Between changing lifters to ina type and camshaft job only 5 days and 300km.
The irony in these is that before any job on the car there was no knocking nise at all.
I discovered that i need to replace camshafts when i oppend the oil sump in sake of gasket leak.so in the sump i fond parts from cam rockers etc...
So after everything new and once more changed lifters(ones putet from the camshaft set had no name on them) to ina again samo like old mercedes knlcking sound.like some old car with mechanicly adjustable valves and to far retarded.....
And today i did some more test.the noise is limited from 1000-2000 rpm below and over the noise is gone.
And one more question?
Can a fuel injector do that noise??
I also own audi a6 c4 2.5 tdi 5 cilynder and it produces similar sound but i know the source there,ael engines have mechanical vacume pump directly on the camshaft so in my a8 i cannot find the noise maker.
Even thou i think it comes from the right head and the cylinder closer to the windshield.
I suspect on 2 possible things
Eather bad oil (inside is aral 5w40 500km old and ufi oil filter)
Or noise injector(debrie or sticed somehow closed)
Any ideas or similar expirience wont harm
