Werid sight today..what was it

[XcumminsX]

Well today i was coming home from work and im coming down the highway and all of a sudden i see WHITE SMOKE from about 1/2 mile away and as i get closer i realize its coming out of a semi's exhaust. This white smoke was so dense and it was just pouring out SO much i couldnt beleive it. He was on the shoulder going pretty slow. I pulled off the highway and was watching him go... Then i had to keep going so i couldnt see what happen. That was something ive never seen in my life and ive grown up with semis (lived near highways and live near the biggest industrial park in the country) WHat was goin on anyone know?



Nick

 

[Wayno]

Well I would guess water in the exhaust , like a blown head gasket or a crack head but then again he could of been running Purinox for fuel and the truck had been sitting for a while .

 

[XcumminsX]

WOW. Ive never seen a big newer kenworth with something like that happen.

 

[ToolManTimTaylor]

On my last trip up to canada when it was -37 degrees just standing there I began to notice something not everyone notices. Semi's , me , psd's you name it all spewing white steam (Much like a gasser does when its chilly out)



It was so cold that you actualy were able to see what little condensation was in our diesel exhaust. It was kinda cool seeing logging rigs with stacks spewing white with a poof of black between shifts. kinda like feight trains.

 

[CPjMech]

More than likely it prob lost an injector tip. Then there is nothing to keep the fuel out of the cyl and there is no timing at all, which can cause white, gray or black smoke. Seems to be getting more common now that injector firing PSI is around 25,000 PSI.

 

[Ray Torresdal]

smoke

Something else that will cause lots of smoke, and a huge mess, is if the bearings go out of the turbo - high flow of oil straight out the stack. Something on the order of a couple gallons every 50 or 100 miles when it happened to us years ago.



Ray

 

[XcumminsX]

Yeah this wasnt the smoke you see coming out of gassers. . it was so dense you couldnt see threw it at all. I still am in aww i wish i had my camera on me.



Nick

 

[Rescue Ram]

I would bet a blown turbo. We get 911 calls on them every now and again where a passer by mistakenly thinks it is on fire. Could be injectors, too...

Brian

 

[CPjMech]

Speaking of calling 911, we started a CAT 3516 gen set that has been sitting for a couple of months today. It was in stand-by mode, so when it started it went right to 1800rpm to go online. It let out a huge mushroom cloud of white smoke and raw fuel, a passing car called the fire dept, they came and were not pleased for some reason.

 

[nickleinonen]

Originally posted by CPjMech

Speaking of calling 911, we started a CAT 3516 gen set that has been sitting for a couple of months today. It was in stand-by mode, so when it started it went right to 1800rpm to go online. It let out a huge mushroom cloud of white smoke and raw fuel, a passing car called the fire dept, they came and were not pleased for some reason.

who ends up footing the bill for that then eh? we had something similar happen at work [but i never heard the full details] we were dead cylinder testing a ge engine in the yard, and it had 3 bad order injection pumps that were going full fuel all the time. the stack is about 12"x24" and there was a solid plume of black that size [&bigger] going up close to 50 feet. someone outside driving by called the fire department and no one knew anything about it until the fire department showed up... i never did hear the full story, but i did see the smoke show for a while before going back to work. it was :-laf

 

[Scot]

It is part of the job. We sent a full alarm to Super Shops several years ago for what turned to be a smokey burnout on their front porch!

 

[CPjMech]

Most of the smoke was cleared out by the time FD showed up. So far we have not been fined and we set the fire alarm off out in the dyno on a weekly basis in the summer time. (bad heat sensor design in the roof that the FD said we are required to have) I just tell them that is another free dyno we owe the FD.

 

[BV]

The 7. 3 out of my 92 f350 left the dealership in a white/gray cloud so thick you could not see through it. It ended up having a 1" crack in the right rear cylinder wall.

 

[Kalaehina]

Remeber the old movie "Duel"? That truck only spewed white smoke too. Really dense smoke. Wonder what was going on there.