Hi Channel Hopper
Thanks for getting back to me.
I can dismiss the chain. All seems quiet in the vicinity of it.
I have also checked the injectors and they are OK. The sound a blow by makes is not the same as the metallic sound I am getting.
Since I put some Ceramic grease on them when I put them back after renewing the timing chain, I managed to get them out easily this time. They are very well seated with new copper seats.
It seems to me to be too much of a coincidence that a tappet could suddenly become faulty just after doing the chain!!! However if they are going to go they have got to go sometime!!
I change the oil regularly at 6k intervals so I know the oil is in good condition always and was very careful not to let any muck get in when doing the job but sods law prevails sometimes doesn't it??
I have just been reading the manual and it does seem that if I take the camshafts off I can undo four bolts that allow me to remove the lower camshaft holder and then I can get to the tappets. I don't have to take the head off. Seems a sensible thing to do if I have already got the rocker cover off. An inspection of the tappets will answer the question good or bad won't it.
As I said earlier, when I checked the positioning of the chain and cam gears prior to taking the old chain off, I did notice that the intake cam gear was slightly forward of the position it states in the manual. When I put it all back together I positioned it as per the manual. I wonder if that could be the problem.
I will probably start doing it next Wed so will let you know how I get on but if you can think of anything else would appreciate you letting me know
Honestly, I have had so many problems with this car since buying it at a year old. Suspension, Various engine problems, Fuel pump, Alternator, Steering pipes, reversing sensors, 2 new injectors, brake master cylinder. The list goes on.