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1

Omega General Help / Re: Auto box spitting oil from the bell housing

« on: 16 April 2010, 12:31:07 »

Hi
I fixed my ar25 in situ, had to do it quick because of  block paved drive.
What difference is there in the mountings prop etc to the ar35 ? or is it straight swap.??

2

Omega General Help / Re: Auto box spitting oil from the bell housing

« on: 13 April 2010, 16:38:50 »

I still dont know why it dumped a lot of its oil, but I did find the small leak that made it necessary fro regular top ups. It may be that it had run a little low before it overheated and smoked itself.
The leak may be of interest as I fixed it for about 2.50p its a lip seal size of a ten p coin that sits in the side of the box with a selector rod going thru it. It ages since I did it so cant remember all the details but if it is leaking dont be scared off and start scrapping your omega just jack it up and an hour later youd have fishe out the seal and pressed in a new one. If anyone wants further info pls get in touch Ill climb under the car again and describe things better.

3

Omega General Help / Re: Auto box spitting oil from the bell housing

« on: 04 August 2008, 16:37:50 »

I'm in Edlesborough, its in the countryside. All the farmers would be green with envy if I had this chip fitted.
Whats the address of the nearest chip shop in this area?
Also does anyone know how fast they go after being chipped?
Is it as fast as scrapping an Omega when autoboxes break?

I think I need a break..

Thanks for your moral and technical support, I didnt think my problems would be so funny.. great forum

4

Omega General Help / Re: Auto box spitting oil from the bell housing

« on: 04 August 2008, 15:52:14 »

Hi,
The man said he put in 2 litres until it wouldnt take more. I'm not sure whether it should be done with the engine running or not, I dont know how he did it either.
If he did it whilst not running the level will be still below what it should be I assume. Must get under the damn thing and have alook myself, annoying but reliable.
As for down shifting, I'm more of a manual sort of guy, and feel that sticking it into a bend just on brakes isnt the best way to get around corners. Also when going down a long hill, it helps slow the car without heating the brakes, again just how a manual would be driven. Besides its in the handbook.
In Australia I had a Ford Falcon 4litre which was a lot of fun doing this (if you timed the changedown to apex of the bend correctly) you got a nice bit of oversteer .
I can hear you saying "No wonder his gearbox is knackered."
Wait till  I get the engine chipped.

5

Omega General Help / Re: Auto box spitting oil from the bell housing

« on: 04 August 2008, 12:19:49 »

Thanks for that.

Does the bushing knock out easily?
Any pictures??
What mileage had yours done before the problems???
Its the first time that I've shared my problems on a forum and I'm very grateful to all that have responded.
many thanks

6

Omega General Help / Re: Auto box spitting oil from the bell housing

« on: 04 August 2008, 11:05:59 »

Hi Thanks for the reply and link, the pictures are so good, that it leaves nothing to the imagination.
I feel a lot more confident  about doing the work, looks simple enough.
Just need muscles like pop eye to lift it in and out.
Many thanks

7

Omega General Help / Re: Auto box spitting oil from the bell housing

« on: 04 August 2008, 10:19:53 »

Hi
Thanks for the suggestions.
If it was the torque convertor that was leaking wouldnt it do so most of the time? When i accelarate hard its ok, its also ok when doing 60mph. I feel that it either comes out at highish speed 80mph or when shifting down manually.Also it seems to coming from the square hole at the bottom of the bell housing, I'm going to double check the breather, I'll know what it look s like when I find it!.
All gaskets are bone dry.

With what you guys are suggesting, it points to a torque convertor seal?? What does one look like and how does it fit? I presume a neoprene lip seal on the primary shaft that goesinto the torque covertor. Its about 25 years ago since I,ve seen one! (and I wasnt so interested, Doh)
If anyone has some pictures that would help a lot.

8

Omega General Help / Auto box spitting oil from the bell housing

« on: 03 August 2008, 14:43:49 »

Hi,
Didnt have any leaks on short journeys. Approached the motorway changed down to slow, it didnt slow but I got a CHECK auto box, light instead.
Went (very bravely/foolishly) on the motorway at 70+ and it spit out most of its oil :exclamation
It came out of the bottom of the bell housing. Smoke, overheated ticking noises etc, very frightening, well, not the smoke but the thought of being 100 miles from home and in the jaws of the big bill monster.
I got a Peugot garage mechanic to put 2 litres in and off we went, (less 30 quid cash), be it at 60mph without any manual changing down to slow the car.

The most amazing thing was that when I got home an parked it on card board expecting to see an imprint of the omega on the ground, to find that there was no leak and the previously leaked oil had blown away and there wasnt even a drip in sight!!

Could it be that it spits oil from the front gearbox oil seal only at speed, if so why?(internal problem or just bad seal)
Or does it spit oil because of my manual change down to slow the car and that generates extra pressures in the box that forces oil past the seal???
I'm determined to sort it out with a little help from experienced forum members.
It done 169k I think its an AR25 GM4L30E
Thanks

9

Omega General Help / Re: 2.5td fuel economy

« on: 13 April 2010, 16:18:57 »

So the AR25 and AR35 are identical appart from their innards??
If I buy one I just want to make make sure that I rip out all the extra bits(if any that are needed) from the scrapper
Also what mileage is too high for an AR 35. I know it depends on usage and misusage but any opinions would help.

10

Omega General Help / Re: 2.5td fuel economy

« on: 13 April 2010, 12:33:03 »

What make "powerbox" also where are they sold, ebay?

11

Omega General Help / Re: 2.5td fuel economy

« on: 13 April 2010, 10:57:45 »

Thats probably around the right MPG for a TD tractor auto on a combined cycle.  Chipping, in my experience, upped MPG by around 15% (actual), but made the FC inaccurate (overread by around 10% as a guess).

What chip got you the 15% increase in miles/? There are some on ebay, but need to make sure that I buy the apple not the pear!

12

Omega General Help / Re: 2.5td fuel economy

« on: 13 April 2010, 10:54:16 »

The only accurate method of calculating fuel consumption is to brim the tank, use it, then re-brim.

My previous chipped manual-boxed TD returned 33mpg running locally around here - proven!

If you want to chip an auto, you'll need to exchange your 'box for an AR35 version.
When chipped, the 'standard-fit' AR25 will quickly go into meltdown.
Increased torque and all that!
 

How difficult is the Ar 35 swap? I presume that they are different in size and length, that would mean mountings propshaft swap etc. As much detail as you can manage would be great.

13

Omega General Help / 2.5td fuel economy

« on: 02 April 2010, 10:27:26 »

I get 32 mpg on the OBC from an 98 CDX 2.5 td Estate auto. Its done 175k miles and is in good nick only the occasional puf of black smoke when accelarating. It passes emissions tests for the MOT. Is it possible to decrease consumption?
I am considering recon injectors and maybe a chip.
Does anyone have any suggestions or comments.
Many thanks

14

Omega General Help / Re: Windscreen washers - poor perfromance

« on: 02 April 2010, 10:15:56 »

May be the pump, apparently they are a fairly common item to wear out. If you canot hear a lively whirr from behing the front numberplate, when washers are operated, then the pump may be seizing. To change you'll need to take the bumper grill and crossmember off. Its not that difficult. Push the pump away from the resevoir and pull out. Tenner delivered on e*ay

15

Car Parts, bits For Sale & Wanted / Re: Breaking: Champagne (Z489) Elite (Facelift)

« on: 01 May 2010, 13:56:43 »

Is an ar35 available?