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1

Omega General Help / Re: Diff Whine

« on: 08 February 2015, 22:09:00 »

The noise doesn't start until about 33mph and there aren't many curves around here, sharp enough to remove the sound, that I can take at a high enough speed but I have noticed that in the process of taking a sharpish left curve at speed the sound stops briefly until I straighten again.
 

2

Omega General Help / Re: Diff Whine

« on: 08 February 2015, 18:16:13 »

Thanks Nick, but as I've said above there's plenty of oil left in the diff and its quite clean. So, my question was, can a dodgy diff pinion oil seal generate significant noise in the cabin or is the sound most likely because the diff is also knackered?

3

Omega General Help / Re: Diff Whine

« on: 08 February 2015, 17:35:28 »

Does a dodgy Diff Pinion Oil seal generate noise like I have described? Is it possible/likely that the diff itself is OK?

4

Omega General Help / Re: Diff Whine

« on: 08 February 2015, 14:03:28 »

Just read Diff Pinion Oil Seal Change in Maintenance - its beyond me I think

5

Omega General Help / Re: Diff Whine

« on: 08 February 2015, 13:59:28 »

Finally got round to changing the diff oil (i'm not in the best of health). When I got underneath I noticed that there is oil covering the forward end of the diff.

I assume that there is some kind of oil seal  between the diff and the prop shaft and that it has failed. Still plenty of oil in the diff as is came running out when I loosened the filler plug, and it looked fairly clean. Diff is making a loud humming noise over 30 miles an hour, sound stops briefly on a left hand bend.

I am thinking of scrapping the car in view of its age and some other faults but I wonder if anyone can give me an idea of the labour costs a garage might charge to change the diff for a secondhand one (£50 to £80 on Fleabay), which presumably would also require new oil seals in the process.

Thanks for any help.

6

Car Parts, bits For Sale & Wanted / Wanted. Drivers Side - Small Glovebox Lid

« on: 29 June 2014, 21:52:05 »

2.5V6 Elite Facelift 2000W
 
I am in need of a LIGHT GREY drivers side small glovebox lid.

Just to be clear, it must be in good condition with opening mechanism and handle in order.

Please pm me if you can help.

Thanks in advance.

 

7

Omega General Help / Re: Diff Whine

« on: 14 June 2014, 18:51:39 »

Been sick for a while hence the delay in reporting back.

Took the car to my friendly tyre centre to have the tyres examined and a front/rear swap.

They had a good look and pointed out that the rear tyres, although a budget brand,are practically new and that the fronts are more worn than the back with evidence of under-inflation wear to the outer edges. They said they thought it very unlikely that the rear tyres were the cause of my hum and that placing the, more worn out, front tyres on the back would probably lead to noise of its own. They were happy to swap them round for me but recommended I leave them where they are, which I did.

Looks like the oil change next. I'll report the outcome in due course just in case anyone else has a similar problem and is interested to know if it helps.

8

Omega General Help / Re: Diff Whine

« on: 01 June 2014, 20:58:57 »

Whine coming from the rear? Check the obvious.

If there is anything 'obvious' that has not already been mentioned in this thread please feel free to enlighten us, thanks.

9

Omega General Help / Re: Diff Whine

« on: 01 June 2014, 17:01:19 »

Good idea. I'll do that.

10

Omega General Help / Re: Diff Whine

« on: 31 May 2014, 20:18:31 »

  Could it be a tyre related problem?
Keith B

The tyres are in good condition and although they are cheap tyres there is no reason to suspect they are the cause of the noise which started suddenly, like flicking a switch. I drove two miles to drop off my daughter, on the way there was no hum, I turned around to come home and the hum began on the return journey.

11

Omega General Help / Re: Diff Whine

« on: 29 May 2014, 18:28:47 »

The hum starts at about 30mph, it is not loud at first, people who don't know what the car should sound like, have trouble hearing it. It increases in pitch and volume with acceleration. It is still present when coasting in neutral. It is no different when cornering or when accelerating rapidly (I don't normally spank her, she's getting old, but today I tried it  - and she seemed to enjoy it).

The car passed its MOT yesterday and the garage say the wheel bearings are OK.

Since the sound began the rear brakes have been overhauled (new Shoes, Pads, Discs, springs, fitting kit), No change to the hum but the brake rattling and clonking has gone. Lovely.

It looks like the first step is to try a diff oil change.

The maintenance guide gives two grades of oil depending on your diff type but I understand that you can't tell what type of diff you have (LSD or not) until you take the cover off, if that is true, is there a type of oil that will suit both so I can buy it in advance?

12

Omega General Help / Re: Diff Whine

« on: 28 May 2014, 21:54:32 »

Thanks Chris, you seem to be suggesting that this hum is unlikely to be coming from the diff?

13

Omega General Help / Re: Diff Whine

« on: 28 May 2014, 20:39:00 »

Actually its more of a hum than a whine

14

Omega General Help / Diff Whine

« on: 28 May 2014, 17:13:44 »

I have a whine that must be coming from the diff. Its not a loud noise but it is annoying. The sound began suddenly from nothing a couple of weeks ago it starts at about 30/35 mph, below that speed there is nothing.

Tyres, brakes and wheel bearings all OK.

Question: Is this something that might be eliminated with a simple diff oil change or am I going to have to source a replacement diff?

15

Omega General Help / Re: Rear screen lower rubber trim

« on: 04 May 2014, 15:18:59 »

What type of Sikaflex?