Omega Owners Forum

Chat Area => General Car Chat => Topic started by: Impact Pete on 17 January 2012, 21:04:35

Title: Which Signum engine is the best?
Post by: Impact Pete on 17 January 2012, 21:04:35
A member of my family is looking at Signums tomorrow and asked me which engine would be the better more reliable one.

Any one got any experience or advice?
Title: Re: Which Signum engine is the best?
Post by: Marks DTM Calib on 17 January 2012, 21:31:05
3.0 diesel is quite a nice lump.

2.8 turbo is mental
Title: Re: Which Signum engine is the best?
Post by: Impact Pete on 17 January 2012, 22:13:12
3.0 diesel is quite a nice lump.

2.8 turbo is mental

I think they have spotted a 2l turbo and a 2.2l and a 1.9l diesel one of them had an auto box
Title: Re: Which Signum engine is the best?
Post by: Lazydocker on 17 January 2012, 22:14:54
The 2.2 Diesel is chain driven :y
Title: Re: Which Signum engine is the best?
Post by: Omega_Dan on 17 January 2012, 22:15:58
Ive driven a 1.9 Cdti 150bhp which was nice to drive. lots of torque but quite noisy. Nice to drive to be fair if a bit vectra'ish'.
Title: Re: Which Signum engine is the best?
Post by: Andy B on 17 January 2012, 22:17:32
The 2.2 Diesel is chain driven :y

So is a Smart's 3 cylinder engine.  ::) ::) ::) It still died! ??? ???
Title: Re: Which Signum engine is the best?
Post by: Impact Pete on 17 January 2012, 22:23:36
ok so firstly diesel or petrol?
Title: Re: Which Signum engine is the best?
Post by: pscocoa on 18 January 2012, 09:59:52
Depends on the miles to be put on it - 12000 pa plus in longish journeys then 1.9 cdti 150 bhp auto would be good. We have manual and only problem there is the dual mass flywheel. You must check for rattles which vary in noise with clutch depression and at idle. Ask about any issues with dmf and if it has been changed and when as they seemed to get on top of this problem with later dmf parts. I have had 2 dmfs in first 3 years but all quiet at present with 25k on latest dmf.

Great car otherwise.
Title: Re: Which Signum engine is the best?
Post by: Del Boy on 18 January 2012, 10:09:08
2.8 Turbo is most defiantly the best engine, and it's chain driven  :y
Title: Re: Which Signum engine is the best?
Post by: Nick W on 18 January 2012, 11:38:49
The 2.2 Diesel is chain driven :y

They still break though!
Title: Re: Which Signum engine is the best?
Post by: pscocoa on 18 January 2012, 16:26:35
We do not know if person considering Signum is economy consciousbor after performance  - the 1.9 diesel gives around 50mpg
Title: Re: Which Signum engine is the best?
Post by: 05omegav6 on 18 January 2012, 18:41:42
2.2 petrol is a liability if it has been anywhere near cheap petrol, as it kills the fuel pump :-\.

1.9 16v CDTI can have issues with the inlet manifolds, the 120bhp 8v is better in this respect :-\.

HTH, Al :y.
Title: Re: Which Signum engine is the best?
Post by: Impact Pete on 19 January 2012, 08:36:06
2.2 petrol is a liability if it has been anywhere near cheap petrol, as it kills the fuel pump :-\.

1.9 16v CDTI can have issues with the inlet manifolds, the 120bhp 8v is better in this respect :-\.

HTH, Al :y.

That is what they have bought now on an 06 plate, so what do they need to look out for?
Title: Re: Which Signum engine is the best?
Post by: Marks DTM Calib on 19 January 2012, 08:39:01
2006 - Swirl flaps, EGR needs cleaning every year and listen for knocks from the DMF (pretty much all these were addressed by 2008 although the EGR clean is recommended)
Title: Re: Which Signum engine is the best?
Post by: pscocoa on 19 January 2012, 13:17:06
if we are moving off the engine issue then springs have been quite a problem although (touch wood) not for us in 70000 miles and if it appears noisy you might find that the acoustic sump tray has disappeared - usual issues like tyre wear similar to Omega and you will get a droning noise from rear worn tyres which many confuse with wheel bearing faults.
Title: Re: Which Signum engine is the best?
Post by: henryd on 19 January 2012, 15:02:01
if we are moving off the engine issue then springs have been quite a problem although (touch wood) not for us in 70000 miles and if it appears noisy you might find that the acoustic sump tray has disappeared - usual issues like tyre wear similar to Omega and you will get a droning noise from rear worn tyres which many confuse with wheel bearing faults.

I see a lot of front wheel drive car's with that problem,the inner edges of the rear tyre get lumpy and the noise that's produced is much the same as a worn bearing as you say.
Title: Re: Which Signum engine is the best?
Post by: Marks DTM Calib on 19 January 2012, 16:13:22
Signum setup is mega adjustable so its worth getting relaible full geo done.
Title: Re: Which Signum engine is the best?
Post by: pscocoa on 19 January 2012, 16:39:04
Signum setup is mega adjustable so its worth getting relaible full geo done.

Precisely - as I found out to my cost - 25000 miles plus on first set of tyres and then a disaster at around 40000 - tyres replaced and wore again  in just a few 000s - set up completely out - must have been when they were messing with 2nd dmf change
Title: Re: Which Signum engine is the best?
Post by: Marks DTM Calib on 19 January 2012, 16:42:50
Rears are fully adjustable to, they have offset bolts for adjustment.