Omega Owners Forum

Chat Area => General Car Chat => Topic started by: henryd on 24 November 2012, 10:36:27

Title: Signum v6 diesel
Post by: henryd on 24 November 2012, 10:36:27
Been offered an 04 plate 3.0 24v CDti elite version for pennys with 120k on the clock,full history and recent cambelt,right, thats the good news so come on people tell me the bad ???
Title: Re: Signum v6 diesel
Post by: 05omegav6 on 24 November 2012, 10:44:27
Manual or auto :-\ If manual, then probably only really the injectors and fuel pump to worry about given their replacement costs. Autobox not the best...
Title: Re: Signum v6 diesel
Post by: henryd on 24 November 2012, 10:51:47
its auto Al and to be honest I wouldn't want the manual in that type of vehicle but thats my preference and at the price I've been offered if it blows up I'd break it for parts :y
Title: Re: Signum v6 diesel
Post by: Elite Pete on 24 November 2012, 11:03:47
Don't the auto boxes suffer, I also believe they have there own swimming pool from rubbish seals around the boot
Title: Re: Signum v6 diesel
Post by: Del Boy on 24 November 2012, 11:05:58
If it's cheap and runs well, buy it  :y.
Title: Re: Signum v6 diesel
Post by: henryd on 24 November 2012, 11:18:59
If it's cheap and runs well, buy it  :y.

Its silly cheap Del,thats why I'm keen :y
Title: Re: Signum v6 diesel
Post by: Del Boy on 24 November 2012, 11:56:35
If it's cheap and runs well, buy it  :y.

Its silly cheap Del,thats why I'm keen :y

Silly cheap sounds good, in which case, buy it  ;D :y.
Title: Re: Signum v6 diesel
Post by: tunnie on 24 November 2012, 12:21:26
Recall master saying post 2007 the auto boxes were much better :)
Title: Re: Signum v6 diesel
Post by: 05omegav6 on 24 November 2012, 12:28:52
Recall master saying post 2007 the auto boxes were much better :)
Probably won't help Henry much then ::)
Title: Re: Signum v6 diesel
Post by: henryd on 24 November 2012, 13:12:00
Recall master saying post 2007 the auto boxes were much better :)
Probably won't help Henry much then ::)

Lol'I'll risk it for a biscuit ::)
Title: Re: Signum v6 diesel
Post by: henryd on 24 November 2012, 13:12:40
Its got the travel assistant fitted as well,fridge etc :o
Title: Re: Signum v6 diesel
Post by: 05omegav6 on 24 November 2012, 13:18:46
Its got the travel assistant fitted as well,fridge etc :o

Quite a sought after option for those :y less popular in the Vectra C, but suits the Signum due to the 40/20/40 rear seat set up :y

Is it an Elite? Might also have full electric front seats :y
Title: Re: Signum v6 diesel
Post by: Keith ABS on 24 November 2012, 14:38:03
   Road tax not that bad either is it?
Keith B
Title: Re: Signum v6 diesel
Post by: Field Marshal Dr. Opti on 24 November 2012, 15:55:09
For future reference, how much is silly cheap, Henry? :y
Title: Re: Signum v6 diesel
Post by: henryd on 24 November 2012, 16:43:38
For future reference, how much is silly cheap, Henry? :y

Straight swap for the Vitara in my signature which owes me bugger all :y
Title: Re: Signum v6 diesel
Post by: Field Marshal Dr. Opti on 24 November 2012, 17:47:10
For future reference, how much is silly cheap, Henry? :y

Straight swap for the Vitara in my signature which owes me bugger all :y


So we can say £5,000 then ::) ::) ::) ;). Sounds a bit steep for an 04 Signum. ;D ;D ;)
Title: Re: Signum v6 diesel
Post by: henryd on 24 November 2012, 21:52:34
Picked up the Signum this afternoon and first impressions are good,plenty of kit with Elite spec and loads of grunt from the engine,gearbox is smooth and no warning lights present so at the moment quite chuffed :y
Title: Re: Signum v6 diesel
Post by: biggriffin on 24 November 2012, 23:07:19
 theve got enough mid range to pull a house down,
   mates got one thats been chipped,fuel consumption got better by 3mpg and the mid range was even better.
   
 the 3.0L diesal was evaulate by plod in the vectra till they offered them the "C" the vxr engine at a better price,there are some 3.0L diesal ones about if you wait TV had some so did met/dpg..
Title: Re: Signum v6 diesel
Post by: henryd on 25 November 2012, 00:49:57
theve got enough mid range to pull a house down,
   mates got one thats been chipped,fuel consumption got better by 3mpg and the mid range was even better.
   
 the 3.0L diesal was evaulate by plod in the vectra till they offered them the "C" the vxr engine at a better price,there are some 3.0L diesal ones about if you wait TV had some so did met/dpg..

I agree,mid range torque is very good,actually it makes my old 2.5 v6 omega seem very tame in comparison ???
Title: Re: Signum v6 diesel
Post by: Marks DTM Calib on 26 November 2012, 08:13:59
The Auto box was never the issue on the Auto's, it was the Auto oil cooler. They used a poor water/oil heat exchanger built into the rad (not as good as that used on the Omega which is pretty bullet proof) which failed resulting in water in the gearbox.

