on July 10, 2011, 6:56 pm, in reply to "Re: Renault Clio 1.5 missfire after cambelt failure"
It should be quite straight forward to evaluate & assess the orientation of the cam lobes for your questionable cylinder, by comparing them to the lobes on the cylinders that are performing correctly.
"""I'm sure all is OK with injectors"""
Have you tested & confirmed this, or is it just an assumption?
The cam keyway thing is a known issue after a belt failure, but would effect all cylinders equally I suspect.
It is much more likely that you have an injector problem I think.
HTH
Dave