Timing Belt Replacement 1

Who has ever changed the timing belt on a TDI 1Z (first series) themselves?

I need to finally replace the ZR, but I don't know how to properly tighten the new ZR. For my 1Z, I also need to measure the belt tension. For the 1Z, the second one. Series are cancelled, as there is a semi-automatic roll in them.

Who has done this before?

Thank you!

Hi Dirk,

If it is not possible to retrofit the semi-automatic roll, you can proceed as follows (I have always done this with the old TD's):

You place the nut driver into the clamping roll before loosening the nut and note the position on the cam wheel. When tightening, you turn the nut driver to this position, and a slight increase isn't a bad thing either. "This has always worked for me, especially since the position seems to be roughly the same even with different MKB's."

If you want to be absolutely sure, you can get the testing tool at www.matra.de.

Buy a new intermediate piston ring now! It's usually a mess...!

Best regards,
Christian

While I have already familiarized myself with the topic, what exactly is an intermediate wave, and where does it occur?

Diesel-Dirk wrote:

Although I've already familiarized myself with the topic, I'm still unsure about what exactly a "buffer" is and where it's used.

It's located on the shaft between the crank and the ESP shaft and drives the oil pump!!!!

Warning: There are two seals - O-ring plus rubber ring I once forgot the rubber ring and had to disassemble everything again

Suiting Torque: ZW Screw: 45 Nm, Gasket Housing: 25 Nm

Build your own crankshaft and camshaft holder!!!!!Never loosen or tighten the crankshaft bolt without a holder when using a fixed measuring tool!!!!! When solving, make sure no piston is stuck in the OT... but it's not ideal for someone as meticulous as me!

Best regards,
Christian

Thanks for the tips, by the way.


Now everything is clear. But with the TDI engine, the oil pump is driven by the ribbed belt. Afterwards, I can still watch it.


To the roll of yarn:

Unfortunately, the semi-automatic version cannot be retrofitted, as the fixing bolt is different.

Diesel-Dirk wrote:

But in the TDI engine, the oil pump is driven by the ribbed belt.

That's news to me / I don't believe it!!

Best regards,
Christian

Ok. You are right.

I first only saw the image of the role. It has a ribbed surface. That's why I thought of the ribbed belt. But it is clearly visible in the representative's guide.

I finally replaced the timing belt and all the associated parts. It was long overdue. The timing belt had stretched so much that the tensioner, which fortunately is semi-automatic, was no longer on the mark, but 1 cm off. With 30,000 km exceeding the recommended replacement interval, this is no surprise. The bearings of the other roles, some of which were still the original ones (210 Tkm), were already showing signs of wear and releasing grease.

The real reason I'm getting back to you is because the seal on the intermediate shaft was already quite worn. Thanks to your tip, I was able to order the parts right away. It was urgently necessary.


As a hobby mechanic, I spent a total of 7.5 hours in an unheated garage today on this job.

Diesel-Dirk wrote:

As a hobby mechanic, I spent a total of 7.5 hours in an unheated garage today.

Hi Dirk,

Congratulations That went really well

Best regards,
Christian

Diesel-Dirk wrote:

The oil levels of the other components, some of which were still original (210,000 km), were already showing signs of leakage.

Just for fun, give the old spool a spin. If the entire system is completely broken, then the wheel turns like a perpetual motion machine . I experienced this with my old TD, and it means exactly one minute before twelve!

Best regards,
Christian