smoking 2.5 tranny

[fingers]

Hi Guys,
I have a 1990 2.5 diesel transit that blows out white smoke constantly,it has failed an emmision test for its m.o.t.Last year a mate of mine fitted another injector pump for me and it has smoked ever since,if i crack open number 3 injector whilst putting revs on the smoke clears so i changed that injector but still no joy.I know the injectors are colour coded so i put the same coloured injector in.Has anyone got a clue what it could be.I went to lucas and told them about it and they didnt want to know because someone had fitted this other injector pump.How can i tell if this pump is compatible with my engine because my so called mate may have fitted the wrong one.Thanks a lot fellas and please somebody help me. fingers

[jay]

does the engine use any water??maybe the head or gasket is leaking a little n cyl number 3..or the pump is no good..do the pump inject ok on no 3??

[fingers]

Hi Jay,
Water is fine,dont have to top up much at all and there is plenty of fuel at number 3 injector maybe even too much, someone told me white smoke is a sign of unburnt fuel thanks Jay,Fingers

[MrMPuk]

Could be air.

[fingers]

Hi mr mpuk,
Without sounding too thick, how do you mean it could be air and how would i go on about rectifying it,Thanks Fingers.

[MrMPuk]

Air getting in to the fuel system.

[100ps_drw_hicube]

try some ptfe tape on the injector unions it will help a bit

[MrMPuk]

That's really a last resort though and should only really be used once you found where the fault is!

[fingers]

Thanks fellas,but how do I find where the fault is?Im not very mechanically minded.Fingers

[Smooth Hound]

I would change the fuel filter, Its possible water has collected , it doesnt take alot , If their is a drain turny thing on the bottom of filter bowl then undo it ( after leaving the van still and switched of for a couple of ours , to allow the water to seperate to the bottom of the bowl.) and just drain a quarter of the filter bowl out into a cup, the water will probably be visible.
Mike