I sold an engine to a friend for his caddy and gave him help setting it up.
It knocks quite heavily
I changed the pump timing and still the knock remained, I even swung the pump across it's timing limits while the engine was running - no real change.
He swapped the injectors for known good ones - still knocking.
Fearing the worst I missed out on Sunday lie in and was down at his garage early, I pulled the head - very clean, slight carbon build up on number 3 but as expected.
Now pulled the sump, nothing in the oil, dropped the connecting rod caps and pulled the pistons out to check
It's not lifters as it's not 'that' type of ticky noise, it's more clack.
Any ideas people? It starts and runs fine. Just noisy.
It can only be pump now surely?