Hey guys,

I'm owning a 6 for four months now, at purchase I was aware that it was tapping, but not that it came from the valves.
After a month I brought the car to my father's garage and the mechanic there wanted to assemble and re-assemble the engine for free. When the engine was took apart, the head has been brought away to get overhauled.

The engineer changed all the faulty guides and valves (2 inlet ones), provided the head of new seals and skimmed the head. I can assume that they checked it thoroughly.

When the engine was back together it was still tapping and I was sure it was coming from the head. The mechanic said it would solve itself after driving it a few weeks. After 3 months it seems the noise is only getting louder.

I know that bent valves usually are caused by a snapped belt and that it could go wrong with (re)timing the belt, so the valves and pistons would hit each other.
My father has a 100% trust in his mechanic and the engineering company, he said the tapping wouldn't be caused by the above stated failures/problems.

Is there someone who can give me certainty that the valves are or aren't bent ?
The first video is before the engine was taken apart. The other one is from today, 3 months after the head was overhauled.

before:
http://www.youtube.com/watch?v=xBWYpAkX9yk

after:
http://www.youtube.com/watch?v=eEybxJMEKIY

Thanks in advance.

Hi Tom,

If you follow the "work carried out in west london" link in my signature you'll come across my project thread.

I Re-conditioned my cylinder head and it tapped as soon as I put it all back together. This was because I rotated the inlet cam while the exhaust was pinned into place when assembling the head on the block.

Just thought I'd show you as this mistake is easily done and is hard to see when you get the head back off.

Or, like welshpug suggests, it could be tappets...

Good luck with it though!

________________________________________

Deepak Gohil

Yes

Its always the guides should have had the bent valves and their guides replaced