2000 GTB with weird engine noise

[viperidae]

between about 1700 and 2100 rpm my engine makes bit of a whirring noise. I'm pretty sure it isn't the "sti" exhaust as this resonates between about 1000 and 1300.

Its like its happening just before the point when the primary starts spooling up. If I'm going up a hill in 3rd and the revs stay the same, the noise stays as well.

The weird thing is my old honda sounded similar to this as well

Any ideas?

[chrisjunkie]

Does it sound like metal on metal?

[Guest]

Yea I've heard this on mine too and got it checked out. Nothing to worry about I've been told. Though mine is like a mild wooshy sound rather than a whine or whirr

[viperidae]

Definitely not metal on metal

[Guest the_return_of_the_jedi]

have you recently put a pod filter in?

is it like a water noise?

[Guest]

 the_return_of_the_jedi said:

have you recently put a pod filter in?

is it like a water noise?

ive got the water noise is it a bad noise?

[viperidae]

No pod filter, doesn't sound like water either.

Only non-standard thing on my car is an after market rear muffler and an engine grounding kit, but they were put on before it was imported

[NotAWhiteGTB]

Does it happen only under load, or does it happen when it is stationary and you rev it?

Also, is a very loud noise or just a faint one?

One thing that i know that makes a very noticable whirring noise, without hearing it, it sounds like something running off your auxillary belt has dropped a bearing, and the most common for that is the power steering pump. If your power steering pump is dieing it sounds like a cross to a straight cut gearset whine and a supercharger drivebelt whine.

The best way to figure this out properly, would be to take it into a decent service workshop and they should have a stethoscope, similar to what doctors use but it has a steel probe on the end that you can put on different mechanical components to figure out where the origin of a noise is. They should do this free of charge as it is a simple task that takes less than 5 minutes.

[Volcanix]

weee i have that noise(i knew about it after i got my cambelt done)

its getting slowly louder....

[viperidae]

only happens under load and when its happening backing off the throttle makes it quiet so i don't think it would be something on the fan belts.

it starts disppearing when the primary turbo starts spooling

[Guest boostin]

How loud is it? Can you do a recording?

[Sean]

Does it sound like water? I had this in a couple of BG's. Turns out it was just my heating system needing a bleed. nothing major at all

[matariki_gt]

same thing happend to mine when i put my motor in, turned out i tightend the powersteering pump belt too much, so i loosened it and problem solved ;D

[funkytown]

 matariki_gt said:

same thing happend to mine when i put my motor in, turned out i tightend the powersteering pump belt too much, so i loosened it and problem solved ;D

interesting.. sounds like i have the same also after all the stuffing round with p/s & alternator in the manifold flip. will lossen the belt off a touch and see how we go.

sounds like a straight gear set whirrr.

also my g/b sounds different .. using a 6mt with the blue shockproof gearoil - so suspect some of the whir is from that.