it is coming from around the number one cylinder coil pak area
Is this not the same area as the camshaft drive chain, which also creates noise until it is warmed up.
thanks for your reply ]
yeah that side where the oil cap is and timing chain but the cold noise is a tap and not a chain noise
the noise doesnt start right away, maybe after a couple of mins driving or longer at tickover. it does sound like the lobe going round hitting the rocker arm and then goes completely away when warm, then the warm noise starts at the coil pack area which sounds like the other side of the rocker arm very quietly tapping the top of the valve with a gap still too big when hot just on one cylinder as the other three are as i would expect them to sound
im just a bit worried about the lobe being bashed, but if it is set at the factory it should be perfect and does sound ok when warm
i have had the warm noise since the car was new, but only notice the cold noise a week after the service in september when the weather started to go cold, i never owned the car last winter just from march 2019, it was 6 months old but with 16 miles as a pre reg car
the reason why im hessitant to get them to do something is that it will be an overnight and my dealer is 50 miles away and i have heared stories of it sounding worse after adjustment
to be honest the noise might have always been there but goes away in hotter weather quicker