Help identify engine rattle, w115

[quantumspores]

Hey Folks,


I'm looking at a w115 from out of state, i'm wondering if anyone has any thoughts on what this engine rattle might be? It's been too long for me to tell if this is a normal OM616 diesel noise or something else?


https://www.youtube.com/watch?v=2ofs2xbyiMg


Thanks!

[imgolden]

Cool car. Is that a timing chain slapping around possibly? Since it isn't consistent.

[maclaveau]

Did the sound change once the engine was warmed up?

[MB140300SD]

Just sounds like injectors nailing to me.

[resago2000]

if you blip the throttle and hear a slap, its the chain, otherwise sounds like nailing. I wouldn't run that engine long without first rebuilding the injectors.

[quantumspores]

Turns out the mechanical cooling fan was the culprit.

[imgolden]

Nice! That's one of the best things it could've been. Enjoy the car