Omega Owners Forum

Omega Help Area => Omega General Help => Topic started by: Kosaisan on 28 November 2012, 08:58:32

Title: Something wrong with 2.5L(head gasket?)
Post by: Kosaisan on 28 November 2012, 08:58:32: Hey guys

I've got a problem with my car, I got a terrible noise from the engine and it's vibrating abit. It all happend suddenly after I've stopped the car with the engine.
And when I started to drive again the car didn't respond right even with pedal down, and alot of exhaust.
I expected that it could be the head gasket but theres no coolant in oil or oil in the coolant.
And the smell of not burnt fuel from the exhaust too...

Anybody with Idea what it could be.
I'm asking here first since cost a fortune to check this at the workshop here in Norway...
Title: Re: Something wrong with 2.5L(head gasket?)
Post by: henryd on 28 November 2012, 09:34:53: Which engine?,petrol or diesel?,try the paper clip test to see what codes are present(info in the maintenance section) :y
Title: Re: Something wrong with 2.5L(head gasket?)
Post by: Kosaisan on 28 November 2012, 09:49:20: Sorry about that, it's a petrol engine
Title: Re: Something wrong with 2.5L(head gasket?)
Post by: car5car on 28 November 2012, 10:10:51: post video of that knock.
Title: Re: Something wrong with 2.5L(head gasket?)
Post by: Kosaisan on 28 November 2012, 10:41:54: https://www.youtube.com/watch?v=RDsUi5b5fWM&feature=youtube_gdata_player (https://www.youtube.com/watch?v=RDsUi5b5fWM&feature=youtube_gdata_player)

Heres a video from the sound....
Title: Re: Something wrong with 2.5L(head gasket?)
Post by: henryd on 28 November 2012, 11:24:28: Quote from: Kosaisan on 28 November 2012, 10:41:54
https://www.youtube.com/watch?v=RDsUi5b5fWM&feature=youtube_gdata_player (https://www.youtube.com/watch?v=RDsUi5b5fWM&feature=youtube_gdata_player)

Heres a video from the sound....

Linky no worky for me :-X
Title: Re: Something wrong with 2.5L(head gasket?)
Post by: dbug on 28 November 2012, 16:56:37: Nor me - set the video to sharing not private.

Possible misfire? Oil in plug wells, plug leads, DISS pack - check

Any codes?

Very unlikely to be head gasket on 2.5 V6 mate :)
Title: Re: Something wrong with 2.5L(head gasket?)
Post by: Kosaisan on 28 November 2012, 17:41:10: Try again I think I got i right this time..

Heres another video this time with a warm engine

http://www.youtube.com/watch?v=3zlLbiAsVgc (http://www.youtube.com/watch?v=3zlLbiAsVgc)

Did also see some oil on the side of the engine straight above the manifold.
Tryed driving it now and there's alot of smoke from the exhaust and the car don't seem to be any quick....
Title: Re: Something wrong with 2.5L(head gasket?)
Post by: Michael2.6 on 28 November 2012, 22:29:47: From your video looks like your engine has back pressure,
Title: Re: Something wrong with 2.5L(head gasket?)
Post by: Kosaisan on 29 November 2012, 20:14:05: Some feedback. Startes to remove the plenume and alot of mayo in the hoses. Found that there were some oil in first in the spark plug well in nr 1. Removed the oil and removed the sparkplug from 1,3 and 5 both 3 and 5 where black. And then I cleaned the plenum and the oil breather since the where alot of nasty stuff there. But it all together and took it for a spin but stil not better. I also noticed the i have a hole in the middle of the exhaust....
Title: Re: Something wrong with 2.5L(head gasket?)
Post by: omega3000 on 29 November 2012, 20:54:32: Did you clean the breather box and small connection ...

(http://i219.photobucket.com/albums/cc41/milleblack/BREATHERBODYOMEGA.jpg)
Title: Re: Something wrong with 2.5L(head gasket?)
Post by: dbdb on 30 November 2012, 00:36:23: Looking at all the mayo in the oil filler cap and stem and steam coming out of the dip stick and exhaust are you sure it isn't losing water? Is it steam, can't be sure from the video, stick you hand in it is it moist or oily? Looks like head gasket to me.
Title: Re: Something wrong with 2.5L(head gasket?)
Post by: Kosaisan on 30 November 2012, 06:32:09: Yes I did clean that part....
I'm not loosing any coolant at all and the temp is normal on the car..
The steam that comes out of the dipstick and the filler cap smells like exhaust, there's no sign of head gasket failure theres no oil in the coolant and no water in the oil.....
And the coil pack was changed last year...
Right now I'm not sure what it is anymore, it goes better fram higher speed but from the 0 and up it's kinda not willing at all...
Title: Re: Something wrong with 2.5L(head gasket?)
Post by: dbdb on 03 December 2012, 01:06:05: If you're not losing any coolant water all that mayo is coming from water somewhere. Only place left is the exhaust gases, I think they must be going into the engine past a piston which fits with all that gas coming out the dipstick. Try disconnecting each sparkplug lead one by one if it doesn't slow that is your cylinder. However if it is that - broken piston ring or damaged cylinder or piston, it will be very expensive and probably indicates other wear. Other option is gasses coming past worn/broken/mistimed valves but I wouldn't expect those to appear in the engine.

Being optimistic the mayo could just be because you are living in cold damp Norway I suppose. Does seem a lot though. Is there any way rain or car wash water got into the engine?
Title: Re: Something wrong with 2.5L(head gasket?)
Post by: Gaffers on 03 December 2012, 03:43:51: If exhaust gas is leaking past a piston then that will explain any abnormal moisture level in the oil without coolant loss.

Are you sure the dis pack and spark leads are good after all that oil was in the wells? It can absolutely knacker them both when the black smelly stuff gets in there.
Title: Re: Something wrong with 2.5L(head gasket?)
Post by: Kosaisan on 03 December 2012, 08:07:04: I try to have them checked because I'm not sure if my friend checked this while I was cleaning the plenum...
I noticed the oil in the sparkplug well nr 1...
I'm not sure if the spark leads are good after that but the dis pack I changed last year so it's brand new and should be oki...