| Author |
Message |
rodney (Invaders)
Rating: N/A
Votes: 0 (Vote!) | | Posted on Wednesday, June 07, 2006 - 11:34 pm: | |
Hi we had our bus repaired had new injectors put on and the rack done. But bus is smoking very bad any time u get on it take off and on hwy. The guy that did the work on it said that we had bad diesel and messed up to sets of injectors.But he said maybe it needs a tune up but others dont agree saying that we might should check check valve to the return line in tank could be stopped up are the guy didnt set the rack right or he put oversized injectors in the bus.Please contact us with any answers thank you email thenewsoulinvaders@yahoo.com |
John MC9
Rating: N/A
Votes: 0 (Vote!) | | Posted on Thursday, June 08, 2006 - 12:22 am: | |
-had new injectors put on and the rack done.
-bus is smoking very bad any time u get on it take off and on hwy.
-The guy that did the work on it said that we had bad diesel
-he said maybe it needs a tune up
A "tune-up" is a rack set.
Bad diesel fuel can equate to smoke.
Too large injectors can lead to heavy smoke on take-off...
Getting "on it" on take off, will result in black smoke.
It's not a race car, it's a 2 stroke diesel trying to move an
11 ton vehicle.
Go lighter on the pedal on take-off, and see if conditions improve. |
Brian Brown (Blue_velvet)
Rating: N/A
Votes: 0 (Vote!) | | Posted on Thursday, June 08, 2006 - 2:18 am: | |
Color of smoke is important. Black smoke is unburnt fuel, and probably the easiest to correct (follow John's driving advice, have smaller injectors put in, re-run rack, etc.).
White smoke at normal temps. could be coolant in the combustion chambers or bad compression. Either one not good.
Blue smoke is oil getting past the rings. Not good, either.
HTH,
bb |
don (Bottomacher)
Rating: N/A
Votes: 0 (Vote!) | | Posted on Thursday, June 08, 2006 - 9:22 am: | |
Where are you located? |
JR
Rating: N/A
Votes: 0 (Vote!) | | Posted on Thursday, June 08, 2006 - 9:02 pm: | |
What sort of symptoms were you trying to correct with the installation of new injectors? Does the engine run well otherwise? You may have the wrong injectors (to be fair, he may have replaced with similar, but wrong injectors), or the rack isn't set correctly. Sounds like the guy doing the work may be a little bit "shady" too...this is based on his assumption that you ruined a new set of injectors with bad fuel. If you have both original fuel filters in place, and the bus will reach highway speed, your fuel is not likely to be at fault for the failure of new injectors. He's essentially "tuned up" the engine with the work described...if he did it. You can pull the curb side valve cover easily and see what you have for injectors. You may find your original injectors somehow slipped back into the engine...maybe not. A small amount of black smoke may not be a problem...but, it's washing down the cylinders, and should be avoided. Making MUIs smoke a little when run hard used to be the hot trick, and an indication that the fuel delivery was increased to the point that the engine couldn't quite use it all..equals black smoke. Describe the rest of the story, history of repairs, symptoms, etc. Good luck, JR |
David Hartley (Drdave)
Rating: N/A
Votes: 0 (Vote!) | | Posted on Thursday, June 08, 2006 - 10:28 pm: | |
Don't forget the air cleaner, Is it in good shape?
a defective turbo will also cause excess smoke due to not enough air getting into the engine.
Just some ideas here.... |
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