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Injector seals in!!

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Old Oct 16, 2011 | 10:41 PM
  #31  
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Originally Posted by hotroddsl
I'd defiantly look around the exh ports it shouldn't be tossing smoke on warm eng with high rpm! You may find a real oily port! Post back what you find!
Jim & fat Monty
your talking about where the manifold mates to the engine block correct? If so I know the passenger side is clean because I got the bottom bolts out of the valvecover through the fenderwell so the manifold was in my face.

I will check the driver side tomorrow morning for any oily residue

looks like all I did was buy someone elses headache

so the possibilities of this being just an injector are slim I'm guessing? I really hope I dont need a rebuilt head or engine
 
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Old Oct 16, 2011 | 11:01 PM
  #32  
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Even if the motor is bad, I find good used 7.3's all the time 8 to 1200 bucks and they usually are just fine! I put them in customers trucks all the time, and very rarely have any serious issues
Jim & fat Monty
 
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Old Oct 16, 2011 | 11:11 PM
  #33  
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I wouldnt mind as much about this if I was in a better financial situation, but currently im in the dumps

but one thing comes back to mind.. one of the reasons I replaced the injector o rings was that I had a oil stained fuel filter along with oil consumption&blue smoke

so I did the o rings and the smoke hasnt gotten better OR worse, so what can this tell me? even if the o rings are replaced now, could the fuel and oil still mix if there is an internal issue in the injector and go back to the fuel filter housing?

maybe I have more than one issue, a dead injector and bad cylinder head? sheeeshh
 
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Old Oct 16, 2011 | 11:23 PM
  #34  
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What does your new fuel filter look like? Iys possible to lose oil through the injectors, not common but it does happen on occasion, but I still want to see what you find on the manifolds before you go any farther, and check the bottom of the pass side that's why you will need an inspection mirror! You might want to then consider giving Clay a call and bouncing the idea of severly worn injectors being the problem! This goes back to the skipping a couple of oil changes scenario, ^^^^^he can send them out for bench testing, and that will tell good or bad! Period! How much oil are you using per 1000miles?
Jim & fat Monty
 
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Old Oct 16, 2011 | 11:44 PM
  #35  
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what does the crosshached area on the dipstick represent? 2 quarts maybe?

in 1000 miles I would say I go through close to a gallon of oil, not an easy 1k miles though I step on it quite a bit, I just did a oil change too, I havent even put on 1500 miles since I bought this truck, maybe 1100 so far

ill check fuel filter and manifolds tomorrow, thanks for all the help so far
 
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Old Oct 16, 2011 | 11:48 PM
  #36  
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Originally Posted by powerstroker100
Plus I have a issue when im coming to a stop and push in the clutch the rpms drop down to low and the truck catches itself and brings them back up to proper idle, not sure if the smoke and this is related, maybe its a fuel pressure problem?
Any consolation, my truck does the EXACT same thing, minus the smoke that is..(knock on wood). Fuel pressures' banging at 69psi, oil press around 12psi-ish when clutch is depressed, volts are 14v...bummer for your probs dude.
 
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Old Oct 16, 2011 | 11:58 PM
  #37  
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Wow that's a lot of oil in a thousand miles I'd do a compression check as well it would take a lot of worn injectors to pass that much oil!
 
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Old Oct 17, 2011 | 12:00 AM
  #38  
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Wouldnt a blowby test, somewhat represent a compression test, in a "budget' friendly way
 
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Old Oct 17, 2011 | 12:13 AM
  #39  
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Similar but not the same lack ofblow by does not nesseceraly mean all is well it just means nothing disasterous has occurred! Low compression can signify that rings are worn on a particular cylinder and that can point to the oil control ring that is failing to do it's job, if all cylinders are out of spec than that can explain the consumption and smoking issues!
Jim & fat Monty
 
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Old Oct 17, 2011 | 11:27 AM
  #40  
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could injector cups/sleeves cause this?
 
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Old Oct 17, 2011 | 11:55 AM
  #41  
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I just remembered something that might come into play, when I did the injector seals I put on the new copper washers, the old ones that came off were different than the new ones.

the old ones were flush on both sides of the washer

the new one had a indent on one side and the other side had a bulge out of it, I installed them with the indentation facing the solenoid on the injector so it was flush meaning that bulge side is whats touching the injector sleeve

could oil be going past there so something? because maybe I got the wrong copper washers? or installed them on the wrong side?

I looked at the manifolds and theres no oil anywhere
 
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Old Oct 17, 2011 | 12:48 PM
  #42  
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you installed the injector cups, correct?

Did you do ANYTHING to the injectors..ie...o-rings, tips..etc?
 
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Old Oct 17, 2011 | 01:58 PM
  #43  
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From: Monroe/Ellensburg, WA
Originally Posted by powerstroker100
I just remembered something that might come into play, when I did the injector seals I put on the new copper washers, the old ones that came off were different than the new ones.

the old ones were flush on both sides of the washer

the new one had a indent on one side and the other side had a bulge out of it, I installed them with the indentation facing the solenoid on the injector so it was flush meaning that bulge side is whats touching the injector sleeve

could oil be going past there so something? because maybe I got the wrong copper washers? or installed them on the wrong side?

I looked at the manifolds and theres no oil anywhere
The copper orings are crush washers... When you torque the injectors, that's what happens to them.
 
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Old Oct 17, 2011 | 05:19 PM
  #44  
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Originally Posted by timmyboy76
you installed the injector cups, correct?

Did you do ANYTHING to the injectors..ie...o-rings, tips..etc?
all I did was replace glowplugs and injector o rings with stock alliant rings..


cups were not replaced or pulled
 
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Old Oct 18, 2011 | 11:34 AM
  #45  
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Update, the truck now has a miss especially when cold and it is having a hard time starting now, cranks a while then skips/bucks and fires off with a ton of smoke as usual

Im starting to wonder if this could be the injectors again, maybe they did fail internally and are just firing oil straight into the combustion chamber
 
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