Mitsubishi Delica Owners Club UK™

[Boromir]

Our 91 Delica is VERY smoky on start-up.

We had problems last year with the emissions test for MOT, but after about 5 attempts, lots of revving and a tin of "additive" we got our MOT. I worry because the place that MOT'd was the place i got the Delica from the year previous, but now that i am based in Worcs i will have to find a new MOT centre.

Is there anything that can be done to reduce the amount of smoke on start-up and improve the emissions?

Also, are there any Delica Specialists in or around Worcs?

Cheers

[Google]

[tricky]

Lots of smoke on startup usually indicates that engine oil is running down the valves whilst its left for a while...

Imagine that the engine oil is being squirted and generally splashed about whilst the engine is running. When you stop the engine - a certain amount of this oil gets stuck in the cylinder head. It collects in the lowest point of the head - which is the valve guide area. If these guides are worn, or the rubber seals are perished or cracked then the oil drains into the cylinders - and when u start the vehicle - the oil collected in the cylinders burns off during the combustion cycle, producing blue smoke.

So, if it's usually only smoking during startup - have the valves and guides checked. But I will warn you - it's not cheap and if they are worn, you have to do all the valves and guides. Not just one or two.

I would suggest a diesel engine specialist - rather than the local spanner man !
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1991 L300 Delica Super Exceed