Ticking noise from engine....
- Thread starter M@r]{
- Start date
pvr said:
I've been reading about that but people report vanos problems as being most noticeable at tick over. I don't think mine is. I can be driving along and its fine, put my for down and I can hear a faint ticking. Its not fast enough to be tappets / valve related
The cams are fairly high lift and have an "aggressive" shape to the lobes which leads to the valve gear being more tappety than you might expect. I find this to be most noticable at around 2-3000 rpm on the over run, especially with the driver's side window open and a hard surface (a wall, stationary vehicles, etc) adajcent to the offside of the car. I'm not sure if this the same thing you are describing, try what I've described and see if it sounds like it. At higher rpms, induction and exhaust noise drown out any ticking.
edit: you posted the above whilst I was posting!
edit: you posted the above whilst I was posting!
Could be 'pinking' a light tinkling sound when you put your foot down in a high gear at low revs or up hill? Caused by mild pre-ignition of the fuel mix, not really a deadly problem if it's slight and relatively infrequent. Try higher octane super unleaded 97-99 RON like Shell V Power which should reduce pinking if that's the issue.
I don't think the M engines have a DISA. :|
I don't notice any strange noises from my engine that I wouldn't expect for the design of the engine + the vanos etc. Until you compare it with another or get someone else to listen, its a bit hard to say.
Put radio volume higher to fix maybe :roll:
I don't notice any strange noises from my engine that I wouldn't expect for the design of the engine + the vanos etc. Until you compare it with another or get someone else to listen, its a bit hard to say.
Put radio volume higher to fix maybe :roll:
