Menu
What's new
By:
Advanced search...

Diesel engine 'whine'

G

grant_GTE

Members
Messages
23
Reaction score
1
Location
Nottingham
Car
Gen 7 Accord 2.2
Hi all,

I'm trying to diagnose / treat a fault I've discovered with my i-CDTI engine.

When revving above 1500 rpm, I've noticed a whining noise coming from the driver's side of the engine.

The noise is not related to the clutch/gearbox; nor is it it dependant on turbo pressure.

I've read articles / seen videos that say the 2.2 as 'normal' to make this noise. I however, think it sounds like my mum's old Renault 19!

Anyone else come across this, and if so did you manage to stop the noise?

Many thanks.

- Grant
 
if you could post a video it would be better
 
IS THIS EVIDENT WHEN COLD? if so no worries does it go away when warmed up? I think you will find they all make this noise, least mine did.
 
Hi,

It's evident at all temperatures. The more I rev it the more it sounds like a sewing machine! (or a washing machine on spin-dry)

If it's common on all the diesels; does this mean that it can't be 'fixed' as such?

Thanks for the replies; I'll try and get a video up later.

- Grant
 
only got the whistle when cold and that is the turbo, sounds like you have something else amiss?

One thing that does get noisy is the generator specially if you are still fitted with long drive belt it puts too much strain on the pulley and wears the bearing out.
 
Hi again,

Thanks for the replys; I've taken a video but not sure how to upload it?

I've done a bit of research and I've definately still got the 'long' belt ffitted; there's an idler pulley right next to the alternator :)

- Grant
 
The very first couple of seconds sounds like a bird tweeting? I would put down to the drive belt/pulleys, try upload again but no revving just let it tick over, check it out by removing belt?

There is an excellent "sticky" on 7th gen DIY
 
Hi,

Thanks for the reply. Yes, the first few seconds is a bird tweeting :)

There's no 'off' noises when idling; so no need to post another vid of this.

If it's the pulleys; then is it safe to ***ume the 'old' belt setup has worn down the alternator bearings? (I'll be doing the shorter belt mod soon; so I'll run again with the belt off)

- Grant
 
sounds as I suspect, I cured mine by going short on the belt and replacing the alternator, There is a firm ad on ebay, in Oldham about £130 no exchange, or you may get away by renewing the clutch pulley, but the belt option is best for long life. Good luck. READ THE STICKY.

http://www.ebay.co.uk/itm/HONDA-ACCORD-MK7-CIVIC-CR-V-CRV-2-2-CTDi-TD-DIESEL-05-09-BRAND-NEW-ALTERNATOR/301215120015?_trksid=p2047675.c100005.m1851&_trkparms=aid%3D222007%26algo%3DSIC.MBE%26ao%3D1%26asc%3D33840%26meid%3D22fb7ee18b384f7fbc6440a3582ff284%26pid%3D100005%26rk%3D3%26rkt%3D6%26mehot%3Dag%26sd%3D121762616310
 
Thanks, just read the how-to and ordered a short belt.

I suppose just having a shorter run will produce less resonance...

- Grant
 
I started to get a whining noise from my alternator pulley. It wasn't as loud as that nor was there no tweety pie noises. You can have just an alternator pulley changed for a cheap option. I had my alternator changed and returned old one back to them to get £20 back
 
Thanks,

So general consensus is that it's the alternator bearing collapsing due to excess stress on the pulley, caused by load of the long belt setup.

Is the safest bet to have a recon alternator fitted when I do the belt, or is there a cheaper fix option?

- Grant
 
If when the belt is off the clutch pulley it should be free to turn when the armature is locked with a screwdriver iirc, if not then it is "cattled" and the very least fix will be a new clutch pulley but if it were mine I would renew the lot. Someone on here will be along to put me straight
 
Sounds like I'll just get a re-con alternator on a p/x with my old one then; IF it turns out to be the root cause of the whining problem. (Seems like much less of a faff)

I'll post once I've swapped the belt and alternator.

- Grant
 
Hi all,

Definately traced to the serpentine belt; just have to identify which pulley it is now :)

- Grant
 
Ok, Ok, point taken! lol.

One final question then; any ideas on manufaturing a tensioner tool to release the tensioner? I ain't splashing out £50 on a tool I'm going to use once; when I've got the short belt for £15 :)

- Grant
 
I used a 14mm ring spanner with a length of bar slipped over the top.
 
UPDATE:

New alternator and shorter belt fitted; whine still persists :(

Clicking alternator bearing cured though :)

Any other ideas as to what usually fails next? Tensioner pulley maybe...

- Grant
 
Not sure if its related but I have a whine which is always there b.w 2K and above. IMO it is turbo whine and I hear it every time when I accelerate.
Do you get it during acceleration?
 
You must log in or register to reply here.
Top