subaruturbo_18

Just got back home, gave the car some hard driving on the way home, and i have noticed a whining noise.

At first i thought that it was the gearbox, but i have noticed its not, its the engine as the whine is relevant to the engine revs. im hopefully going to do an oil change soon, but any other ideas on what else this could be?


Any help will be appreciated.

Cheers

chocolate_o_brian

iTrader: (22)

Maybe belt pulleys a little dry? I used to give mine a spray of WD40 every so often.

Besides gearbox, thats all I can think of.

stolen_monkey

Mine does it.
Changed the oil (not because of the noise, but because it needed doing!) and it made no odds, so rule that out.
Having said that, I never checked the diff oil...

I like the whining noise though, coupled with the turbo and the zorst, so not overly bothered until something goes bang. pulley and belt are D40'd and everything looks in order.

Ray T

Have a close listen to the alternator, use the screwdriver stethoscope test,

the whine was related to speed

on mine it was one of the bearings.


Maybe CoB could do a search of my old posts, I did put up the part number for a replacement bearing from RS components, but I can not search my own posts!!

chocolate_o_brian

iTrader: (22)

See what I can do...

"Got it apart and extracted the bearing, and seems my guess was right it's definitly got a couple of flat spots, so just ordered a replacement from RS part no for ref is 442-0076 bearing physical size is 40mm o/d 17mm i/d 12mm thick with synthetic rubber seals, price £4.39

bearing part ref is 6203-2RS1


ray t"

subaruturbo_18

cheers lads, i shall go have a liston now to see what i can work out.


Ray T, the whine is relevant to engine speed yes.. But wat is the screwdriver stethoscope test??

chocolate_o_brian

iTrader: (22)

Thats an easy one. Basically to try diagnise problems, you pop one end of the screwdriver on possible problem, and other end to your ear. Works like a stethoscope. I diagnosed noisy tappets this way, by using this method to rule out sticking injectors. Try it and you'll know what we mean

subaruturbo_18

ah clever i shall get on it after i've nipped out to the bank


CoB and Ray, i appreciate your help

chocolate_o_brian

iTrader: (22)

Don't worry about it, it's a car forum, it's what we do (and I don't even own a Scoob )

subaruturbo_18

Right i've had a little look, and a listen. the sound is harder to hear when hanging your head over the engine bay, but it does seem to be coming from the alternator. my dad has suggested to spray wd40 on the alternator while the engine is running?


Does that sound correct?

Not meaning to doubt my dads abilities but just thought i may aswell be extra cautious.

Ray T

Try both ends of the alternator, there should be a difference in the "sound" through the screwdriver.

my car is a MY00 last of the classics, so don't know if they have different alternators on other years.

The wd 40 might just clear out the last of the grease from the bearing and maybe make it worse!

merlin24

iTrader: (1)

Whip the drive belt off and see if the noise stops.
While the belt is off,you can spin the alternator and PAS pump pulleys to if there is any noise from the bearings.

Mick

Peanuts

iTrader: (15)

take the metal end of the screwdriver out your ear FFS

oadamo

iTrader: (1)

ive had a whine on mine for a few days i tought it was the alternator but its the power steering pump my level is low so iam gonna top it up to see if it stops if not the pumps gone.
adam