Friends VS Metal Scraping Noise over 3000RPM?

[hsv91ss]

Hey guys

This post is for a Mate his Mum has a VS II Ecotec like me however it makes a Loud Metal Scraping Metal noise @3000rpm it is slightly noticable but above 4000 it is very loud, however there is no decrease in perfomance, or hesitations in the Engine, my guess is Bearrings and suggested trying thicker oil.

What do you guys think?

Thanks

[Locksmiff]

IF it was engine bearings it wouldn't be a scrapping sound it would be a more slapping sound.

[hsv91ss]

he said it is more like a grinding then anything, I have not heard the car since the problem developed.

[bandit10]

Torque converter cover rubbing on torque converter?? Or something got in between cover and TC??

[woteva]

Is the noise heard when reving the engine stationary or driving along ??

[BoNeZ-01]

Could be something to do with one of the pulley's, but hard to say without hearing it, or to narrow it down without more info..

[RX25SE]

^^^^
May be drop the belt off and run the engine?

[BoNeZ-01]

Will an Ecotec start and run without a belt? I always assumed it would need the alternator hooked up to keep it running..

[moff_man]

thats what the battery is for. run it too long with no belt and the battery will die and cut out, but for a few secconds or so shuold be fine

[maldotcom2]

You're also not running the water pump so be careful there.

[BoNeZ-01]

That's true too, but hopefully it wouldn't take very long, a few seconds or more as moff_man said, to pinpoint or eliminate the pulleys as the source of the scraping noise.

[hsv91ss]

thanks for the info I will pass it on, I also suggested a pulley to him but he is not very mechanical minded so I will go down there in a few days and have a look myself armed with the info from you guys.

Thanks for the help

[arit]

Did you get to the bottom of the noise?

[nathanVY]

Definitely check all your idler pulleys, take the engine belt of a spin each one individually and check for noise. I had the same problem, all my idler pulleys were shot just replace em, 30 bucks each for better pulleys than the genuine ones.

[VT-565]

Definitely check all your idler pulleys, take the engine belt of a spin each one individually and check for noise. I had the same problem, all my idler pulleys were shot just replace em, 30 bucks each for better pulleys than the genuine ones.

I reckon they might have done something before now ha ha ha