So today, I was just having fun with my friend, and we sorta solved a argument.

Story: He has a 350z(auto) and always says that he will squat me anytime etc and that MINIs are for old people, so here is it:


BTW in the end i brake hard since the road was merging into 1 lane.





Now for the thing that made my heard sink..

I heard this knocking/ rattling noise in the passenger side of the engine (accessory side) at idle
I'm worried it might be a bearing, or the supercharger going bad.
Info about my car: Bought 1 month ago, installed a pulley, changed supercharger oil ( was full when drained ) and changed the belt. I didnt change the tensioner/ or the crank pulley.
The pulley was installed on the supercharger by DT, but i diyed the rest.

this noise is barely there, i doubt any microphone would pick it up as i could only hear it if i focused on it.

Sorry for the long read, as i'm really paranoid. Do you guys think it's more likely to be just a crank pulley or a tensioner?

 

tensioner if you havent done anything to it.... but it could be the crank too...

might as wlel change both while your in there

 

As of now, i don't have the time or money to do them, unless they might cause the engine to fail or something.. Is that possible with either ones? Also timing chain tensioner is a possibility based on other threads?

 

Yes, 1st suspect would be timing chain tensioner, will sound like a diesel @ idle. Less than $100 to do yourself.

 

Unfortunately, it doesn't sound like that. It sounds like a on/off rod knock altho very different frequency and very very quiet.

Anyways, i'll get a stethoscope and try to see where it's coming from.