#3 Fuel Injector Oil Deflector seating - PowerStrokeNation : Ford Powerstroke Diesel Forum
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post #1 of 9 (permalink) Old 05-08-2017, 09:45 PM Thread Starter
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#3 Fuel Injector Oil Deflector seating

Is there a connection between an improperly seated oil deflector and oil coming from the exhaust? I've already suspected the injector to be improperly function but when the truck is running each spout, save for #3, spits oil at a similar rate. Instead #3 seems to lazily pour out in spurts and run down onto the inboard injector mount bolt.

this is for a 1996 ford f350 7.3
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post #2 of 9 (permalink) Old 05-09-2017, 12:58 PM
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Re: #3 Fuel Injector Oil Deflector seating

oil dripping from the oil slinger is not going to get past the injector O rings.....sounds like you just have a lazy/bad injector
the oil slinger simply re directs the oil downward that's its whole purpose in life it has nothing to do with oil pressure and no the discharged oil will not go around your O rings or out the exhaust.

1997 CCFB 7.3, ZF5, 4x4, 4.10, baby swamps, TS6, E99 spyder, RiffRaff pipes, 6.0 FMIC, RSK, 315 toyo at
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2001 Excursion 7.3, auto, 4x4, 3.73, 6" Suspension lift, 37" Dick Cepeks
2000 E350 7.3, auto 2wd, 3.73, planning a TTB 4x4 conversion
21.9 liter family
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post #3 of 9 (permalink) Old 05-09-2017, 04:34 PM Thread Starter
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Re: #3 Fuel Injector Oil Deflector seating

thanks for the clarification, think im overthinking the issue. since the maintenance i did, in the last post, its been a hard to start, takes a bit. it did however sound slightly better on idle after i switched from rear to front tank. its like the oil is too thick or something. smokes bad on start and gets worse as i drive.

think draining the oil and starting with fresh might help? im trying to rationalize where all the oil being burned is leaking from, i dont notice any more dirt/sludge in the low valley.

1996 F350 7.3
2004 F250 6.0
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post #4 of 9 (permalink) Old 05-09-2017, 05:25 PM
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Re: #3 Fuel Injector Oil Deflector seating

Okay so you have oil in your exhaust or is it fuel? Oil can be going through the turbo

Fuel and oil can be going through injectors or O rings

test your turbo shaft for play
check your engine for blowby

1997 CCFB 7.3, ZF5, 4x4, 4.10, baby swamps, TS6, E99 spyder, RiffRaff pipes, 6.0 FMIC, RSK, 315 toyo at
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2001 Excursion 7.3, auto, 4x4, 3.73, 6" Suspension lift, 37" Dick Cepeks
2000 E350 7.3, auto 2wd, 3.73, planning a TTB 4x4 conversion
21.9 liter family
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post #5 of 9 (permalink) Old 05-09-2017, 07:10 PM Thread Starter
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Re: #3 Fuel Injector Oil Deflector seating

oil in the exhaust. pipe gets wet after i let it run for a bit and is real dark. let me ask you a question about the injector, i appreciate the help by the way, if im wanting to swap an injector before i remove it do i need to open the drain plugs under the VC AND empty the hpop or i am i totally misinformed?

1996 F350 7.3
2004 F250 6.0
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post #6 of 9 (permalink) Old 05-09-2017, 10:20 PM
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Re: #3 Fuel Injector Oil Deflector seating

yes
Before you remove the injector you want to remove the rearmost drain plug under the valve cover. These are allen wrench, this will drain the oil from the oil rail on the head...not the Hpop reservoir
Let it drain until it stops, this way the oil is returned to the crankcase
Now when you pull the injector the entire oil rail will not bleed down into your combustion chamber
Even with it drained when you unseat the injector some oil and fuel is going to make it into the cylinder, it is best to suck it out with a syringe and 1/8" clear tubing. Or you can install the valve cover and bump the starter, or turn the engine over by hand a few revolutions ...I have never done it this way I have always used the syringe and it has worked perfectly for me.

After you evacuate the fluid and install your new injector/O rings and re install the drain plug you will want to hand fill the oil rail, I use the same syringe and fill the oil rail from the front fill port plug (on top of the head, 5/8" plug and O ring)
This makes the first start up much easier on the starter and Hpop system.

Swamps diesel has some excellent instructions for HEUI injector service on the 7.3:
http://16x1p531pcnxjpi9p2ewt95n.wpen...stallation.pdf
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1997 CCFB 7.3, ZF5, 4x4, 4.10, baby swamps, TS6, E99 spyder, RiffRaff pipes, 6.0 FMIC, RSK, 315 toyo at
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2001 Excursion 7.3, auto, 4x4, 3.73, 6" Suspension lift, 37" Dick Cepeks
2000 E350 7.3, auto 2wd, 3.73, planning a TTB 4x4 conversion
21.9 liter family
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post #7 of 9 (permalink) Old 05-10-2017, 01:08 AM Thread Starter
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Re: #3 Fuel Injector Oil Deflector seating

nice. solid post. im going to order a few sets of rings just in case since im already inside, but hypothetically speaking if the injector o rings and assy look healthy would it be a waste of time to try to swap and see if the my hard idle follows a specific injector? just trying to make a calculated risk here, or at least cost to benefit ratio.

1996 F350 7.3
2004 F250 6.0
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post #8 of 9 (permalink) Old 05-10-2017, 01:44 PM
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Re: #3 Fuel Injector Oil Deflector seating

Makes perfect sense to me
If injector #3 is spitting 1/3 the oil of the other injectors I would swap it with another hole and see if it persists, if injector 3 continues to drip oil even in another spot and the injector you swap it wit works fine when in hole #3 then it sounds like you need a new injector.

Injector O rings are cheap enough for testing

1997 CCFB 7.3, ZF5, 4x4, 4.10, baby swamps, TS6, E99 spyder, RiffRaff pipes, 6.0 FMIC, RSK, 315 toyo at
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2001 Excursion 7.3, auto, 4x4, 3.73, 6" Suspension lift, 37" Dick Cepeks
2000 E350 7.3, auto 2wd, 3.73, planning a TTB 4x4 conversion
21.9 liter family
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post #9 of 9 (permalink) Old 05-10-2017, 10:47 PM Thread Starter
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Re: #3 Fuel Injector Oil Deflector seating

so upon starting the truck with both vc off i noticed about 2.5 to 4 minutes after the truck was running the passenger side started to spill oil over. this hasnt happened before. i suppose its possible something is blocking the drain but i saw nothing before i started. any idea what this is indicative of?

the truck is on an incline, engine up top, but nothing extreme, the drivers side did not overflow.

1996 F350 7.3
2004 F250 6.0

Last edited by turbo_loco; 05-10-2017 at 11:16 PM. Reason: pertinent information
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