Moz18

Right… Audi s4 4.2 v8, 78k genuine miles with full Audi service history. Just under 11 months MOT. Why would this be worth more scrap when it could literally be just a case of replacing valves? Money isn’t an issue for me as I’ve already stated… FOR ME ITS LEARNING or did you miss that part?

Not sure not even thought that far ahead? Would probably keep it for myself

Yes I guess magnet. For me it’s all about learning, I’m getting into the mechanics side of things and these are great ways for me to learn! So far the car owes me less than £400! The car is in immaculate condition!

Car was cheap as it was a family member … if the valve did indeed make contact with the piston, wouldn’t this have marked the piston? The piston in both 2 and 8 look perfectly fine?

Hi guys thanks for the responses! So I recently purchased the car for a VERY cheap price with this problem. (I love a gamble!) again paid very cheap! the car still starts just misfires… On both cylinder 2 and 8 it’s only 1 valve on each that is only very slightly open. Would the cams being out not cause this? I’m from the West Midlands by the way Magnet!

Hi guys new here! Love the site and I am looking forward to getting to know you guys! so…. I have an Audi S4 4.2 B6 that has a severe issue 😔 car had random misfire on both bank and a camshaft fault. Confident it was timing chain I decided to do a compression test… all cylinder came back around 195 psi apart from cylinder 2 & 8 which were both 0! I have pulled the intake manifold so i could see the intake valves and on both cylinder 2 & 8 it appears 1 valve on each stays open a tiny bit? Any ideas what could be the cause? Here is a couple of photos of bank 1 cam shafts which seems out of time abit if im correct? thanks in advance!!