... So the dreaded timing chain rattle on start up has started ... but with a twist....
So a bit of background info first, it's a 2.0 N42 2001 reg just ticked over 86k. I was always aware of the dreaded chain rattle with these engines before I bought it, so I specifically made sure I bought one which did not make the noise, and I did... even though at the time the car still had the older type tensioner.
First thing I did to the car was change the oil, with recommended 0W30 fully synthetic... Always been fine, no noise.
Then a bit later I fitted the uprated tensioner to be on the safe side... Always been fine, no noise.
Then one day about a month ago it did the noise for the first time... For days after that it didn't happen again so I put it down as a one off and intended to keep a listen out for it.
Since then it has made the noise about 6 or 7 times more. HOWEVER!!! Cutting a long story short I have realised that the noise only happens after the car has been driven on the motorway, I can guarantee the next morning it will make this noise, and sure enough every time so far it has.
So, any ideas on this? I appreciate anything you have. Thanks