Unterschied ALH AFN Motor | Posts 16+

I think the first 1.9 TDI engine that was mass-produced was the 1Z.

If I may add, in reference to Bertil:

1Z
AHU
ALE
all engines that were in the G3 (including the ALE, since the G3 Var was built until 1999 - at that time EU3 must have been MUSS)

The AGR was definitely introduced with the G4. He will also have the features I mentioned for the G4 VP TDIs (flipped ESP, air intake mirrored == LLK on the right)

m

dieselmartin wrote:

...The AGR was definitely introduced with the G4. He will also have the features I mentioned for the G4 VP TDIs (flipped ESP, air intake mirrored == LLK on the right)

So, is the AGR therefore (from an air duct perspective) a caged AHU or ALE?

So, Donalexo hat Recht. Allerdings hat er mit der Geschichte erst mit dem Golf IV begonnen. Of course, the 1Z was the first (4-cylinder) TDI, but it was never installed in the Golf IV.

In the Golf IV/A3, on the 90PS engine, there was the AGR and later the ALH (Euro3), and on the 110PS engine, there was initially the AHF (Euro2) and then the ASV (Euro3).

Hi,

Quote:

For me, the terms "successor" and "parallel development" stand in direct opposition to each other!?! I understand "parallel" as "simultaneously", and that is correct for 1Z and AGR NCIHT.

That's why the whole thing was presented as a skeptical question about Donalexos's explanations, because I couldn't really believe it.

Regarding the topic of "mirrored," another interesting thing: The ASV 4 might also be "mirrored," meaning LLK on the right, correct?

In Ibiza, the LLK is on the left side of the ASV, however, the air intake is located on the right side (in the direction of travel).

It's a quite complex maneuver, from the turbo to the left, then to the LLK, then back up, across to the under the engine cover, then a sharp turn, and finally into the garage/AGR area from the right.

Should the pressure to save have become so extreme that the G4 components were used, and a "non-mirrored" engine was built from the mirrored ASV, despite the impossibility of achieving this through air guidance?

How does the air routing look in the Goelfen that have the LLK on the left?

Best regards,

Jan

LLK Links is exclusively for G3 (i.e., VW)

SO sieht das aus:


The AFN looks like this (with K&N and a painted cover):

http://people.freenet.de/golf-schrauber/g3motor.jpg

And thus, the ALH.
http://www.luxus-wg.de/~martin/auto_bilder/motor_ALH.jpg

Hello everyone!

You are of course right, that the 1Z was historically the first 4-cylinder TDI.
However, I only started using it with the A3/G4 engines, which were the ones that had the Lufi on the left and the LLK on the right.
As far as I know, there are significant constructive differences between the engine blocks of the 1Z series (e.g., 1Z, AHU, AFN), and those of the AGR series.
When comparing the two, I also noticed differences in the engine block, in addition to the mirrored intake tract. I believe that the AFN actually has a secondary or compensating wave that is not found on the AGR/AHF/ALH/ASV lines.
The fuel injection pumps and their arrangement are also different (compared to the EGR line).
Therefore, I have only considered the engine base position based on my own experience.

Greetings
Alex

LLK Links is exclusively for G3 (i.e., VW)


... and in the 35i

yes yes the Passats:



By the way, this is a 1Z in a 35i (or 3A).

He had a large coverage (similar to the AFN) starting from a certain model year.

m;

Hi Martin,

with Goelfen with LLK on the left, I naturally meant the G3, sorry.

Seat has actually come up with something really wild based on the images!

The motor looks basically the same without the cover as the ALH (which is not surprising), the distance to the LuFi is exactly the same (it is probably the same LuFi box).

Also auch the AGR/Exhaust Gas Recirculation unit is the same, but then the intake air pipe runs across, passing the ESP on the left, where it is close to the coolant hoses and the pipes between the turbocharger and the intake air system, and then goes down to the intake air system.

I'm going to take some pictures of it, or maybe look for pictures at home (taking off the costume isn't fun in this weather - but maybe you can see enough with the costume too) and then post them when I have the chance.

Likely, the LLK couldn't be mounted on the right side because there's almost no space between the engine and the right-hand wheel arch to run the pipes (especially not the ones from the turbo to the LLK).

Best regards,

Jan

Hi Jan

Do you mean something like, for example, as with the ARL (150 hp)?



Don't be surprised by the image name, I was actually referring to the agricultural practices in the agricultural research laboratory

The ARL does not have the engine compartment LLK, but the large one in front of the water cooler.

@ dieselmartin:

Your last picture is of a 35i. What's surprising is: In the upper left, you can see the 2 control lines that go to the solenoid (the red and blue hose). Why are they disconnected? That's exactly how it looks for me. The red and blue hose are disconnected and connected again with hose clamps and a plastic tube. I always thought that it was just like that for me because my predecessor had a rat damage... And now I see the exact same thing on your picture

@ the other 35i drivers:
(e.g., Warlord)
Is it also like this with you?

@ Doc

The Lsededruckregelventil is located on the far left in the image, next to the reservoir.

At G3_1Z, it's located right next to the Lufi, so it's much closer to the turbo.

Perhaps there was a pre-fabricated hose kit available for production, which was only suitable for G3_1Zs. For the 35is, it had to be lengthened.

Ignazio Lopez, I trust him completely!!!

It's also funny that the 35i_1Z cover extends further forward than the G3_AFN, even though both engines are the same length and the G3 would have space for the longer nose.

35i_1Z:
http://www.luxus-wg.de/~martin/auto_bilder/Movornhoch.jpg

"This is because the AFN lid has a more complex design (I built one for my 1Z - what a huge undertaking (holder, tubing, ESP connections !!!) :
http://people.freenet.de/golf-schrauber/AFN_auf_1Z.jpg

Hi,

I also believe that there was never an AFN engine in a Golf 4, but why do some Golf 4 R-TDI's have an AFN engine under the hood?



Or should the G4 Kit Car have only received an AFN?

Greetings
Thomas

Constructive difference between 1Z, AHU, AFN, AHH(?) and the modern stuff: In the new designs, the block of the PDs is used, eliminating the intermediate shaft, vacuum pump to the crankshaft end of the NW, oil pump and/or WP via the ZR, I'm not sure about this right now.

My 1994 1.6 Passat doesn't have a motor cover at all.

-roland

@Doc
On my 35i, all the wires are also 'pieced together'. And I think Dieselmartin's explanation is probably the most logical.

Greetings,

Dominique