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[Marks DTM Calib]

Well, its showing a camshaft sensor fault......not unusual on the 4 pots....that doesnt explain the smoke though...

Any mayo on the dipstick or oil filler cap...

[hugster62]

Right, just checked the oil cap and the dipstick and both show no signs whatsoever of emulsified oil, they actually look really clean (apart from oil of course...)

[Martin_1962]

Sounds like cam cover gasket gone. Does it smoke more on right hand bends?

[hugster62]

It only seems to smoke when i get up to 65-70mph and not particularly on bends. In fact the first two times were on a straight bit of road, just a big puff or smoke for a few seconds then nothing.

[hotel21]

Confirming white/grey smoke and not oily blue?

White/grey is, to me, either water (steam) or brake fluid.

Do you have to top up the brake fluid master cylinder?  Not sure of the specific internals on the Omega but I have seen (cant remember specific car or make) where the vacuum accumulator and seal arrangement passes and draws the brake fluid into the engine and gets burnt as grey smoke.

Similar to the brake fluid decokes that were done years ago - poor mans Redex down the neck of the carb.  

Just a thought....

B

[hugster62]

Ok, this is getting stranger by the minute.  I'm pretty sure it's white/grey smoke, the brake fluid master cylinder looks fine, it's full and i haven't needed to refill it but I have noticed a small hole in my exhaust pipe, you can hear now that it's blowing (but it wasn't doing that last night???) but yes, pretty sure white not blue smoke.

Thanks, Gra

[ClarCE]

Ok, this is getting stranger by the minute.  I'm pretty sure it's white/grey smoke, the brake fluid master cylinder looks fine, it's full and i haven't needed to refill it but I have noticed a small hole in my exhaust pipe, you can hear now that it's blowing (but it wasn't doing that last night???) but yes, pretty sure white not blue smoke.

Thanks, Gra

If theres a hole, could the baffling material be coming loose through the corrosion, getting hot and burning?

[TheBoy]

So, if no coolant loss, the white smoke can't be coolant....   ....if its blue oily smoke, is the oil level going down?

[hugster62]

Yeah, what you're saying make perfect sense. There is no water loss but I do have an oil leak, to give you an idea, left overnight. I expect to get a drip of oil about 3-4cm in diameter left on the driveway. I have been keeping an eye on the oil level, topping the oil up, but not really excessively I don't think, I have put in about 2 litres since I bought the car at the beginning of February (about 3 months).  Is that excessive? allowing for the small leak?

Graham

[TheBoy]

Yeah, what you're saying make perfect sense. There is no water loss but I do have an oil leak, to give you an idea, left overnight. I expect to get a drip of oil about 3-4cm in diameter left on the driveway. I have been keeping an eye on the oil level, topping the oil up, but not really excessively I don't think, I have put in about 2 litres since I bought the car at the beginning of February (about 3 months).  Is that excessive? allowing for the small leak?

Graham

I never, ever top up my oil between changes (every 3 - 4k), even when my cam covers failed.

That is quite a leak, can you see where from?

[hugster62]

Right, I've just had a look under the car and there seems to be a small pointed "thing" just about level with the back of the front wheel (as you look at the car from the drivers side) if that makes sense, and pretty much in the centre of the engine (it's just to the back of the actual engine itself, nearly level with the exhaust downpipe). Not sure if that "pointed thing" is anything to do with the oil or maybe that's the route the leak is taking. (It's a real shame I cant post photos)

Any ideas?

Gra

[TheBoy]

Right, I've just had a look under the car and there seems to be a small pointed "thing" just about level with the back of the front wheel (as you look at the car from the drivers side) if that makes sense, and pretty much in the centre of the engine (it's just to the back of the actual engine itself, nearly level with the exhaust downpipe). Not sure if that "pointed thing" is anything to do with the oil or maybe that's the route the leak is taking. (It's a real shame I cant post photos)

Any ideas?

Gra

Host the photo for free at www.photobucket.com

[hugster62]

doh!?

I have my own website...  here's the link

http://www.studio62.co.uk/leak.html

hope this works

[TheBoy]

Looking at the picture, looks like the oil is coming from higher to me... ...can you clean it up a bit to help you seeing where it comes from?

[Martin_1962]

It is a cam cover get the gasket, the 10 O rings, clean all the breathers, wipe up any loose oil.

Take off the Ecotec panel - you will see oil around the plug leads.