Help Urgent!!!!

[richandhazel]

This sounds strange - but do you have enough oil in the engine?!

If you are low for instance, I know that going round a right hand bend will set it off.

Tin

Certainly sounds like oil starvation exactly as Tin suggests. Also the first thing thats going to suffer is the hydraulic tappets........hence your loud tapping. I assume you've checked the oil level by now, how was it?

[willy368]

Gaz,
I have experienced something like it in the past,  when a cheap and nasty oil gets hot, like after a fifty mile journey and then you demand the engine to do some serious work like racing a jag!  What can happen is your oil is now too thin and will not feed all the way to the Hydraulic tappets.  I was a bit short of money a few years ago and put in some cheap and nasty oil from a German Supermarket.  I then couldn't understand why the buzzer under the dash and the pressure light was comming on.  I changed loads, oil pressure switches etc.  At the end of the day I simply changed the oil for a good quality mineral oil (GTX) and the problem ceased immediately.  The engine is going very strong to this day.  Try a simple oil change first.

Regards Mick