yes spray is what you want

 

I am pretty sure that two years of Diesel Technology hasn't taught me wrong.

Edit- John, the fuel vapor that i mentioned.. White smoke isnt actually "smoke". It is actually very small droplets of unburnt fuel that hadn't gotten a chance to burn.

 

pretty sure kris is right blue smoke=oil, it might be both oil and fuel related problem=injector bad, broken seal

 

don't think over 4 decades of working on them have taught me wrong and you have how many decades experience??

 

I'm kind of at a loss. I don't know what else to say.

 

Ahh i see now. It looked wierd going out stacks and i never knew why.

 

Arnt you both right? The way i understand (by what you both said) it is, that if there isnt enough fuel pressure, it wont atmomize all the way, and it will blow the little fuel drops into the cylinder that doesnt burn and it just goes back out the exhaust.

 

Tank is 1/4 full. Smoke in dark grey, possibly what you would call black. I think it smells like unburned fuel. Why would injectors make a ticking sound?

 

Ive had gassers with bad rings that BURN OIL, puff blue smoke and ive blown head gaskets at the track that BURN COOLANT and its white too.

 

Could it be poor HPOS?

 

If there is not enough fuel present in the cylinders of a diesel engine, it will simply stop running. I've ran my truck on virtually no fuel pressure by backing the regulator all the way out. Only for a few seconds because those injectors are expensive. Powerstrokes idle at ~500psi ICP, so you will always have at least 3500psi of Injection pressure, if the injectors are good that is more than enough at idle for good atomization. The reason diesels white smoke is because of heat. The heat burns the fuel in the cylinder, and without the heat, the fuel won't ignite. GoldenBoy, the HEUI injectors do make a clicking noise during normal operation, it is the solenoid on the top of the injector cycling on and off. However there is a term "fuel cackle" that is when air is entrained in the fuel system, where the injectors are forced to inject aeraeted fuel which they DO NOT like to do.

 

it's not atually the injector that makes the sound it is detonation,can be from a tick to as loud as a rod knocking

 

If anyone would've bothered to download the super model (PSDEM) and read the footnotes in the overview, they would've seen...

Why do diesel engines smoke?

Diesel engine smoke is caused by incomplete combustion. White smoke is caused by tiny droplets of unburned fuel resulting from engine misfiring at low temperature. This smoke should disappear as the engine warms up. Black smoke could be caused by a faulty injector, insufficient air and overloading and/or over-fueling the engine. Blue-gray smoke is the result of burning lubricating oil and is an indication the engine is in poor mechanical condition.

BTW, an newer more useful version is coming soon to a store near you!

 

I'll beg to differ with the blue smoke theory and don't care who wrote it a brand new motor incorectly tuned will smoke blue

BTW I didn't get thid from reading books or theories this is straight from the school of hard knocks or as some call it OJT bout 40 yrs of it

 

How does a new motor tuned incorrectly blow blue smoke? Im actually learning alot in this thread so i might as well ask questions to learn as much as possible lol.