2.0l tdi pd fault finally found. please read

[ukaudia4]

Update....broken tappets.. pics below


Ive managed to remove all exhaust tappets out of the arms which is a very fiddly job. But it is possible.

Firstly you must block oilways to sump icase of debris.

Also cover valve springs to stop debris going in them.

Compressed air in tiny hole on top of arms fires tappets out.

I have 4 broken springs!!

All my inlet tappets are still adjusted up solid after another week without oil.

there is no mechanism in these tappets. Oil just gets pumped into the arms and fills up the tappets. Mine are collapsed and worn slightly on the wobbly bit so suspected timing issue causing valve contact or oil starvation causing dry running.


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[ukaudia4]

Video below shows arms with limited access for tappet removal and inlets still pumped up.

Audi a4 2.0 tdi tappet failure hydraulic lifter b7: Audi a4 2.0 tdi tappet failure hydraulic lifter b7 - YouTube

[stevegrass777]

Do them cam bearings look like they are down to the brass/copper . maybe oil starvation has been a problem.

[ukaudia4]

Well its had a new turbo by the looks of it so im wondering if oil pump failed in the past.
I just dont know how to check its recieving good pressure in the head now?

[stevegrass777]

A easy check is start it with the cover off, and you should get covered in the oil squirting out.
The only other thing is to check the oil pressure with a gauge attached to where the oil pressure switch goes at the bottom of the oil filter housing.

[ukaudia4]

I need to try locate some tappets. They are not available on their own it seems.
i was hoping there was a way of checking if oil is coming out of the tappet arms. Once tappets are in the arms i cant see if oil is coming out of them because the tappet stops the oil coming out.
i almost need to run it without tappets to see

[stevegrass777]

http://www.germanautopartsdirect.co....duct_info.html

Don't know if that's it but you have to go through the Febi stuff page by page as it doesn't seem to work on search

[ukaudia4]

Its not that type but i have emailed them to ask. Many thanks

[ukaudia4]

No joy with tappets from anywhere unless i buy complete with arms at £190 pattern!

[stevegrass777]

AMC Complete Cylinder Head for 2.0 16v PD140 BKD Engine - Darkside Developments