Omega Owners Forum

Omega Help Area => Omega General Help => Topic started by: Shackeng on 07 December 2009, 18:37:40

Title: AR25 gearbox on chipped 2.5TD
Post by: Shackeng on 07 December 2009, 18:37:40
Having now established that I am on thin ice with now nearly 24k, out of 94K total, on a chipped tractor with an AR25, is it recommended to carry out an oil (and filter?) change on the gearbox?

Thanks
Title: Re: AR25 gearbox on chipped 2.5TD
Post by: sparkyw666. on 07 December 2009, 18:43:58
Quote
Having now established that I am on thin ice with now nearly 24k, out of 94K total, on a chipped tractor with an AR25, is it recommended to carry out an oil (and filter?) change on the gearbox?

Thanks
i would say its not going to make no odds changing the oil or filter if its going to go its going to go
Title: Re: AR25 gearbox on chipped 2.5TD
Post by: Shackeng on 07 December 2009, 19:42:36
Quote
Quote
Having now established that I am on thin ice with now nearly 24k, out of 94K total, on a chipped tractor with an AR25, is it recommended to carry out an oil (and filter?) change on the gearbox?
Thanks
i would say its not going to make no odds changing the oil or filter if its going to go its going to go
[/highlight]

Thanks for that.
Title: Re: AR25 gearbox on chipped 2.5TD
Post by: zirk on 07 December 2009, 19:51:24
Quote
Having now established that I am on thin ice with now nearly 24k, out of 94K total, on a chipped tractor with an AR25, is it recommended to carry out an oil (and filter?) change on the gearbox?

Thanks

As James May once said:

“You’re trying to create a solution to a problem that shouldn’t have existed in the first place.”


Title: Re: AR25 gearbox on chipped 2.5TD
Post by: Shackeng on 07 December 2009, 20:03:37
Quote
Quote
Having now established that I am on thin ice with now nearly 24k, out of 94K total, on a chipped tractor with an AR25, is it recommended to carry out an oil (and filter?) change on the gearbox?

Thanks

As James May once said:

“You’re trying to create a solution to a problem that shouldn’t have existed in the first place.”




Errrr yes, I think you've just reminded me why I no longer watch TG. [smiley=vrolijk_1.gif]

Title: Re: AR25 gearbox on chipped 2.5TD
Post by: Jimbob on 08 December 2009, 07:59:50
Somethings holding that box together...I wouldnt touch it.

Save the £50 on oil, and the £30 filters and gaskets towards that new box when the time comes  :y
Title: Re: AR25 gearbox on chipped 2.5TD
Post by: Shackeng on 08 December 2009, 09:27:55
Quote
Somethings holding that box together...I wouldnt touch it.

Save the £50 on oil, and the £30 filters and gaskets towards that new box when the time comes  :y

Thanks JB, I'll go with that. :y
Title: Re: AR25 gearbox on chipped 2.5TD
Post by: zirk on 08 December 2009, 11:40:28
Or give the 30 quid to the AA man.
Title: Re: AR25 gearbox on chipped 2.5TD
Post by: Shackeng on 08 December 2009, 14:39:54
Quote
Or give the 30 quid to the AA man.

I think you mean when/if it blows up, otherwise that one has got past me. :-?
Title: Re: AR25 gearbox on chipped 2.5TD
Post by: albitz on 08 December 2009, 15:05:39
Quote
Somethings holding that box together...I wouldnt touch it.

Save the £50 on oil, and the £30 filters and gaskets towards that new box when the time comes  :y
Agreed. The £80 should buy you a good used AR35. :y
Title: Re: AR25 gearbox on chipped 2.5TD
Post by: Shackeng on 08 December 2009, 15:20:50
Quote
Quote
Somethings holding that box together...I wouldnt touch it.

Save the £50 on oil, and the £30 filters and gaskets towards that new box when the time comes  :y
Agreed. The £80 should buy you a good used AR35. :y


Thanks guys, I'm with the programme :y.
Title: Re: AR25 gearbox on chipped 2.5TD
Post by: Seth on 08 December 2009, 16:31:10
Are you positive that you've actually got an AR25 in the car?
Title: Re: AR25 gearbox on chipped 2.5TD
Post by: Shackeng on 08 December 2009, 16:48:37
Quote
Are you positive that you've actually got an AR25 in the car?

Yep, checked it last week, unless the plate is lying!
Title: Re: AR25 gearbox on chipped 2.5TD
Post by: Neil (Cardiff) on 11 December 2009, 01:13:26
Am I the only one that doesn't get it?   :P
Title: Re: AR25 gearbox on chipped 2.5TD
Post by: Seth on 11 December 2009, 08:55:16
Quote
Am I the only one that doesn't get it?   :P
It seems that way bud!
AR25 in a chipped tractor = bad news.
You really need an AR35 once chipped - the former can't really handle the increased torque.
Title: Re: AR25 gearbox on chipped 2.5TD
Post by: Shackeng on 11 December 2009, 09:09:58
Well, its still working, after 24K, so I hope all the negative vibes coming back at me don't cause it to fail. If it does its all your fault >:(
Title: Re: AR25 gearbox on chipped 2.5TD
Post by: Omegatoy on 11 December 2009, 20:19:03
if it is chipped to full power, then you aint got a ar25 in there!!!
it is possible to rebuild the box with ar35internals, as the major difference is only the amount of clutch plates inside, wonder if its been done this way when it was chipped?
have known a brand new or at least it was only 2000miles old  when the car was chipped and it did survive for 3k miles before it gave up the unequal struggle, known 3 or 4 ar25 usually with around a hundred k on them, last less than 200miles
so my opinion is its been done??? 
Title: Re: AR25 gearbox on chipped 2.5TD
Post by: Shackeng on 11 December 2009, 20:38:04
Quote
if it is chipped to full power, then you aint got a ar25 in there!!!
it is possible to rebuild the box with ar35internals, as the major difference is only the amount of clutch plates inside, wonder if its been done this way when it was chipped?
have known a brand new or at least it was only 2000miles old  when the car was chipped and it did survive for 3k miles before it gave up the unequal struggle, known 3 or 4 ar25 usually with around a hundred k on them, last less than 200miles
so my opinion is its been done??? 

