is an added EGR circuit, and
hookups for the intercooler. European car had an article on
swapping one of the older 1.9 indirect injection diesels
(sold in Canada) instead of a 1.6 in an older Golf. I typed
in the relevant parts of the article below.
I can think of three diesel swaps that make sense to me:
1.6 turbo, 1.9 IDI, 1.9 TDI. Was/is there a 1.9 IDI turbodiesel,
or is the canadian TD still a 1.6?
1.9 TDI:
Type Direct-injected, intercooled turbo diesel
Displacement 1896cc
Bore/Stroke 79.5x95.5mm
Output: 90bhp(66kW)@4000rpm
Max. Torque: 149lb-ft(202Nm)@1900rpm
1.9 IDI
Type Indirect injection diesel
Golf implementation (Canada)
Output: 75 PS@ 4,200 RPM
Max. Torque: 150 Nm @ 2,400 RPM
Transporter implementation (Europe):
Output: 45 kW/61 PS bei 3700/min
Max. Torque: 127 Nm at 1700-2500/min
1.6 TD
Type Indirect injection turbo diesel
Output: 68 PS at 4000 some RPM (Out of my head)
Max. Torque: ??
I measured the clearances on my current 1.6 in my Vanagon. There
seems to be room for the additional height of the 1.9 engine.
In fact the injection pump is sticking up a lot higher than the
engine, but even that one could be raised a cm or so.
The remaining thing to check is weather the vanagon "tilted"
installation oil pan and pump can be transferred to the 1.9.
Canadians with 1.9 Golfs, do you know if the 1.9 and 1.6 pan
and pump are interchangeable?
A turbo swap would be more involved. I'm not sure that the turbo
clears the lower engine mounting HW on the diesel vanagon.
One would also have to figure out how to install another air
cleaner and reroute the air intake hoses.
Does anybody know how much 1.9 IDI's goes for from the boneyards
in Canada? Are there any here in the east?
/Martin J
-------------------------European Car article--------------------
(Swapping 1.6 to 1.9 in an old Golf.)
Swapping it out.
Moving up to the increased power and torque of the 1.9 engine is as
simple ase swapping motors. This is easily accomplished in the average
garage by a mechanic with the Bentley manual close at hand, and some
experience in engine swapping. When the team at Eurospec began the
swap on their Golf they had three areas of concern:
1. How would the exhaust downpipe match up with the exhaust manifold
now that the head was 16 mm higher?
2. Would the 1.6 liter injection pump be adequate?
3. Would any other engine accessories need to be changed?
The answer to all three questions was "yes". There was enough
clearance to allow the exhaust to clear with the 16 mm block.
The bigger 1.9-liter engine runs with the 1.6-liter injection pump.
The pump was adjusted to allow for the extra displacement.
This is a simple matter of adjusting the fuel delivery. You
can do this yourself. Eurospec experts will be able to help you.
Eurospec includes injectors with each engine. Finally some small
changes are needed to use the 1.9 engine. Eurospec includes a
new timing belt and a smaller diameter idler pulley with each motor.
All the accessories bolt on, but the cam timing belt cover requires some
clearing. This is a job easily accomplished with a pair of tinners
snips or a anibbler. Under the hood, with the 1.9 L motor you may
need to trim the hood insulation.
Which head(s)?
Eurospec bough in a number of the 1.9-liter engine with either the
1.6-liter head, or the "D"-port 1.9-liter head. The 1.9 head has
larger ports, as shown in the photos. It also features larger intake
valves, 36mm instead of the 34mm intakes of the 1.6 L head. For best
performance the 1.9 L head is the way to go.
Eurospec distributors can provide detailed instructions regarding the
modifications needed to use the "D" head with your 1.6 manifold.
Basically it's a matter of welding and "match-porting" the manifold
to the intake manifold gasket. It's a job better left to someone
with experience. Eurospec will be offering this optional service.
Eurospec is selling the 1.9 liter with the 1.9 head for $1895, and
$1995 for the 1.9 with the 1.6 head.
I was pleasantly surprised driving the Eurospec Diesel Golf -- gobs of
torque and smooth power delivery. If you've got a diesel that's tired,
or could use a few extra foot pounds of torque, the complete 1.9
package is a good way to renew your oil burner's life. Fuel economy
remains almost identical, as as you don't have to put your foot
in it so much to keep up with the higher pace of todays roads.
Eurospec Racing Ltd.
(408) 848-4203