i hade my cambelt done a few months back (ecotec 2.2) had to call the RAC last night, strange noise. he says it's loose rubbing on case & needs doing. he also said charvills should have told me to take it back at a certain date or they should have reminded me of thate soon after. is this true, or is it the retentioner going down? (apparently they were not replaced) if just needs retentioning, will i have to pay? or is it already paid for? confused mike