Injector replacement help...
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Senior User
Joined: Jul 2005
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From: Memphis, TN
Injector replacement help...
I've read a couple of good threads and write ups on this. I know the basics. I have a couple of clarifying questions.
First...when discussing how to remove oil from cylinder "cranking the engine over by hand / breaker bar" what does this mean and exactly how it is done. Someone even mentioned a 23mm socket was required.
Second...most articles mentioned re-filling the oil rails and/or re-filling the HPOP. How is this done?
I'm only replacing a single injector (#2 in the front) so I'm not sure how much or any of these things I should do. Was wondering if pulling the injector and sucking out the oil with a pump/syringe/spritzer straw would work good enough.
First...when discussing how to remove oil from cylinder "cranking the engine over by hand / breaker bar" what does this mean and exactly how it is done. Someone even mentioned a 23mm socket was required.
Second...most articles mentioned re-filling the oil rails and/or re-filling the HPOP. How is this done?
I'm only replacing a single injector (#2 in the front) so I'm not sure how much or any of these things I should do. Was wondering if pulling the injector and sucking out the oil with a pump/syringe/spritzer straw would work good enough.
Post Fiend
Joined: Sep 2006
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From: Millbrook Alabama
Originally Posted by aocabrown
I've read a couple of good threads and write ups on this. I know the basics. I have a couple of clarifying questions.
First...when discussing how to remove oil from cylinder "cranking the engine over by hand / breaker bar" what does this mean and exactly how it is done. Someone even mentioned a 23mm socket was required.
Second...most articles mentioned re-filling the oil rails and/or re-filling the HPOP. How is this done?
I'm only replacing a single injector (#2 in the front) so I'm not sure how much or any of these things I should do. Was wondering if pulling the injector and sucking out the oil with a pump/syringe/spritzer straw would work good enough.
First...when discussing how to remove oil from cylinder "cranking the engine over by hand / breaker bar" what does this mean and exactly how it is done. Someone even mentioned a 23mm socket was required.
Second...most articles mentioned re-filling the oil rails and/or re-filling the HPOP. How is this done?
I'm only replacing a single injector (#2 in the front) so I'm not sure how much or any of these things I should do. Was wondering if pulling the injector and sucking out the oil with a pump/syringe/spritzer straw would work good enough.
2. oil level plug on HPOP resevior (top) remove and check that oil is not mor than 1 inch from top. crank over engine with CPS unplugged (after evacuating oil from cylinder that injector was replaced on)
3. you should be fine with this method, since you are only doing one injector. if you are quick about it there should not be much oil.
Post Fiend
Joined: Feb 2006
Posts: 11,892
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From: Middle Tennessee
Hmmm, I'll skip the questions and answer the post. Pull the rear oil rail plug located inside the VCs. It is an Allen head. Let that drain. Pull the #2 and use a mighty vac or equivalent and suck out as much as you can. Turn over by hand or disconnect CPS and crank a few times and catch any fuel. There will be all of the fuel and oil from that head's galleys in the hole as it has nothing stopping it from going there.
Install new injector.
You can either pull your ICP sensor and fill it by hand, or simply attempt to start it with the batteries on a charger or jump starter. It will start off of the passenger side and run rough until it fills the driver side.
Do not worry about the oil in the HPOP reservoir as it has nowhere to leak to, and should be fine for a single injector swap. Even if it drops some, can't see how, it will fill via the LPOP. To be sure you could always top it off before starting.
Install new injector.
You can either pull your ICP sensor and fill it by hand, or simply attempt to start it with the batteries on a charger or jump starter. It will start off of the passenger side and run rough until it fills the driver side.
Do not worry about the oil in the HPOP reservoir as it has nowhere to leak to, and should be fine for a single injector swap. Even if it drops some, can't see how, it will fill via the LPOP. To be sure you could always top it off before starting.
Post Fiend
Joined: Nov 2007
Posts: 9,549
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From: Payson, AZ
Originally Posted by bdrummonds
1.Breaker bar and 23MM socket on the harmonic balncer nu and rotate crank by hand.
