Right, the car recently had a timing belt change, ran ok then one day i turned off the ignition.
the car then wouldnt re start.
I checked everything then found the cam pulley bolt loose, checked compression, re timed everything and all was spot on.
The car now wont idle smoothly its up and down and sounds like its running on 3 cyclinders.
With the car idling (albeit roughly) when i pull the plug caps individually the tickover doesnt seem to change much if at all on all cylinders!
it should obviously change dramatically the instant it is removed....shouldnt it?
Anyway has anyone else had something similar happen or can offer ANY ideas on things i could check for?

 

Yes, it would do, so you are running on three cylinders, assuming it's not ignition, plugs related etc then it may be a compression problem on that cylinder, i.e. bent valves.

However seen as you have checked the compression, hopefully it will be the former.

An easy test is to swap the plug with another cylinders and see if the problem moves to that cylinder, if not it may be lead related etc.

Martin