Most annoying ticking noise

[walrus50]

Hey guys, will attach videos of my 2010 thai D40 yd25 making a horrible ticking noise. I'm thinking injectors but perhaps I'm wrong?
Had a noisy idler pulley that ticked and I replaced that thinking it was the only issue but alas no. Any thoughts/help would be appreciated before it goes to the dump, I mean shop.
Thanks in advance

 

[walrus50]

Hey guys, will attach videos of my 2010 thai D40 yd25 making a horrible ticking noise. I'm thinking injectors but perhaps I'm wrong?
Had a noisy idler pulley that ticked and I replaced that thinking it was the only issue but alas no. Any thoughts/help would be appreciated before it goes to the dump, I mean shop.
Thanks in advance
View attachment 37447
View attachment 37448

Bang noise in 1st video is not the ute

 

[Old.Tony]

I'd put a mechanic's stethoscope to the timing chain housing and listen in there. It could be the chains slapping on the tensioners, which isn't a great thing as it stretches the chain and causes chain and sprocket damage (and chain failure = engine failure).

 

[walrus50]

Cheers Old Tony, never struck it in a vehicle before so will def try that as better safe than sorry.

 

[walrus50]

Well it's definitely not the chains, had that checked today. Will be delving into it a bit deeper over next week or so. Seems to be coming from injector area towards back of engine. Unfortunately I've only had it a few months so don't know it's history.
It's not high k's at 160 thou so I may try putting an injector cleaner through to see if that makes any difference

 

[Fivefivezero]

Could be your viscous fan hub.

mine soinded similar til i got it replaced.

 

[walrus50]

Could be your viscous fan hub.

mine soinded similar til i got it replaced.

Thanks mate, I'll look into that

 

[walrus50]

Just thought I'd update you all
I removed the injectors and had them tested (results were good) and then decided I'd fit a double row timing chain too. Put it back together and noise was still there. Have narrowed it down to a valve as realised it was popping in airbox too, so currently stripping head off to sort.
Bit of a mission but has been great as means I can do everything else at same time. I had blocked EGR but will do a complete delete while everything is apart
It's certainly the worst vehicle I've worked on with access to everything but will be a trustworthy workhorse when I'm done- fingers crossed