Hi all!

I have a 23 yo Pajero diesel. The engine is not running smooth I think because it needs some work done. Also it gives smoke with starting and when using the turbo. Does anyone know a real dieselexpert to look at the engine and listen to it and, of course, could repair it?

Your help is much appreciated!

Has the maintenance been kept up ?? Fuel filter, air filter, diesel fuel cleaner added regularily ?? Is injector pump pressure within spec ??

Once you are sure of the basics, and they are ruled out as the problem, you can look deeper.

As my daddy used to say re: troubleshooting - KISS - keep it simple stupid !!

Said to me, not meant as an insult to you.

Has the maintenance been kept up ?? Fuel filter, air filter, diesel fuel cleaner added regularily ?? Is injector pump pressure within spec ??

Once you are sure of the basics, and they are ruled out as the problem, you can look deeper.

As my daddy used to say re: troubleshooting - KISS - keep it simple stupid !!

Said to me, not meant as an insult to you.

Yes everything has been taking care of by a very good mechanic after I bought the car. Filter changes etc. However he says that I have to live with the smoke. Believe me, I spended a lot of money to get this beautiful car in a good condition. I use the V-power diesel from Shell and put in another cleaner every empty tank for three times. A little bit less smoke. But as soon as I start the car, a lot of smoke is coming out. Same when I use the turbo. Normall driving is almost smokeless.

Sounds like something... possibly expensive... is allowing diesel to leak into the cylinders when it is not in use.

When you start the engine the excess fuel burns off with insufficient oxygen for proper combustion which causes the smoke.

Once the excess fuel is cleared it runs normally.

You say that it makes more smoke when you use the turbo. I take it that you mean under hard acceleration ? Is it black smoke ?

I think that your engine - being 23 years old - is not an electronic diesel ? No computer managed engine ?

replace injectors!

Has the maintenance been kept up ?? Fuel filter, air filter, diesel fuel cleaner added regularily ?? Is injector pump pressure within spec ??

Once you are sure of the basics, and they are ruled out as the problem, you can look deeper.

As my daddy used to say re: troubleshooting - KISS - keep it simple stupid !!

Said to me, not meant as an insult to you.

To the Op, does your mechanic have the ability to flow & pressure test diesel injectors?

Sent from my SM-T211 using Tapatalk

The engine is not running smooth I think because it needs some work done. Also it gives smoke with starting and when using the turbo.

+1 on injectors. A lot of older diesels will smoke when first started until the engine warms up to help combustion. Injectors or slightly worn piston rings can cause them to smoke when worked hard such as using the turbo. Injectors can cause it to run rough. On a rig that old I'd replace the injectors and consider it routine maintenance.

To the Op, does your mechanic have the ability to flow & pressure test diesel injectors?

Sent from my SM-T211 using Tapat

No, that is why I am looking for a diesel expert. He is a very good mechanic by the way but misses the equipment to really check the engine.

I went to my mechanic today and asked him. He agreed with the injector change that it might help. He warned me however that it will be expensive, around 8.000 Thb. Is that reasonable?

You say that it makes more smoke when you use the turbo. I take it that you mean under hard acceleration ? Is it black smoke ?

I think that your engine - being 23 years old - is not an electronic diesel ? No computer managed engine ?

Yes, yes and yes, no computer.

I went to my mechanic today and asked him. He agreed with the injector change that it might help. He warned me however that it will be expensive, around 8.000 Thb. Is that reasonable?

Hopefully I have your model right. Saw these new injectors on eBay for just over 8,000 baht. Price seems about right.: LINK

Yes, yes and yes, no computer.

In that case, seeing as how there is a slight chance of having a diesel shop near by who can pressure test the injector pump, I would replace injectors as posters before me have said.

8000 baht sounds OK - see if you can find out if they are new or exchange injectors (rebuilt)

And, if rebuilt, see if you can source the supplier that your mechanic uses to buy them. This may allow you to find a shop which does injector pump work. Not easy as you should have a 'clean room' for this type of work.

Then, if new injectors fail to completely solve your problem, you can dive deeper.

My car is back from my mechanic, the one I always use. He did not have the equipment to check the fuel pump but a friend has. So he repaired the injectors anf checked the pump. After this repair the engine is running like never before. Even in the 5th gear it is very powerfull.

No more smoke!

Thank you all for your advises!