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1

Omega General Help / Re: Electrical fault

« on: 11 November 2006, 12:36:46 »

Just been out in the car. Like a dream!

Traction control light doesn't come on & temp gauge is as it should be.

Now I can just enjoy driving the nicest car on the road.

Thanks once again to everyone, this is the place, Red

2

Omega General Help / Re: Electrical fault

« on: 11 November 2006, 00:43:41 »

Hi All,

Good news, the voltage witch is dead! I hope f*ckin hope.

This didn't go quite the the way I had planned, but what does.

I had hoped to get to the weekend and then I would fix the bad earths myself.

Unfortunatley going back to work yesterday lunch time my car came to a hault in a totally undignified way. The car cut out in the middle of the works car park blocking alot of cars in, as Omega's are not the smallest car.

Anyway I had no choice but to go to my boss and explain that I needed to get the car home.

So luckily for me my partner Maria was off work yesterday, so I rang her and asked her to come and jump start my car. So we got the car home. Even though I was certain what the problem was I did not have the time to fix it. So I asked Maria to take it to a auto electrician today and not suprisingly there were bad earths in the car which they fixed. Costing around £50 I am happy. It is a shame I couldn't do it myself but that's life.

Cheers for your help and I learned a lot from this, next time I while get to do the job myself.

Thanks, Red.

3

Omega General Help / Re: Electrical fault

« on: 07 November 2006, 15:14:28 »

Hi Mark,

Will check the connection for the engine. With regards to the alternator I found your tutorial over the weekend but my alternator is different in that the contacts on the alternator you illustrated are not the same as mine. I posted the images here:http://www.omegaowners.com/forum/YaBB.pl?num=1162051038/15

Cheers, Red.

4

Omega General Help / Re: Electrical fault

« on: 07 November 2006, 12:29:37 »

Many thanks for everyone who has helped with this issue!

I will take laidback66's advice and check the main earths at the weekend and hopefully have some good news to give you.

Cheers, Red.

5

Omega General Help / Re: Electrical fault

« on: 06 November 2006, 18:01:36 »

Hi,

I have just done the jump lead test and does appear that the car seems to have a bad earth.

At tick over the voltage reading is normally around 12.5 volts and at 2,500 revs just under 13 volts.

With the jump lead at tick over just over 13 volts and at 2,500 revs approximately just over 13.5 volts.

So it is still a little lower than the 14.4 volts that  laidback66 recommended. Could it be a combination of a dodgy alternator and a bad earth? What I was going to do at the weekend is go to Wigan Alternators and ask them to test it before I went ahead and bought it!

Thing is I have not got a clue as to how I am going to find the faulty connection and then fix it.

Please help, Red.

6

Omega General Help / Re: Electrical fault

« on: 05 November 2006, 17:27:22 »

Hi,

I have put the alternator back now.

Given the information in the post how sure can I be that this fault is being caused by the alternator?

I am only asking this because I dont want to get a reconditioned alternator only to find that is was something else.

If I can be fairly sure it is the alternator In will change it next weekend, if however I cannot be that sure I reckon it would be more cost effective to ask a mechanic to look at it first.

Cheers, Red.

7

Omega General Help / Re: Electrical fault

« on: 05 November 2006, 12:35:17 »

Hi,

Here they are:

8

Omega General Help / Re: Electrical fault

« on: 05 November 2006, 10:49:27 »

Hi All,

Just took the alternator off, but it doesn't look quite the same as the one shown in this thread: http://www.omegaowners.com/forum/YaBB.pl?num=1153772945

I cannot see any contacts on mine to clean.

I have some pictures I have taken but appears I don't have permission to attach them in this forum I will ask in the meantime and hopefully follow up with the pictures later.

 If after looking at the pictures you can advise any course of action I can do this before I put the alternator back again. I wouldn't want to take this out any more times than is necessay.

Thanks, Red.

9

Omega General Help / Re: Electrical fault

« on: 30 October 2006, 10:27:38 »

Hi All,

Can I just ask when I remove the battery to do this will I need any codes for anything when I reconnect it again? Such as the factory fitted radio etc.

Cheers, Red.

10

Omega General Help / Re: Electrical fault

« on: 29 October 2006, 17:47:30 »

@ Andy B, used to love seeing this sign on the M61 http://www.buryblackpuddings.co.uk/

It's my Birthday tomorrow and your help and been an early present, I feel a lot happier now than when I started this thread.

Cheers and I will keep you posted on my progress.

Ta, Red.

11

Omega General Help / Re: Electrical fault

« on: 29 October 2006, 14:53:21 »

That link look really promising. If in my case it's low voltage then I might get away with just cleaning the connection inside the alternator.

Can I just ask for a quick guide to getting the alternator out of my car? Any pictures on this matter would be great!

Thanks, Red.

12

Omega General Help / Re: Electrical fault

« on: 29 October 2006, 11:02:51 »

Ok,

At 2500rpm the meter read 12.75 so it is still too low even at higher revs.

Does anyone have any pictures detailing where and how to get the alterator off? Also can somebody get me any advice on attempting this?

Don't work in engineering any more but I am reasonably handy with these kind of things.I have a Hayes manual but it doesn't have any pictures of 2.5 engines. I believe that you access it from underneath the car by putting it on axle stands and removing the engine protection plate but I don't know any more than that up to now.

I looked up alternator places in Wigan which where I am based and would you believe it that there is a company called Wigan Alternators.

Oh,  I found this link: http://www.honestjohn.co.uk/carbycar/index.htm?p_make=VAU&h_make=VAU&p_model=%20437. If you look at the bottom it describes how crankshaft sensors can also get ruined by irregular voltage from dodgy alternators. I had my crankshaft sensor changed a week or so back, so it seems even this was caused by the same problem.

If you can help please do, thanks, Red.

13

Omega General Help / Re: Electrical fault

« on: 29 October 2006, 10:45:42 »

Hi,

Just got my multitester and testing the when it idle the readings are between 11.9 - 12.5 volts which is not the 14 volt mark which as I understand is what it should be.

I will go and test at 2500 revs and let you know.

Cheers, Red.

14

Omega General Help / Re: Electrical fault

« on: 29 October 2006, 00:38:24 »

Thanks,

Out of interest what is a ball park price for an alternator for my car and where can I buy it from?

Cheers, Red.

15

Omega General Help / Re: Electrical fault

« on: 28 October 2006, 17:48:52 »

To answer markjay's questions:

When the temp gauge goes up, is the engine actually over-heating, or does it look like a guage fluke?
I'ts hard to say really. Tried squeezing the hosing as I was recommended trying, they were not that hot or that tight, so there doesn't seem to be much pressure buiding and I am not losing water.
 
When the temp gauge goes up, do the electrical fans work? And if they don't, do they start working when the temp goes down?
When the temp goes up the fans do kick in
 
When the TC light comes-on does the ABS light comes-on as well?
No the ABS light is not coming on.
 
Also, can you measure the voltage across the battery terminals when the engine is running (it should be ~14V).
That will be my next job.

Thanks for your help, it is appreciated, Red.