Omega Owners Forum

Omega Help Area => Omega General Help => Topic started by: mark68710_0 on 16 August 2006, 14:23:49

Title: After oil cooler change problems
Post by: mark68710_0 on 16 August 2006, 14:23:49
1995 2.5 cdx auto.
Hi everybody,
have been unwell, so i have not been able to do a lot of posting.But now all back to normal.
Have completed the change of the oil cooler and engine now all back together.
Unfortunatly now sounding rough, with no power at low end.ie "you now have to put your foot down to pull away"
Revs are fine 600ish, but there does appear to be a cough when you rev and then the revs drop back down, it
coughs just as the revs get back down to normal.
The engine is sounding a bit  like an old diesel, and does appear to be vibrating quite a bit, which it wasn't doing before.
The really strange thing is there is no engine management light on,so i have no point of origin to look for.
Any ideas or suggestions would be greatfully received a this point.
Unfortunatly canot drive the car to far, as i'm working towards mot as well.Still requiring :-
o/s/r brake pipe
n/s/r brake pipe
n/s/r coil spring
hand brake looking at no adjustment on it. ie "on or off only"
So any advice would help greatly.
I'm still very much a novice
Many thanks

 :)
Title: Re: After oil cooler change problems
Post by: Marks DTM Calib on 16 August 2006, 14:33:16
Air leaks followed by ignition would be my starting point......
Title: Re: After oil cooler change problems
Post by: Markjay on 16 August 2006, 14:37:40
As above, plus possibly HT leads crossed....?

Title: Re: After oil cooler change problems
Post by: johnny.dee on 16 August 2006, 14:48:45
I agree, possibly where you installet the trumpets and ecotec on the top, Im told that the black O rings get changed as a matter of coarse, the orange gaskets should last forever. The first 10 minutes it will sound rough as the oil that has drained of the surfaces and cams will need to be replenished. others will correct me if I am wrong but I believe the cam followers need to be replenished to stop HLA (clatter)
Title: Re: After oil cooler change problems
Post by: mark68710_0 on 16 August 2006, 14:53:25
Air leaks as in pipes not connected firmly enough. Is there any way of telling?
The four pipes which lead into the manifold, ie two large two small, the two small ones do they have a correct
way round? I believe they are air breather pipes.
I think the ht leads are the right way round, but is there any way of telling, as there are no markings on them.
Cheers
Mark
Title: Re: After oil cooler change problems
Post by: Marks DTM Calib on 16 August 2006, 15:33:27
Did you remove the HT leads?
Title: Re: After oil cooler change problems
Post by: mark68710_0 on 16 August 2006, 16:05:37
Yes, to change the spark plugs.
Mark
Title: Re: After oil cooler change problems
Post by: Liam on 16 August 2006, 16:54:37
I'd go for plenum not sealing properly on the intake manifold.  Did you renew all 6 black o-rings, and are you sure they are all seated and sealed correctly?

Liam
Title: Re: After oil cooler change problems
Post by: Marks DTM Calib on 16 August 2006, 17:14:18
Quote
Yes, to change the spark plugs.
Mark

Thats the favourite, are the plug leads numbered (the original ones are), I would call you but I can't find your number!
Title: Re: After oil cooler change problems
Post by: mark68710_0 on 16 August 2006, 17:42:36
Have pm you.
Many thanks
Fellow Mark
Title: Re: After oil cooler change problems
Post by: mark68710_0 on 22 August 2006, 19:17:23
Problem now sorted thanks to Marks DTM Calib ( What this guy doesn't know...Wow ).
Turned out to be connector not connecting at all  on one injector, so hence only firing on five cylinders.
Many thanks and best wishes

Title: Re: After oil cooler change problems
Post by: nixoro on 23 August 2006, 11:13:39
Congrats on getting it sorted  :)
Title: Re: After oil cooler change problems
Post by: mark68710_0 on 23 August 2006, 12:53:48
Cheers nixoro
Title: Re: After oil cooler change problems
Post by: Markjay on 23 August 2006, 13:24:23
Vx dealer whould have charged you for the labour plus £400 for a new ECU..  ;D
Title: Re: After oil cooler change problems
Post by: Eighth_dwarf on 23 August 2006, 13:45:40
Bargin, I'll have 2 if they are only £400!
Title: Re: After oil cooler change problems
Post by: mark68710_0 on 23 August 2006, 14:08:32
Re vauxhall dealer

see below