It smokes all the time and its thick Black smoke.

I thought it would be Blue but i keep reading that when the Turbo fails it can causes Black smoke?

For example..

We can generally understand what is wrong with a diesel engine by the colour of smoke emitted from the exhaust. There are three basic colours - black, white and blue.

This is due to a air to fuel ratio imbalance, either the fuel system is delivering too much fuel into the engine or there is not enough clean air (oxygen ) a few things to look for :

• Faulty injectors (injectors need attention at about 100.000 to 120 000 miles)
• Faulty injector pump
• Dirty air cleaner
• Turbocharger or intercooler faulty
• Problems within cylinder head, valves clogged up due to faulty EGR (exhaust gas recycling unit)

Normally means that the fuel injected into the cylinder is not burning correctly. The smoke will burn your eyes.

• Engine/pump timing out
• Fuel starvation to the pump causing the pumps timing not to operate correctly
• Low engine compression
• Water/petrol in the fuel

The engine is burning engine oil

• Worn cylinders or piston rings
• Faulty valves or valve stem seals
• Engine over full with engine oil
• Faulty injector pump/lift pump allowing engine oil to be mixed with the diesel

Edited by CorsaPita on 24/05/2010 at 19:44

Has the new turbo improved the smoke problem? Black smoke with lack of performance is almost always cause by insufficient air. Have you checked the EGR system?

Presumably you have checked the air filter and piping?

If the turbo is working properly it shouldn't have to draw air in. Can you disconnect the pipe from the turbo output to the inlet manifold? If so check that there is actually some air pressure coming out of the turbo. How about the EGR the valve it isn't stuck open is it?

This car has had a head gasket not very long ago, do you think some thing could be put back wrong?

Take it up the motorway when at temp drop to 3rd gear and boot it for a bit look in the rear view mirror does it look like the Batmobile?

Commonly known as an "Italian tune up" is there any smoke? get those valves working taking the revs up it may just sort your problem get it back and check the compression readings again.

You probably have a clogged up car and it needs a good thrash to clear.

I've just been reading the recipt for the Head gasket and noticed there is a seprate recipt for a second hand cam box (says it came from a 2006 corsa combo) so are all the cams and flywheels the same? i.e. could it have mismatched parts on it that when timed up with the proper tools makes it out of time? (long shot i know but you never know, i just woundered if the Combo may have had a diffrent gearbox or some thing like that).

As for Timing, If the engine is turned clockwise until the 6mm dowl goes in the hole in the Bottom of the gear box bell housing and the Cam locking tool clicks into the cam that should be correct?

Is there a test i can do to see if the EGR is working correctly? there is no engine lights on and it does look new but you never know it may be a bad valve from the factory? are they suposed to be open on idle and shut when being driven or the other way round? i was told to check it run the engine for a few muinets and see if its exhaust hot or just warm, but if the valve is open on idle its going to get warm?