smoking engine

[agranel]

Hi, i'm a new member and this is my first post. I have 2.2dti frontera that starts perfectly first turn of the key,with normal puff of black smoke, however when i rase the RPM to any fixed RPM, it starts to chatter and clouds of grey smoke and the smell of unburned fuel,rev it up and it clears,return to any fixed engine speed and clouds of smoke again. I have changed fuel filter,all the leak off pipes and tees,cleaned ERG, it failed the mot on emissions,any idea's,

[bungz]

Have injectors tested would be my first port of call.

Presume you have looked for codes etc

[agranel]

Garage said no fault code came up,so next job is injectors out (bit of a fiddle i'm told,remove cam, oooooer).

[E-bmw]

As above injectors would be my first port of call with that.

[agranel]

Thanks for your posts,i've just taken the inlet manifold off.OMG what a mess under there,it's taken 2 hours to clean all the crap off, where does it all come from? would'nt mind betting thats part of the problem.

[finlo]

agranel said:

Thanks for your posts,i've just taken the inlet manifold off.OMG what a mess under there,it's taken 2 hours to clean all the crap off, where does it all come from? would'nt mind betting thats part of the problem.

That's the EGR,s for you, makes lumps of coal in a couple of years that nature would take millions of years to create.

[agranel]

thinking of throwing the stuff on my log burner,should last a couple of days.

[agranel]

Hi, just back off hols and time to get stuck into the manifold / head again. can any one give me any tips as to how i can remove all the oily/hard carbon from deep in the inlet ports, the secondary ports were completly clogged i've removed most of the carbon that i can get at but they appear to go a long way into the head.Would flooding them with carb cleaner do the trick? I have removed the cam to replace the injectors so no problem with fluid getting into the engine.

[stevieturbo]

Remove the valves, and if you cannot take the head somewhere to get cleaned....it's just a case of some elbow grease and various tools/implements to scrape or clean it all off.

Soaking it in most fluids wont really do a lot, although it may soften the crap up a tiny amount. It still comes back to same thing...bit of hard work ( unless you have a soda blaster or similar )

[agranel]

Thanks Steve. don't realy want to take the head off, so i suppose it's a lot of elbow grease.

[PaulKemp]

I used a mixture of engine cleaning stuff I had lying around on a Mondeo TDCI manifold, carb cleaner did a good job but it was mostly about scooping the muck off then using carb cleaner and cloths.
It took forever and created an unholy mess, had to throw the container I cleaned it in and the cloths I was wearing