Omega Owners Forum - Almost sure its head gasket!!

immortal Newbie Offline Posts: 45 Drives: Omega Elite 2.5 V6	Almost sure its head gasket!! 02. Apr 2011 at 17:58 Hi, Im worried the head gasket has gone on my 2.5 v6. Im getting an intermittent misfire , when its warm or cold, theres a slight browny tinge to the coolant, coolant bubbles under heavy revs. Do you think it is head gasket or something else? Matt
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tunnie Over Active Poster Offline Posts: 22520 London, W3 Gender: Drives: 2.2 CD (LPG'd) & BMW R1200 GS	Re: Almost sure its head gasket!! Reply #1 - 02. Apr 2011 at 18:00 brown tinge to coolant suggests oil cooler is failing, miss-fire could well be down to a leaking cam cover gasket, letting oil into the plugs
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immortal Newbie Offline Posts: 45 Drives: Omega Elite 2.5 V6	Re: Almost sure its head gasket!! Reply #2 - 02. Apr 2011 at 18:03 Hi Tunnie, Ive looked around the cam cover gaskets and it looks bone dry? Matt
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tunnie Over Active Poster Offline Posts: 22520 London, W3 Gender: Drives: 2.2 CD (LPG'd) & BMW R1200 GS	Re: Almost sure its head gasket!! Reply #3 - 02. Apr 2011 at 18:04 looked inside the plugs wells? Checked for oil/water? If your coolant is going brown, its not worth driving it until you get the oil cooler fixed
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immortal Newbie Offline Posts: 45 Drives: Omega Elite 2.5 V6	Re: Almost sure its head gasket!! Reply #4 - 02. Apr 2011 at 18:06 Hi, The water isnt going brownb , its clear its just it has a bit of brown on the cap when i take it off and the coolant looks slightly cloudy. How much is an oil cooler part? Matt
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Andy H Omega Knight Offline Posts: 1833 Cornwall Gender: Drives: 03 2.6 Elite Auto	Re: Almost sure its head gasket!! Reply #5 - 02. Apr 2011 at 18:07 immortal wrote on 02. Apr 2011 at 18:03: Hi Tunnie, Ive looked around the cam cover gaskets and it looks bone dry? Matt Have you tried pulling the plug leads? Oil leaking into the plug wells can destroy the rubber boots and cause a misfire.
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tunnie Over Active Poster Offline Posts: 22520 London, W3 Gender: Drives: 2.2 CD (LPG'd) & BMW R1200 GS	Re: Almost sure its head gasket!! Reply #6 - 02. Apr 2011 at 18:08 Can't remember exactly, have feeling its arounD £130 ish for all the bits and bobs. Is the brown content on the cap oily? Whats your coolant maintenance been like?
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immortal Newbie Offline Posts: 45 Drives: Omega Elite 2.5 V6	Re: Almost sure its head gasket!! Reply #7 - 02. Apr 2011 at 18:13 Hi, It feels a little oily yes , almost like a film. Changed the coolant with vauxhall red about 3 months ago. Had the SAi pipe go on me a few days ago , not sure if thats related. Matt
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immortal Newbie Offline Posts: 45 Drives: Omega Elite 2.5 V6	Re: Almost sure its head gasket!! Reply #8 - 02. Apr 2011 at 20:56 Right... Checked the dipstick and theres no sludge and its not missing actually , its a rough tickover. Could this have something to do with me disabling the SAI valve by pulling the fuse out? If not what could cause the rough idling (almost like the engine is chugging slightly) Matt
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RobG Omega Lord Offline I might have a link, pic or part number for that Posts: 7968 Bristol Gender: Drives: 53 plate 2.2 CD auto	Re: Almost sure its head gasket!! Reply #9 - 02. Apr 2011 at 21:03 Have you checked the plugwells for oil as suggested
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immortal Newbie Offline Posts: 45 Drives: Omega Elite 2.5 V6	Re: Almost sure its head gasket!! Reply #10 - 02. Apr 2011 at 21:24 hi , didnt have chance earlier and its dark now so will check first thing tomorrow and report back Matt
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immortal

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Posts: 45

Drives: Omega Elite 2.5 V6

Re: Almost sure its head gasket!!
Reply #11 - 03. Apr 2011 at 09:58

Hi,

No oil at all in plug wells. It isnt so much like its missing (although when driving sometimes it does make a slight rattling noise) but its the rough tickover that is more noticeable. (does it more when the car is warm. Just started her up from cold and its fine and ticking over lovely)

Just double checked the dipstick and no sludge/mayo of any kind

Matt

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« Last Edit: 03. Apr 2011 at 09:59 by immortal »

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mrgreen Senior Member Offline Posts: 766 Salzburg/austria Gender: Drives: 2.2 facelift caravan	Re: Almost sure its head gasket!! Reply #12 - 03. Apr 2011 at 19:57 well start up fine so on choke and then runs a bit rough? is this maf sensor as on start-up the maf sensor is inoperative?? i am fully geussing but it sounds like on choke fine but normal temp it ain't getting something?? i will follow this thread with interest!!
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mrgreen

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Salzburg/austria
Gender: male

Drives: 2.2 facelift caravan

Re: Almost sure its head gasket!!
Reply #13 - 03. Apr 2011 at 19:59

immortal wrote on 03. Apr 2011 at 09:58:

Hi,

No oil at all in plug wells. It isnt so much like its missing (although when driving sometimes it does make a slight rattling noise) but its the rough tickover that is more noticeable. (does it more when the car is warm. Just started her up from cold and its fine and ticking over lovely)

Just double checked the dipstick and no sludge/mayo of any kind

Matt

could this be pinking!????

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the funniest thing about this particular signature is that by the time you realise it doesn't say anything it's to late to stop reading it

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Andy B Over Active Poster Offline Posts: 21988 Bury Lancs Gender: Drives: 1999 3.0 Elite auto/TDM	Re: Almost sure its head gasket!! Reply #14 - 03. Apr 2011 at 20:05 mrgreen wrote on 03. Apr 2011 at 19:59: ... could this be pinking!???? Do cars still 'pink' when they have a knock sensor or two?
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