Engine noise

[1961ed1961]

Thanks for the replies, the cambelt and water pump was changed 4 yrs ago along with a full service, it is serviced regularly, All seams well under the bonnet no obvious damage or leaks of any sort. Mike b as a point with the belt tensioner coming loose I will look at that the first opportunity I get, thanks also cancunia will check the fuel pump, it's twenty years old with 102,000 miles genuine on it but we've owned it from new and this is the first time it's broke down, it's been 100 percent reliable and I feel Citroen 's best small van. Thanks again you guys for your help