[Vwdiesel] Porsche 944 TDI
pmdolan at sasktel.net
Sat Dec 13 17:59:17 PST 2008
I am not sure if I responded to you here, since the issue of 924/944 swaps comes up on a lot of forums.
The only engine that really makes sense is the 2.5 litre inline 5 (TD or much better TDI - or M-TDI if you need to keep it simple).
The reason is that it bolts up to the 944 bellhousing. Several 2.2/2.3/2.6 Audi gassers have found their way into 924/944 cars, but not diesels of which I am aware. The issue is that at least on the TDI, there is a large flywheel/damper weight on the backside of the engine on the fuel pump drive. I have heard that it will run into the firewall. All of the littel 4 bangers have the VW transverse bolt pattern and don't fit without a non-existant adapter plate.
I have a 924 M471 and an Audi 2.0 TD specificaly to do this swap, just not its turn in the shop yet. A 2.5 M-TDI Vanagon Syncro is using the time and space right now.
----- Original Message -----
From: Greg Johnson <gregsj2 at gmail.com>
Date: Saturday, December 13, 2008 5:10 pm
Subject: [Vwdiesel] Porsche 944 TDI
> I wrote a month or so ago and asked if any of you were aware of
> any Porsche
> 944 TDI conversions. I heard back from a few of you. Thanks for
> yourresponses and ideas. Apparently, several folks have
> considered it, but
> we've not found anyone who's actually done it, so we decided to
> more forward
> and perform due diligence. We've purchased manuals for the TDI
> and for the
> 944 and are trying to get sense of what may be necessary. I also
> took on
> the task of researching TDI's (mostly by reading TDI forums and
> particularlythose on Fred's). I wanted to share some of my
> thoughts, mainly to
> determine if we're on the right track.
> 1.9 ALH TDI
> ALH engines used in mid-1999 through 2003 Golf and Jetta TDI and
> New Beetle TDI. The issue with these engines is Manifold Carbon
> and Soot.
> The carbon has to be cleaned out and it's not an easy task. Once
> that'sdone. the problem can apparently be
> eliminated with http://www.dieselgeek.com/servlet/Detail?no=299 and
> http://www.dieselgeek.com/servlet/Detail?no=413. We should also
> consider bypass kit: http://www.dieselgeek.com/servlet/Detail?no=462.
> 1.9 TDI – Pump Duse
> The PD has oiling and cam failure problems. The engine used
> skinny cam
> lobes to make room for the injector rocker lobes and it's a weak
> design. Some of the posters indicated that the aftermarket should
> have reasonably
> priced parts available to fix this issue and the job
> is fairly easy so labor costs will be low. One mechanic indicated:
> "There will be significant circulating metal left in the engine,
> despite the
> best of efforts to clean things. Steps I took were removal of oil
> from low
> lying areas of the head, oil cooler replacement, and oil pan cleaning.
> Passages in the block and crankshaft are bound to have metal in
> them, so I
> again urge owners of these cars to install the Dieselgeek By-Pass
> filtereither as a preventative measure or to clean things up
> There can also be problems with this engine from not using the VW
> 505.01spec with the high wear additive.
> Passat 2.0 litre BHW TDI
> Some of the Passat engines have had balance shaft chain drive failures
> around 100k miles, and since the balance shaft module drives the
> oil pump
> this is generally not a good thing. VW has just issued a TSB to
> convert the
> chain drive a newer gear drive system, but it is not a recall and
> is done on
> the owner's dime (around 30,000 dimes) If the engine makes a
> "can full of
> marbles" sound from the crankshaft pulley area one should steer
> clear. The
> other item - if the oil used has not the VW 505.01 spec with the
> high wear
> additive, the cam and followers could be worn out by 100k or so.
> General Thoughts
> It would appear to me that the 1.9 ALH TDI (2003 and before) may
> be the best
> bet. Additionally, from a fuel perspective, they may be more
> friendlytowards BioD. What do you guys think?
> Thanks in advance for your collective wisdom!
> Greg J
> Vwdiesel mailing list
> Vwdiesel at vwfans.com
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