Sounds like tappets to me, but im new to these engines.

Ive had a look on youtube, and i can only fear the worst, its similar to all the engne knocks on there.

 

Someone please tell me its not.

View My Video

 

This is a cold start by the way and it was not doing it yesterday.

And I barely drive it hard as i cant afford the petrol.

Silly question...... have you got the correct oil level?

 

Al.

Its very hard to diagnose engine noises over the internet, sound clips tend to distort.

 

But sticking lifters tend to give a light ticking/tapping noise that can be heard from the top end. The VVT springs are also known to give a rattle noise.

 

Whereas bottom end bearing issues are more of a deeper/hollow knocking sound. Its typical for the noise to be heard in teh 2500rpm region when there is a problem with them.

Ive just checked the oil, thats nice and high on the stick.

 

I must admit it doesnt sound like its bottom end related, but as you said, it get distorted over the net and becomes hard to tell the difference.

Its coming from behind the timing case.

sounds like its missing aswell?

The plugs on the injectors are all broken, they do just pull off, im not happy with that. But its running on all cylinders

Mine sounded like a bag of spanners when it went down on on a cly

and that was due to injector connectors

Ive looked at all the connections, there all green and not tight, i dont think this is the main problem, but i bet it aint helping.

Are these a nissan part? ive found some on american ebay at $20 for 3, they need soldering in though

ive been told theirs a trader on here that sells them?

The noise seems to have gone now, i guess ill just have to keep an eye on it.

Could it be bearing related?

My dad had a little listen and he said he thought it sounded like a belt, or a tensioner. He even suggested that it could be an air flap somewhere. His subaru has a tumble flap to make the intake air more turbulent, does this car have anything like that?

This noise has been coming and going now, makes no difference to the performance as far as i can see, but its worrying me.

My last car did this, it came and went, did no damage, did not change the performance,

Turned out in the end to be crud clogging up the oil pump and it wasnt pumping oil to the top tappets.

Is this likely?

if its sticky lifters its not going to kill the engine imminently, sounds like lifters if its coming and going, big ends tend to go and then get worse, you can get additive to try clean them but I had to remove all mine and strip them down a few were beyond refurb

I dont think its anything serious, but sticky lifters sounds like a likely candidate, also sounds like a hell of a chore to to, whats that, new seals and head gaskets, then all the parts i might need refurbed?

No need to go as far as the head gasket,

 

Paul

Oh yeah of course. I think i need someone who knows to have a lil listen till i start dismantling. :D Cheers guys