Simple fix is to fit an oil-air oil cooler.  :y
Title: Re: Signum v6 diesel
Post by: henryd on 26 November 2012, 09:28:14
The Auto box was never the issue on the Auto's, it was the Auto oil cooler. They used a poor water/oil heat exchanger built into the rad (not as good as that used on the Omega which is pretty bullet proof) which failed resulting in water in the gearbox.

Simple fix is to fit an oil-air oil cooler.  :y

I might well do that anyway as this may get some towing duties :y
Title: Re: Signum v6 diesel
Post by: henryd on 26 November 2012, 10:46:46
I've done just over 100 miles over the weekend with the Signum,mixed driving down here including visit to parents,shopping etc and its averaged 40.5 on the trip computer :o :o,me pleased with that :y
Title: Re: Signum v6 diesel
Post by: Marks DTM Calib on 26 November 2012, 11:18:45
I've done just over 100 miles over the weekend with the Signum,mixed driving down here including visit to parents,shopping etc and its averaged 40.5 on the trip computer :o :o,me pleased with that :y

There not a bad (Isuzu) engine in those, pity they dont breath a bit better as they would have much more go and potential (the breathing is a bit restricted so chipping them does not yield as much as other engines)
Title: Re: Signum v6 diesel
Post by: henryd on 26 November 2012, 12:00:59
I've done just over 100 miles over the weekend with the Signum,mixed driving down here including visit to parents,shopping etc and its averaged 40.5 on the trip computer :o :o,me pleased with that :y

There not a bad (Isuzu) engine in those, pity they dont breath a bit better as they would have much more go and potential (the breathing is a bit restricted so chipping them does not yield as much as other engines)

Vx don't even try to hide the fact its an Isuzu engine,its got badges all over the engine bay with Isuzu written on them,very impressed with the refinement of it though,very quiet indeed on the move,any idea if the autobox is Gm or Isuzu Mark?
Title: Re: Signum v6 diesel
Post by: Marks DTM Calib on 26 November 2012, 13:44:06
Is it the 5 (AF33) or 6 speed?
Title: Re: Signum v6 diesel
Post by: henryd on 26 November 2012, 14:47:38
Is it the 5 (AF33) or 6 speed?

Its the 5 speed Mark,I think I'm glad its not the CV tronic job,please tell me I should be ???
Title: Re: Signum v6 diesel
Post by: Marks DTM Calib on 26 November 2012, 15:10:27
In which case its the AF33 Aisin box (AW55-50SN in Aisin speak).

No real issues with the six speed
Title: Re: Signum v6 diesel
Post by: Marks DTM Calib on 26 November 2012, 15:18:10
Some info here

http://www.gminsidenews.com/index.php?page=trans_guide
Title: Re: Signum v6 diesel
Post by: henryd on 26 November 2012, 16:32:38
In which case its the AF33 Aisin box (AW55-50SN in Aisin speak).

No real issues with the six speed

Any idea what oil it uses Mark,struggling to find much info on it :-\
Title: Re: Signum v6 diesel
Post by: Marks DTM Calib on 26 November 2012, 16:55:13
Its T-IV fluid e.g. Mobil ATF 3309 and should be changed every 50K miles

Same gearbox is used in Volvos and Jap cars
Title: Re: Signum v6 diesel
Post by: henryd on 26 November 2012, 18:56:53
Its T-IV fluid e.g. Mobil ATF 3309 and should be changed every 50K miles

Same gearbox is used in Volvos and Jap cars

Cheers Mark :y :y
Title: Re: Signum v6 diesel
Post by: henryd on 27 November 2012, 22:46:09
I gave this thing a proper prod earlier,my god it gains speed quickly especially in the mid range,did notice though that even in kickdown it changes up at 4k revs presumably as thats where the torque curve peaks :y
Title: Re: Signum v6 diesel
Post by: Marks DTM Calib on 28 November 2012, 08:11:42
Sounds high, the peak torque is around 2000-2200 rpm.
Title: Re: Signum v6 diesel
Post by: henryd on 28 November 2012, 09:31:16
Sounds high, the peak torque is around 2000-2200 rpm.

I can well believe that as there doesn't seem much point in booting it as it picks up well left to its own devices :y
Title: Re: Signum v6 diesel
Post by: Marks DTM Calib on 28 November 2012, 09:55:05
It should start to pull around 1400-1500 rpm given the turbo type fitted and run aout around 3800-4000 rpm.
Title: Re: Signum v6 diesel
Post by: Lazydocker on 28 November 2012, 10:04:49
They aren't to everyone's taste but I quite like them :y

If only they were RWD I'd have been looking for one instead of the current Omega ::)
Title: Re: Signum v6 diesel
Post by: henryd on 28 November 2012, 11:17:18
They aren't to everyone's taste but I quite like them :y

If only they were RWD I'd have been looking for one instead of the current Omega ::)

I know,I miss the rear wheel drive but have to say its quieter than the Omega on the road,difficult to hear the engine much at all let alone tell that it drinks from derv pump