80 Series Diesel Maintenance

Stan,

At 100,000 kms I would be lookoing at an injector service. My Cruisers have all had their injectors done at 60,000 kms, and although they were not blowing smoke, there was a noticable difference in performance before an after.

Stan , you should be able to cover lot more kms without major injector service . There are other signs of injector trouble such as rough idling , loss of power etc. I had great resoults with NYLON Diesel injector cleaner . I use it every 7000-10.000 km and my Cruiser is still going as strong as ever and no smoke at all . You can check the timing and valve clearance , it doen't hurt .

Stan, Goran is right, you should be able to go for longer withoout a major service. However, you should get the spray patterns checked at more frequent intervals. Doesn't cost much and a clean at the same time keeps the diesel perfroming like new. As for usin injector cleaning things......I'll leave that up to you, but I am very wary of $20 addatives in my $10,000 km motor.

1HZ's will tolerate bad injectorsquite a bit before smoking and giving really bad economy or low power. This doesn't mean they are in good condition.

Pulling them and having them checked is a lot cheaper than a cracked head which is the likely outcome on a 1HZ from poor spray patterns or bad tuning.

Ian B

For an answer on injector servicing read the article in June issue of 4x4 Australia, p. 115. By the time you get to p. 118 you'll wonder why you left it so long.

Stan. My 80 series reached 130,000 ks when I met a fuel injection shop owner who said the injectors of any diesel engine with indirect injection would need servicing at 100,000ks and that mine were probably already giving trouble but I coudn't notice it. Despite having no apparant problems, I took his advice and guess what....there was nothing wrong with them. I've used Fleetguard filters in the earthmoving game for 20 years and never had any problems. Happy motoring!