ZR Switch 1Z vs. ASV: Comparison

Hi,

If I'm lucky, a ZR (water pump) replacement will be due soon on an ASV (engine type) (if my partner buys it and I'm allowed to drive it .

Last year, I successfully replaced the 1Z, and I have all the tools I need for the 1Z.

The ASV is different again now:
Camshaft-mounted fuel pump, split electric fuel pump impeller...

What other tools do I need (or need to build)?

- Cam profile gauge with recesses.
- 6mm shaft for the pump.

I found the instructions here:
http://pics.tdiclub.com/pdf/a4timingbelt.pdf

"Thank you."
m;

Hello Martin!
You actually don't need any special tools for the ASV. A regular M6 screw is sufficient for the fuel injection pump, or if necessary, a 6mm drill bit. The camshaft is designed so well that you can easily align the notch precisely horizontally with your eye. Otherwise... impact wrench, torque wrench, a large water collection tray (WaPu!), air pressure gun, that's all I need besides my toolbox at work. When you go shopping, remember to get the gasket for the vacuum pump!
Best regards,
Dominique.

Hello,

I found the instructions very helpful.

I would, although that would probably not be very professional.
Do not loosen the camshaft sprocket, and when tensioning the belt, remove the 6mm drill bit from the ESP wheel.
Prerequisite: The person must remember the exact positions of each individual gear.
It is being said that this could change the valve timing and basic settings of the ESP, but that is likely negligible.
After replacing the timing belt on my ALH engine, the 'TDI Timing Checker' indicates that the basic ESP setting has not changed at all.
My guess is that the tax regulations will not change.

Regards,
Borys.

AAAAAAAAHHHHHHHHH

Damn, the WaPu is attached to it, I had forgotten.

Well, my wife will probably be thrilled when I disappear into the workshop for 2 days (if that time comes) with the ASV .

What is the purpose of this crankshaft locking plate mentioned in the American manual?

m,

@Martin
Not only that, but go buy a timing belt kit for an ASV and compare the price to the one for a 1Z... you'll soon be able to buy two for the price of one, and you'll also get the water pump included... it's quite expensive overall. The crankshaft locking tool... if you have one, great, it makes the timing belt replacement more convenient, but if not, then it's not a problem. The markings on the flywheel are actually quite clear, and after you've done this a few times, I think you'll have the hang of it, and you won't accidentally twist the crankshaft when installing the belt...

@Sauger
It's possible that the first belt was only slightly off in a very small area. Let's make the second belt the one that's adjusted, and see if the camshaft timing is completely different. I once had a similar issue with an AFN engine; the first belt had a color marker on the pulley at 90,000 km. I replaced it for the second time at 180,000 km in the workshop, and it was almost two teeth off. Also, a new diesel timing belt can be quite stiff, so I developed the habit of completely removing the camshaft wheel and attaching the belt with the wheel together, which makes it much easier and is also gentler on the belt.

Best regards,

Dominique.