Vag 2.0 Tdi common rail engine

[Belle427]

Just wondered has anyone done any work on these?
Brother in laws car, auxiliary belt shredded and pieces found their way into timing cover and timing belt slipped as a consequence.
Probably jumped at least 3 teeth.
I reset the timing and tried it out, engine turned freely but when operated on the starter it sounds like there is no compression.
I’m stripping it today but looking online it would seem you need a complex tool for setting up the cams if you strip the head, I’m wondering is it better to just go for a recon head ready assembled.
Obviously I will wait to see what I find later.
Engine is a 2010 CFFB 2.0 Tdi common rail, 140 Bhp.
Tool in question.
https://youtu.be/mkq63BZFkIo

[Skyrocket21]

You won't really know until you take it apart, the areas to look at other than bent valves, is to take the rocker cover off and look at the camshafts especially around the bearing caps for lifting or even the camshaft being cracked and the hydraulic lifters, because they usually get smashed and will gauge into the guides, diesels have so much compression that you'd rarely get away with a few bent valves like in a small petrol. You'd need to look for how bad the valves are etc, so probably not much help, you won't know until you take it apart, watch out for getting a cylinder head skimmed on a diesel, they have different thickness head gaskets and sometimes it's a big no no.

They have strange looking lifters:

[Belle427]

Thanks, I got it apart earlier expecting to see some witness marks on pistons or valves but I can’t see anything obvious.
It is a strange set up, hard to check valve seal as the head is totally flat.
I’m happy I reset the timing to how it should have been.
Was almost sure I’d see some contact.

Edited to add closer inspection today revealed some minor contact marks to pistons but nothing too bad.
Stripped the valves from the head and spun them in a drill and even then it wasn’t blindingly obvious which were bent.
I was expecting to see carnage when I removed the head to be honest.

Edited by Belle427 on Sunday 28th August 16:41

[Belle427]

Just wondered if anyone could clarify the head skimming part.
I'm aware it's not advisable on most Diesel heads but every refurbed one I've seen has been skimmed.
Some say to just fit with the same head gasket and there won't be a problem.
I'm wondering how people manage if they can't be skimmed.

[Grenadier_45]

I had to have a Renault head skimmed a few years ago when the timing belt broke. Another one you're not supposed to skim, and I was right on the limit of the belt tensioner when putting it back together. Proceed with caution would be my advice, and if it's flat, try and get away with just a light clean-up rather than skimming.

[Belle427]

Thanks, I think that's all they get is a light surface skim so maybe fine.