Thanks OT, I understand that you are the Oracle on 2.5TD's. All I can tell you is that it was chipped 3 years ago by Jeremy Fearn, the 'chipping' purports to give 170-175 BHP. I can only judge on the difference it made to my car, as I have not driven any other Omega, however, it transformed the performance, and if am not careful, it is very, very, easy to leave rubber on acceleration, I have driven much quicker cars, but the performance now is more than adequate. I am wondering if they beefed up the AR25 boxes towards the end of production of the BMW engined car. :-/
Title: Re: AR25 gearbox on chipped 2.5TD
Post by: tunnie on 11 December 2009, 20:47:23
Quote
Quote
if it is chipped to full power, then you aint got a ar25 in there!!!
it is possible to rebuild the box with ar35internals, as the major difference is only the amount of clutch plates inside, wonder if its been done this way when it was chipped?
have known a brand new or at least it was only 2000miles old  when the car was chipped and it did survive for 3k miles before it gave up the unequal struggle, known 3 or 4 ar25 usually with around a hundred k on them, last less than 200miles
so my opinion is its been done??? 

Thanks OT, I understand that you are the Oracle on 2.5TD's. All I can tell you is that it was chipped 3 years ago by Jeremy Fearn, the 'chipping' purports to give 170-175 BHP. I can only judge on the difference it made to my car, as I have not driven any other Omega, however, it transformed the performance, and if am not careful, it is very, very, easy to leave rubber on acceleration, I have driven much quicker cars, but the performance now is more than adequate. I am wondering if they beefed up the AR25 boxes towards the end of production of the BMW engined car. :-/

All AR25's are the same i believe
Title: Re: AR25 gearbox on chipped 2.5TD
Post by: Jimbob on 11 December 2009, 21:03:53
Ive said it in another thread...there seem to be some strong AR25's out there....

My chipped & ported 3.0 estate had an Ar25 for at least 4 years.....now it hasnt been great lately....but it didnt die!  I dont hang about either.
Title: Re: AR25 gearbox on chipped 2.5TD
Post by: Omegatoy on 12 December 2009, 18:33:25
Quote
Quote
if it is chipped to full power, then you aint got a ar25 in there!!!
it is possible to rebuild the box with ar35internals, as the major difference is only the amount of clutch plates inside, wonder if its been done this way when it was chipped?
have known a brand new or at least it was only 2000miles old  when the car was chipped and it did survive for 3k miles before it gave up the unequal struggle, known 3 or 4 ar25 usually with around a hundred k on them, last less than 200miles
so my opinion is its been done??? 

Thanks OT, I understand that you are the Oracle on 2.5TD's. All I can tell you is that it was chipped 3 years ago by Jeremy Fearn, the 'chipping' purports to give 170-175 BHP. I can only judge on the difference it made to my car, as I have not driven any other Omega, however, it transformed the performance, and if am not careful, it is very, very, easy to leave rubber on acceleration, I have driven much quicker cars, but the performance now is more than adequate. I am wondering if they beefed up the AR25 boxes towards the end of production of the BMW engined car. :-/

heard good things about Jezza fearns before so have no doubt it is chipped  he has a reputation for quality work , maybe then just maybe the ar 25 is still hanging on, but it certainly holds the record for longevity with a chipped TD, unless it has actually had the original chip remapped to give higher power in the higher revband and not so much lower down which would give the box an easier time? either way well doe and just maybe as you say a spare ar35 would be a wise investment for the future!! :y
Title: Re: AR25 gearbox on chipped 2.5TD
Post by: Shackeng on 12 December 2009, 22:43:14
Quote
Quote
Quote
if it is chipped to full power, then you aint got a ar25 in there!!!
it is possible to rebuild the box with ar35internals, as the major difference is only the amount of clutch plates inside, wonder if its been done this way when it was chipped?
have known a brand new or at least it was only 2000miles old  when the car was chipped and it did survive for 3k miles before it gave up the unequal struggle, known 3 or 4 ar25 usually with around a hundred k on them, last less than 200miles
so my opinion is its been done??? 

Thanks OT, I understand that you are the Oracle on 2.5TD's. All I can tell you is that it was chipped 3 years ago by Jeremy Fearn, the 'chipping' purports to give 170-175 BHP. I can only judge on the difference it made to my car, as I have not driven any other Omega, however, it transformed the performance, and if am not careful, it is very, very, easy to leave rubber on acceleration, I have driven much quicker cars, but the performance now is more than adequate. I am wondering if they beefed up the AR25 boxes towards the end of production of the BMW engined car. :-/

heard good things about Jezza fearns before so have no doubt it is chipped  he has a reputation for quality work , maybe then just maybe the ar 25 is still hanging on, but it certainly holds the record for longevity with a chipped TD, unless it has actually had the original chip remapped to give higher power in the higher revband and not so much lower down which would give the box an easier time? either way well doe and just maybe as you say a spare ar35 would be a wise investment for the future!! :y

 8-) 8-) 8-)