Pajero Owners Club of South Africa

I just bought a 1998 Pajero 2.8TD SWB, the motor and turbo were recently overhauled, the problem is lots of white smoke when accelerating and flat spots, worst of all it only does 500km to a full tank.

The worst fuel consumption is when I am on the freeway doing anything more than 100kmph, it almost gets 600km to a tank when town driving but on the freeway you can see the fuel gauge moving.

I used a bottle of Spanjard fuel injector cleaner which made a big difference with the flat spots and smoking but it is still not right, I have changed the fuel filter/oil filter/air filter and an oil change. It only uses about a litre of engine oil every 4,000 km.

I have a feeling the guys who rebuilt the motor(many bolts missing or not tight) did not set the timing on the fuel injector pump properly, I searched the forums for details on setting the pump up, but am not sure which bolts to loosen. The bolts that hold the flange to the housing, or the bolts that hold the fuel pump to the flange ?

What fuel consumption to other 2.8TD owners get on the freeway at a steady 120kmph ?

Thank in advance

Paul

What fuel consumption to other 2.8TD owners get on the freeway at a steady 120kmph ?

I also have a 1998 SWB, and I get about 8km/l - but then I have the 4-speed auto box

I drive my LWB rustig, never more than 115km/h, never revving above 3000, except 1st and 2nd gear to ensure revs stay above 2000rpm when laden. When hitting the road for vacation, we are really laden, but still manage to get around 9km/l. Last week going to Kgalagadi doing 110km/h with the RTT, I could only manage 8.3km/l over 3200kms traveled. I use Delo400 and never top up between 7500km oil changes. I use 50ppm when ever I can, and add 250ml 2stroke every second/third tank. Wheel pressure is 230 all round.

That's my experience

Hi Beachcat, White smoke is caused by one of three things:
1. Incorrect diesel pump timing. could be your problem seeing as its been worked on.
2. Damaged or worn injectors. (The nozzles can be replaced and re-spec'd)
3. Low compression (Which you fixed with the overhaul)

Check the pump timing first. take a look in the technical libary for the manual and the instructions. If the timming is OK, Take the injectors to a Bosch Diesel Centre and have them replace the nozzles.

Wilddog

There are two "smokey" problems with a diesel engine. Black smoke - like when accelerating up a hill fairly laden - is a symptom of unburned excessive fuel in the combustion process. This could be timing, poor injector atomisation or worn injector springs - same same. White smoke is lubrication oil burning in the combustion chamber with diesel and also causing incomplete combustion of the lubricating oil. White smoke indicates worn valve guides - sucking oil past the valve guide on the aspiration stroke, or worn piston oil scraper ring (the bottom ring on the piston). Both these allow more than acceptable amount of oil to past into the combustion chamber and mix with the diesel fuel to create an unsatisfactory fuel source resulting in white smoke.

White smoke requires a compression test both dry and wet test to check the difference. Essentially white smoke means a little more money needs to be spent than black smoke.

Good luck.