flanders

Swapping injectors sounds like an easy and good idea.
Oil pressure would also be interesting to know.

Jirka

I have same noise. i work on engine new timing chain, tct, guides, new oil pump, new rod bearings, new oil pump chain, oil pump guides, oil pum tensioner, new retainers, valve clearence minimum spec. New Lmas. New all bearings belt pulley, new crankshaft pulley, new oil jets boltsand it still clicks………… f20c2 2002 144 000 km,
now i change oil 5w40 to 5w40 and do it more horrible noise….

windhund116

So, you went from 5W-30 to 5W-40? And the engine is still noisy, after the oil change and all the replaced parts?

Can you post a video of the engine idling?

Thanks!

Jirka

no with 5w30 more noisy! Now change 5w40 mpm oil - 5w40 c3 champion oil and more noisy…. Next week il try 10w40 full synt…

Jirka

https://youtube.com/shorts/Aldw5a1QcTY?feature=share

windhund116

How does the engine sound when you rev it a little and let it settle back to idle?

vanwalsum

Had the same sound in my 2001 engine. Happened after driving 20 mins at full speed. First i thought it sounds like rod bearings. So changed them for new ones and nothing changed.

https://youtube.com/shorts/mU5O98G2NWg?feature=share

I think it was piston slap, maybe caused through bad lubrication. Happened all after an engine flush a week or 2 before the speedy run.

Ended with changing the engine for a 2005 example.

windhund116

Sometimes, revving the engine will demo the sound. LIke this video. Go to 1:30.

torrbi

The sound drowns out around 1000rpm and cannot be heard. It only comes when its in idle around 700rpms. And its intermittent too!

I can only think about detonation by a injector, or a piston wrist pin.

windhund116

Noise more common when engine is cold or hot?