AnswerID: 21613 Submitted: Monday, Jun 02, 2003 at 15:07
Old Jack
replied:
Dear Trevor,
our work's 3l jackaroo is a 2000 model with 74000klm on the clock, under hard accelaration it does produce some black smoke, under gentle -moderate accelartion it produces nill smoke, has been like this from day one, some smoke under hard accelaration is normal, but not lots of smoke. going back to basics with any diesel motor:-
has it got plenty of fresh Air? restricterd air filters make any diesel smokey has it got a
snorkel fitted out of curiosity?
restricted fuel filters can cause problms too..
as for injectors at 45000k possibly a problem though at this mileage should not be, once again get Profesional advice from a repuitable diesel workshop before fronting up to the dealer.
be carefull with the use of fuel addatives & injection cleaners, over use of some of these can cause more problems than they fix as the nossels can become scored by over use, leading to injectors dribble(this applys also for petrol engines as well). was a convert to using addatives every fourth tank until we changed fuel suppliers.
as someone else put check the fuel you are buying as well, some burn cleaner than others if you buy from one of the big three all the time this should not be a problem.
diesel exhaust smoke levels is a subjective thing, with the High pressure injection on these jacks smoke levels should be very low, problem is we get low grade diesel here in oz and until we go to european level low sulphur fuel a lot of these motors will continue to exhibite some exhaust smoke, oh and low sulphur fuel is not a new thing in France they have had low sulpher fuel and minimum 5% bio- diesel since 1972 ( they use rappe/canola oil esterized) the 5% bio diesel reduces the smoke level, lubricates the injection pump in place of the sulphur, they found that 1% was sufficient in place of the sulphur to prevent pump damage, at 5% total emmisions where reduced. also they are smart they made a market for there own oil seed growers as they legislated the minimum 5%. we are now 30 years behind the time with fuel!
anyway good luck & happy motoring
Reply 3 of 4
FollowupID: 14130 Submitted:
Monday, Jun 02, 2003 at 21:32
Trevor posted:
Thanks for the info Old Jack,
Yes the amount of smoke is exactly as you describe - if you drive it with a feather foot it runs clean but with plenty of torque available it seems a shame to feel guilty about pollution every time you want to give it a bootfull.
The air filter is clean (changed 5000k ago and only city running) but it was no different when it was first changed. There is no
snorkel fitted - not many creeks here in
Perth (havent had a decent rain in years)
Fuel consumption is normal 12l/100km at highway speed (auto trans)
so I think the injectors are ok but Ijust think that a modern engine such as this should blow almost no smoke.
FollowUp 1 of 1
