Very fast HPFP follower wear.

[rich83]

Middle follower... been in a car (audi a4 2.0T DTM) for 5k. 

What would cause that?

This is a pic of the cam itself.



Any ideas?

Rich

[john a]

Has that HPFP been uprated?

[rich83]

Yes.. just waiting to hear back whether its APR or internals. (im guessing its internals)

[bacillus]

Is that cam smooth to the touch?

[speedracer90]

U can tell wether its an apr or just internals by looking at the size of the piston inside the pump. Apr has a larger one and is machined out.

[rich83]

Ahh... this might have been the reason!!!

Rev. A camshaft.



 

[GLIDN]

I'm afraid it's not an uncommon occurrence.

I had to replace a cambucket at 3000km's. There were some bad cam buckets rev F I think that was problematic. But other cars I have seen no wear at 15000km's with APR pump as well.

But I guess it most likely will end up being the Camshaft if I'm not mistaken.

[vRSAlex]

Deffo on the early cam that A4 is.  What year is the car?

[rich83]

Not sure mate... 05/06 at a guess.

Im shocked at how much that cam has worn... 

[lm_gauci]

The threads on ed38

http://www.edition38.com/forums/index.php?showtopic=467805&st=220

[rich83]

Thats the one...