Have you experienced this?
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Cargo Master
Joined: Mar 2019
Posts: 2,907
Likes: 788
From: Kinnula,Finland
Have you experienced this?
Soot within 10 meters
Was plugged in like 3 hours,decided to start with no glowplugs(i have manual GPs).
Starter spinning maybe 5 secs nothing,then power to glow plugs maybe 5 secs and BAM!
205cc/80% injectors.
I have experienced small puffs with stock injectors in this van but never anything like this,in any vehicle.
Cargo Master
Joined: Nov 2017
Posts: 3,096
Likes: 534
From: Rock Hill, SC
Does the soot look like small solid flakes, or confetti?
I get this on my stock 7.3 on colder start ups, say in the 40's (F) or lower.
While letting it idle sometimes it will blow that confetti soot, not always, but in the colder temps. Seems to be either once the turbo starts spinning, and or the EBV opens.
Nothing like that, I'd say like a handful of confetti is all I get. In addition I never have un-burned soot while normal or hard driving too.
I get this on my stock 7.3 on colder start ups, say in the 40's (F) or lower.
While letting it idle sometimes it will blow that confetti soot, not always, but in the colder temps. Seems to be either once the turbo starts spinning, and or the EBV opens.
Nothing like that, I'd say like a handful of confetti is all I get. In addition I never have un-burned soot while normal or hard driving too.
Hotshot
Joined: Mar 2014
Posts: 10,750
Likes: 1,065
From: Douglassville, PA
I figured out where I've seen that before...years ago cars and trucks used to have chokes on them and when you first started them up in the winter and there was snow on the ground that would happen. Does it improve or stop altogether if you exercise your glow plugs well before startup?
Cargo Master
Joined: Aug 2003
Posts: 2,332
Likes: 442
From: Eastern Washington
Always use your glow plugs on a cold start. I would let them cook for at least a minute before cranking if below freezing.
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Cargo Master
Joined: Mar 2019
Posts: 2,907
Likes: 788
From: Kinnula,Finland
To be more precise,i wasnt starting while hitting the GPs.
GPs burned the fuel in cylinder that had open exhaust valve,and shooted like shotgun from exhaust.
It was all types of soot,my EBPV is deleted.
Works perfectly normal when activating GPs before start.
Well,just wanted to try it with no GPs,it was plugged in for three hours,in not so cold temp..
I consider myself as an experienced "cold starter",been hassling over 20 years with vehicles,heavy machinery,etc..
It was a mistake to hit GPs,right after starting..
My main consern is that do i have a pissing injector/nozzle...
Is it possible that 80% nozzle can normally inject that much fuel in 5 seconds or so..?
GPs burned the fuel in cylinder that had open exhaust valve,and shooted like shotgun from exhaust.
It was all types of soot,my EBPV is deleted.
Works perfectly normal when activating GPs before start.
Well,just wanted to try it with no GPs,it was plugged in for three hours,in not so cold temp..
I consider myself as an experienced "cold starter",been hassling over 20 years with vehicles,heavy machinery,etc..
It was a mistake to hit GPs,right after starting..
My main consern is that do i have a pissing injector/nozzle...
Is it possible that 80% nozzle can normally inject that much fuel in 5 seconds or so..?
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Hotshot
Joined: Dec 2012
Posts: 11,270
Likes: 1,654
From: Las Cruces New Mexico
They glow cherry red when activated so yes, they can light gas even diesel.
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Cargo Master
Joined: Mar 2019
Posts: 2,907
Likes: 788
From: Kinnula,Finland
Yes,i know how GP system works in a 7.3
I have manual GPs,i activate them after start sometimes to smoothen it out.
It shooted that crap while activating GPs,no starting,engine not running.
I have manual GPs,i activate them after start sometimes to smoothen it out.
It shooted that crap while activating GPs,no starting,engine not running.
Hotshot
Joined: Mar 2014
Posts: 10,750
Likes: 1,065
From: Douglassville, PA
Oh, so you hit the afterburners, now it's sinking in. It sounds like the engine was running when you did that? If so that kind of surprises me. Even if it wasn't running that kind of surprises me too. And, yes, GP's get plenty hot enough to light #2 fuel oil, check youtube for videos on them, they get a lot hotter than you would expect. At least some smoker grills use them for their igniters.
If I crank on mine in the cold without waiting for the GP's and it doesn't start then turn the key on they will ignite the fuel and make a pop in there. One day I'm going to get my GoPro out and video it for yas.
If I crank on mine in the cold without waiting for the GP's and it doesn't start then turn the key on they will ignite the fuel and make a pop in there. One day I'm going to get my GoPro out and video it for yas.
Hotshot
Joined: Dec 2012
Posts: 11,270
Likes: 1,654
From: Las Cruces New Mexico
From my understanding and from my conclusion, the cylinders that don't ignite the fuel when being cranked, still have atomized fuel lingering in the cylinder bore and if that piston is @TDC the glow plug ignites the atomized fuel without ever being cranked thus the backfire. But my truck never threw anything from the exhaust as yours did.