2. oil level plug on HPOP resevior (top) remove and check that oil is not mor than 1 inch from top. crank over engine with CPS unplugged (after evacuating oil from cylinder that injector was replaced on)
3. you should be fine with this method, since you are only doing one injector. if you are quick about it there should not be much oil.
2. oil level plug on HPOP resevior (top) remove and check that oil is not mor than 1 inch from top. crank over engine with CPS unplugged (after evacuating oil from cylinder that injector was replaced on)
3. you should be fine with this method, since you are only doing one injector. if you are quick about it there should not be much oil.
Post Fiend
Joined: Feb 2002
Posts: 10,600
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From: Carhenge
Originally Posted by Tenn01PSD350
Technically there is no reason to disconnect anything unless you have no way to evacuate any fluids from the cylinder before you put in the new injector.
Post Fiend
Joined: Feb 2006
Posts: 11,892
Likes: 2
From: Middle Tennessee
Originally Posted by clux
In addition in order to get under the driver's side valve cover to access #2 you have to disconnect the big wiring harness plug that carries power to all of the injectors.
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From: Memphis, TN
Originally Posted by bdrummonds
1.Breaker bar and 23MM socket on the harmonic balncer nu and rotate crank by hand.
2. oil level plug on HPOP resevior (top) remove and check that oil is not mor than 1 inch from top. crank over engine with CPS unplugged (after evacuating oil from cylinder that injector was replaced on)
3. you should be fine with this method, since you are only doing one injector. if you are quick about it there should not be much oil.
2. oil level plug on HPOP resevior (top) remove and check that oil is not mor than 1 inch from top. crank over engine with CPS unplugged (after evacuating oil from cylinder that injector was replaced on)
3. you should be fine with this method, since you are only doing one injector. if you are quick about it there should not be much oil.
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Post Fiend
Joined: Nov 2007
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From: Payson, AZ
Originally Posted by aocabrown
I hate to ask what is probably a dumb question....but where is the harmonic balancer nut?
The compression with only one injector pulled will prevent you from turning the engine over by hand. I threw this is just in case you hadn't thought about it.
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From: Memphis, TN
I bought a vaccum pump from Tractor Supply today that is designed to remove oil (for oil changes) using the dipstick tube. I'm hoping this will do the trick for removing oil from this cylinder as well...then I'll just remove the GP and turn the truck over with the starter. Hopefully that's not a big mistake....if so, someone let me know.
Also....when I'm removing the oil....how much is enough? I don't want to remove a cup full and think I got it all if there are 4 cups in there.....but I also don't want to try and try to only get a teaspoon of oil out...if that is all that is there.
Also....when I'm removing the oil....how much is enough? I don't want to remove a cup full and think I got it all if there are 4 cups in there.....but I also don't want to try and try to only get a teaspoon of oil out...if that is all that is there.
Post Fiend
Joined: Jul 2005
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From: 21791
I used one of those to suck the oil out of the cylinders. There was a tough plastic tube that fit right down in the injector tip bore and sucked out most of the oil. There was still too much in there to let the engine turn over, so i installed the VC's, and with the injectors in, and the glow plugs out, cranked the engine with the starter.
Lead Driver
Joined: Nov 2007
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i turned my motor over with a cheap breaker bar, with only one injector pulled. It was easy but very efficient in getting fluid out. NOTE: MAKE SURE YOU COVER THE WHOLE WITH A RAG!!!! It will shoot oil everywhere if you don't!!! Have a few rags ready so u can use a clean piece of the rag after every time it shoots oil out (ever time #2 sees the top of the cylinder") It will make a squirting noise. You want to use a clean piece of rag every time to help monitor how much oil is coming out.
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Senior User
Joined: Jul 2005
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From: Memphis, TN
Hopefully doing the swap first thing in the AM. Replacement IDM on the way...between the injector swap and the IDM I hope I'm on the road to recovery (if not...my wife's gonna kill me)