Year old injectors bad?
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Year old injectors bad?
About a year ago I had all 8 injectors rebuilt to 160/80 by rosewood diesel. Also did head studs, valve springs, adrinaline hpop, s366, and irate diesel fuel system. I've been running a php hydra with tony wildman tunes and no problems for about 6-7k miles a few weeks ago I started getting lots of white smoke on cold starts that would go away when the truck warmed up. Checked my gpr and glow plugs and all were within spec. Did a buzz test and cylinders 4 and 6 were much quieter than the others; however, my AE doesn't flag them on a CCT. I removed #4 and found the injector was not seated properly 
rookie mistake I had put the wrong head stud in that spot and the injector hold down had been hitting it. I then removed #8 which had been buzzing good and plugged the #4 injector in that hole and it is still buzzing low. Bad injector right? My concern is what caused the injector to fail so early? Could it have been damaged from being installed improperly?
rookie mistake I had put the wrong head stud in that spot and the injector hold down had been hitting it. I then removed #8 which had been buzzing good and plugged the #4 injector in that hole and it is still buzzing low. Bad injector right? My concern is what caused the injector to fail so early? Could it have been damaged from being installed improperly?
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You should pull all of your injectors out and inspect them all. If you didn't install one of the correctly there may be others. I understand the stud was in the way, just saying it might help to make sure.
However many you find that look like that one in your picture, with carbon on the bottom and the copper washer completely gone, you should send them back in to us for a nozzle replacement. That much extra fuel super heats the steel parts (for lack of a better description) and I will bet anything many of the internal parts near the nozzle are dark blue from the excessive heat. These will fail prematurely as will the nozzle from this heat fatigue, and all of these parts should be replaced.
Now, with the copper washers melted away, and the lowest o-ring disintegrating from the fuel, heat, etc, all that carbon is getting shot right back into the fuel system. If those chunks got into another nozzle that could plug it up causing a miss, poor running, etc.
Let us know if we can do anything to help out.
However many you find that look like that one in your picture, with carbon on the bottom and the copper washer completely gone, you should send them back in to us for a nozzle replacement. That much extra fuel super heats the steel parts (for lack of a better description) and I will bet anything many of the internal parts near the nozzle are dark blue from the excessive heat. These will fail prematurely as will the nozzle from this heat fatigue, and all of these parts should be replaced.
Now, with the copper washers melted away, and the lowest o-ring disintegrating from the fuel, heat, etc, all that carbon is getting shot right back into the fuel system. If those chunks got into another nozzle that could plug it up causing a miss, poor running, etc.
Let us know if we can do anything to help out.
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From: evansville in
You should pull all of your injectors out and inspect them all. If you didn't install one of the correctly there may be others. I understand the stud was in the way, just saying it might help to make sure.
However many you find that look like that one in your picture, with carbon on the bottom and the copper washer completely gone, you should send them back in to us for a nozzle replacement. That much extra fuel super heats the steel parts (for lack of a better description) and I will bet anything many of the internal parts near the nozzle are dark blue from the excessive heat. These will fail prematurely as will the nozzle from this heat fatigue, and all of these parts should be replaced.
Now, with the copper washers melted away, and the lowest o-ring disintegrating from the fuel, heat, etc, all that carbon is getting shot right back into the fuel system. If those chunks got into another nozzle that could plug it up causing a miss, poor running, etc.
Let us know if we can do anything to help out.
However many you find that look like that one in your picture, with carbon on the bottom and the copper washer completely gone, you should send them back in to us for a nozzle replacement. That much extra fuel super heats the steel parts (for lack of a better description) and I will bet anything many of the internal parts near the nozzle are dark blue from the excessive heat. These will fail prematurely as will the nozzle from this heat fatigue, and all of these parts should be replaced.
Now, with the copper washers melted away, and the lowest o-ring disintegrating from the fuel, heat, etc, all that carbon is getting shot right back into the fuel system. If those chunks got into another nozzle that could plug it up causing a miss, poor running, etc.
Let us know if we can do anything to help out.
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