Timing chain rattle

[aneng]

Hi. My 2003 Connect has started making an awful rattle on startup from cold. It's got the 80ps 1.8 TDDI Duratorque engine and has the belt replaced last year. I'm pretty sure this has the belt AND chain. The rattle goes fairly soon, especially if you rev it. I'm suspecting that the oil isn't getting to the tensioner quickly - I'm sure I saw a video on that. I'm wondering whether an oil change might help (it's due one) and if not, how big a job it is to replace the chain?

[metalworker0]

Do you have the correct grade of oil in it : - 5w-30

if yes

Then still do an oil change


They reckon it should be changed every 6000 miles even if you use fully synthetic .

if you've neglected these changes ..you may want to do a double oil change ..first with cheap oil 10w40 ............run for 100 gentle miles (because it does not really protect the turbo)

Drop it out and put in fully synthetic 5w/30 with a new oil filter

Diesels make the oil dirty quicker ..and deposit sludge ...this sludge can gum things up like the one way valve in tensioners and and anti drain back valves in the lubrication system.