Expelling oil out of the cylinder - Diesel Forum - TheDieselStop.com
'99 & up 7.3L Power Stroke Engine and Drivetrain Discussion of the '99 & up 7.3L Power Stroke diesel engine and drivetrain in the 1999-Up Super Duty trucks and Excursions. No gas engine discussion allowed except on transmissions and drivetrain that pertain to all models. Please confine discussion of topics in this forum to those items that are specific to the 7.3L Power Stroke engine.

 
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post #1 of 6 (permalink) Old 04-13-2018, 12:31 PM Thread Starter
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Question Expelling oil out of the cylinder

I am upgrading my injectors to single shot 1.5 from full force diesel. I have them pulled out and shipped off. Now I am unsure how to proceed. A You-tube video says I need to expel the oil out of my cylinders before I reinstall the injectors or it could ruin the engine. That sounds pretty serious so I want to do it right. Does anyone have any suggestions on how to do this?
I am getting ready to pull the glow plugs and try to turn the engine by hand. A video showed a guy doing this.
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post #2 of 6 (permalink) Old 04-13-2018, 01:16 PM
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That will work, even if you have the ejectors out turning it over by hand should get the oil out.

You could always get a turkey baster or a large syringe and suck what oil in in the cylinders when you get the piston to top dead center. But what little is left over after turning the engine over by hand will quickly be burnt off with no problems.

96 F250 PS XLT 4X4 long box, 5sp,4.10, manual hubs,pyro+boost guages, Dark Toumaline, add a leaf, Dale's TYMAR, and HX hose, downpipe, coolant filter, Luk clutch
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post #3 of 6 (permalink) Old 04-13-2018, 01:28 PM
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Quote:
Originally Posted by bstutz View Post
I am upgrading my injectors to single shot 1.5 from full force diesel. I have them pulled out and shipped off. Now I am unsure how to proceed. A You-tube video says I need to expel the oil out of my cylinders before I reinstall the injectors or it could ruin the engine. That sounds pretty serious so I want to do it right. Does anyone have any suggestions on how to do this?
I am getting ready to pull the glow plugs and try to turn the engine by hand. A video showed a guy doing this.
Things I learned while changing my injectors...


Pull the glow plugs out completely, (good time to test the glow plugs or just replace with new Motorcraft plugs. Do not use cheap parts store replacements.)
Place the valve covers and gaskets back on the heads and put a couple of bolts in finger tight.
Turn the engine over with a 1/2" ratchet and socket on the balancer bolt. Turn over 4-5 complete revolutions.
I also cranked mine with the starter, (jump the solenoid on the fender), after turning over by hand.


Don't bother putting the glow plugs back in before you put in the injectors.
After injectors are installed, jump the starter solenoid to crank the motor, (15 sec at a time), until the HPOP primes oil system.


I also installed the Riff Raff FRX on mine.
When I was ready to try to start the engine, we could feel air in the fuel return line the key was turned on.
We cycled the key a few times to let the fuel pump run until we no longer felt air in the return.


Make sure your batteries are charged good.


This "should" minimize your cranking cycles before she lights off.

"Slow White"
Early 99 7.3, 11/98 build, 6spd, X-cab XLT DRW 2WD, 145k and counting
Full Force 180/0 single shot injectors, TS 6 position chip
Riff Raff FRX, Riff Raff Banjos, Strictly Diesel HPX
4" DP and straight pipe exhaust, 6637 air filter
Hutch mod, CCV mod, coolant filter
South Bend 1944-60K-HD clutch
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post #4 of 6 (permalink) Old 04-13-2018, 01:39 PM Thread Starter
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Thanks. I have the glow plugs out now. I tested them and 4 of eight are bad. These were new injectors last summer. Is there anything that could burn out the left or right side and leave the other side undamaged?
I had the glow plugs piled together when I tested them so it is impossible to know which ones came out of which side.
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post #5 of 6 (permalink) Old 04-13-2018, 01:45 PM
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Are the glow plugs the Motorcraft ZD-11's or another brand?

Off brands usually burn out quite quickly.

96 F250 PS XLT 4X4 long box, 5sp,4.10, manual hubs,pyro+boost guages, Dark Toumaline, add a leaf, Dale's TYMAR, and HX hose, downpipe, coolant filter, Luk clutch
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post #6 of 6 (permalink) Old 04-13-2018, 01:59 PM Thread Starter
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I don't recall , but I thought I bought motocraft
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