Hello, New here

Heres my 300tdi




After a bit of help:

Iv got a knocking noise from the front top end of the engine (300tdi)
Starts about 1500rpm upwards
Iv checked the rocker clearances - all ok
Pretty sure its not the vacuum or lift pump
Changed the oil
Cant see any leaks from any gaskets
It happens on acceleration and on overrun, and with the car stationary or moving

Im going to put some injector cleaner in it for good measure, see if that does anything!

Any ideas on what it could be, possibly timing advanced or retarded?

Is it a knock or more of a tick? Is it from the injection side of the engine or the exhaust? From the injection side i would suspect a sticking injector or a worn copper washer that lies just beneath the injectors. If it's on the exhaust side, I would suspect a leaking manifold gasket. Both jobs are simple and cheap to do. I would start off with them then investigate further if need be.

Yes its the injector side, and is more of a tick, however its a heavy tick. or even a light knock! haha

Ill have a look into the injector washers and see where it goes from there!

Thanks!