hi all , ive just got a few questions to what this may be or anything i can do .

all it is when the car starts 1st thing in the morning OR when its been sat around for a few hrs it starts up perfect and quiet. but if i do a run to work 25 miles , pull up into my space to park, i can hear what only sounds like a tinny sound. it doesn effect performance in anyway , its had a complete service with brand new oil been put through 2/3 times ( my mate runs a garage so we made sure it was lovely and clean ) . anyway im thinking it could be the tensinor not pulling the chain as tight as it should ?

anyone else had this issue.

thanks in advance