Zahnriemen 1Z

[Translating...]

Hi,

die Suche ergab KEIN befriedigendes Ergebnis:

Im ContiKatalog zum 1Z stehen 2 ZR-Kits drin, abhaengig von der Motornummer.
(CT 867 K3 und CT 945 K1)

In einem Thread hier https://community.dieselschrauber.org/en/viewtopic.php?t=7011&highlight=zahnriemen+1z wurde der Unterschied LuftMassen- zu LuftMengenMesser als aeusseres Erkennungsmerkmal fuer diese Nummer genannt.
Nun hatte der G3 immer nur nen MassenMesser - also waere die Unterscheidung fuer den Golf sinnlos.


Eine weitere Frage:

Wie steht ihr zu Gates vs. Conti ?
- Sind die Kits vom Inhalt gleich (Riemen, Spannrolle, Umlenkrolle - oder noch mehr ?)
- Koennt ihr was ueber die Qualitaet sagen ?
- Ich tendiere aus dem Bauch zu Conti - hab aber von einem Schrauber Gates angeboten bekommen.

danke
m;

Hi Martin,

During my search for a ZR a few years ago, I also noticed this difference depending on the engine type, but I don't remember any specific details anymore.

Based on my and other people's experiences in motorsports, I would recommend Continental tires because you have the assurance that they will live up to their promised performance.

When is the timing belt supposed to be replaced?

George.

Hi.

Georg-TDI wrote:

...Aus meiner und anderer Leute Erfahrung heraus (Motorsport) würde ich dir Conti empfehlen, da hat man noch die Sicherheit, dass das Teil auch das versprochene aushält...

In my case (AHF), the idler pulley of the Conti kit started to deform after only about 50,000 km.
Interestingly, the replacement roller was identical to the one I found at a generic parts store. Due to lack of time, I didn't have a chance to find a different roller; hopefully, this one will last at least another 50,000 km. In any case, all the rollers will be replaced during the next timing belt change.

Best regards, Rainer.

Is the "Umlenkrolle" actually referring to this small part located between the cam and the pump?

The change is at the door.

According to the sticker, the first oil change was done at 95,000 km, and I now have 183,000 km on the odometer.

Okay, just 2 millimeters to go, and it has to be perfect.

Okay, please provide the German text you would like me to translate into English. I will only provide the translation.

dieselmartin wrote:

Does "Umlenkrolle" actually refer to this small part between the cam and the pump?

Yes. There is still a "large" component next to the water pump, and another guide/tensioning roller on the tensioner assembly.

Best regards, Rainer.

My timing belt slipped and then started rubbing heavily against the tensioner roller. After a short time (I think about 3000 km), it was already 1 mm off, which is why I replaced it with one from VAG. Since then, there has been no more slippage. However, I kept the original tensioner roller.

What is the quality like for Bosch timing belt kits?

Hi Rainer,

I limited my search to ZR tires based on the Conti recommendation, not a complete kit.
I'm sorry, that was an incomplete statement.

I strongly believe that my kit will last a little longer.
Replaced at approximately 86,000 km; currently showing 135,000 km. Everything was checked and adjusted during the serpentine belt replacement this Christmas, and everything was in good condition.
Since I might be resealing my ESP this summer, I would install a new timing belt kit at the same time, because if I'm going to do it, I want to do it properly .

George.

@ Georg

AHU and voltage levels???

I think the tensioner simply needs to be placed on the groove, and that's it?

Or did I misread something?

Don't scare me - my last attempt to change the timing belt in the 90s (on a Golf 2 JP) ended with a broken camshaft , and then I had everything done at VW anyway.

Okay, please provide the German text you would like me to translate into English. I will only provide the translation.

@ Rainer

The WaPu (water pump) in the 1Z engine is driven by a ribbed belt, which is brand new.

I can only think of the following as being involved in the "am ZR" case:

- KW
- Intermediate shaft
- Tension roller
- Camshaft
- Deflection roller
- ESP

m

@ Georg

AHU and voltage levels???

I think the tensioner simply needs to be placed on the groove, and that's it?

How only on a notch?

Ich hab meine Spannrolle selber gespannt. War’s etwa falsch?

Martin, don't follow AHU .
In my opinion, the tension rollers are different on the 1Z and AHU engines.

Now you've confused me .

George.

@ Georg

However, "1Z" and "AHU" are always mentioned in the same column, so they should be treated as identical.

I meant figure G.

http://www.vogel-buchverlag.de/downloads/326_326_zahnriemen3.pdf

Okay, please provide the German text you would like me to translate into English. I will only provide the translation.

Now I understand which notch you're referring to. Thank you, I feel relieved again.

While the 1Z and AHU are treated identically, the tension rollers are still different, as you know.

George.

"HAE?"

How can the tensioner rollers be different if I receive set X for both the 1Z and the AHU engines?

My inquiry to "a reliable source" revealed:

1Z 028 109 243 F

Also, for all other cases as well (i.e., ALE, AFN).

The belt is the same as well.

Where do you "suspect" the difference lies, and how did you arrive at that conclusion?

Okay, please provide the German text you would like me to translate into English. I will only provide the translation.

But if they look different, then they can't have the same number!

Here are some pictures of Febi parts (source: Autoteile.cc):

AH

YES! NOW! (This is a joyful exclamation!)

Thank you, Georg, because when searching with the "1Z" part number, you will receive *both* components, depending on the engine number listed in the Continental catalog.

So, there really is a 1Z engine with the "2-finger roller cam," specifically the older ones, and a 1Z engine with the "AHU-like" roller cam – although probably not in the Golf 3, because "the reliable source" confirmed the identity of the latter for the G3. The "older" 1Z likely has the 182 Nm output from the Audi 80.

Then the difference between air mass sensors and flow meters could really make a difference, and again, the problem arises because of Volkswagen's labeling: using "1Z" to refer to two different engines (202 Nm and 182 Nm).

Okay, please provide the German text you would like me to translate into English. I will only provide the translation.