FOOLING AROUND WITH INJECTORS !! - Ford Powerstroke Diesel Forum
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post #1 of 14 Old 05-07-2013, 10:34 AM Thread Starter
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FOOLING AROUND WITH INJECTORS !!

Well i had some spare time one day and desided to start fooling around with a injector. This is what i did first i took the spool valve and installed it backwards from it original position. This is not good the symtom being a complete NO START oil just pooring from spill port! Then i desided to put it in correctly and jam it all the way to the right side of the injector believe it or not the truck started fine and ran fine to my suprise i thought for sure it would miss but it did not. I then jammed spool valve all the way to left side harness side of injector and what do you know it had a very long crank time but started and missed. This makes me wonder about some very long - lazy crank times on trucks that do not have any leaks in HPOS or HPOP that a few injectors are stuck that way. I DID NOTICE THAT EVERY INJECTOR has a rest position and that is with the spool valve to the right side of the injector. Just wanted to share what i found.

P.S. ive done 10 sets of spool valves polished with no comebacks and in fact very happy customers!!


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post #2 of 14 Old 05-07-2013, 01:22 PM
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That is some VERY interesting information Dale. Thanks man.

I too have wondered why when I shut my truck off after it is hot, let it sit for about 10 mins, go out to crank it, and it takes longer than if it is cold to start. And I too have no HPO leaks that I am aware of. All brand new orings and seals in the system.

Maybe the spool valve not being all the way in the rest position is why.

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post #3 of 14 Old 05-07-2013, 01:27 PM
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Hey Dale,

You are either too smart or behind the times, not sure which LOL!

I was talking to a peterbilt tech who strayed over to talk to me about my truck at the gas station. I talked to him for like a half hour, he works on cummins and cat motors. He knew the 6.0 had a HEUI system in it and was asking if I had any injector, egr, HG, or oil cooler issues yet. I said you must own a powerstroke, he laughed and said YEP!

He was telling me some real good info and was just a knowledgeable guy all around. In the midst of our conversation he mentioned that years ago he began polishing the spool valves in the cat motors as they had injector failure issues that were pretty common. He said he cant off hand remember any of the same trucks he did that to ever coming back with injector issues. He also gave me a link for good info about HEUI that may help some others in understanding these systems - it even has info about the powerstroke in there

http://dieselclass.com/Fuels%20Files/HEUI%201-08.pdf

You are definitely in tune with your trade!! I told him that one of the techs on the forum I am on started doing that and he said that you should start a service just doing that as you would have happy customers and he said tell him kudos for thinking outside the box - SO I guess to blow a sunshine up your skirt I will say you are definitely good at what you do and maybe you are on to something that could really help this community out.

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post #4 of 14 Old 05-07-2013, 02:37 PM Thread Starter
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Quote:
Originally Posted by windrunner408 View Post
That is some VERY interesting information Dale. Thanks man.

I too have wondered why when I shut my truck off after it is hot, let it sit for about 10 mins, go out to crank it, and it takes longer than if it is cold to start. And I too have no HPO leaks that I am aware of. All brand new orings and seals in the system.

Maybe the spool valve not being all the way in the rest position is why.
Could be buddy. I was very surprised by my results as well!


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post #5 of 14 Old 05-07-2013, 02:43 PM Thread Starter
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Originally Posted by white59rt View Post
Hey Dale,

You are either too smart or behind the times, not sure which LOL!

I was talking to a peterbilt tech who strayed over to talk to me about my truck at the gas station. I talked to him for like a half hour, he works on cummins and cat motors. He knew the 6.0 had a HEUI system in it and was asking if I had any injector, egr, HG, or oil cooler issues yet. I said you must own a powerstroke, he laughed and said YEP!

He was telling me some real good info and was just a knowledgeable guy all around. In the midst of our conversation he mentioned that years ago he began polishing the spool valves in the cat motors as they had injector failure issues that were pretty common. He said he cant off hand remember any of the same trucks he did that to ever coming back with injector issues. He also gave me a link for good info about HEUI that may help some others in understanding these systems - it even has info about the powerstroke in there

http://dieselclass.com/Fuels%20Files/HEUI%201-08.pdf

You are definitely in tune with your trade!! I told him that one of the techs on the forum I am on started doing that and he said that you should start a service just doing that as you would have happy customers and he said tell him kudos for thinking outside the box - SO I guess to blow a sunshine up your skirt I will say you are definitely good at what you do and maybe you are on to something that could really help this community out.

Todd
Thank you very much Todd it really means alot to me when i see people who read what i post and benifit from. I read alot here and learn a GREAT DEAL HERE AS WELL! So again thank you!


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post #6 of 14 Old 05-07-2013, 02:46 PM
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What exactly do you mean by jamming it to the left and right sides?

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post #7 of 14 Old 05-07-2013, 02:49 PM Thread Starter
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What exactly do you mean by jamming it to the left and right sides?

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I had a injector that was going back so i scored the bore so the spool valve was jammed would not slide! I took a punch and moved it both ways.


2001 to 2015 SENIOR MASTER TECHNICIAN
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post #8 of 14 Old 05-07-2013, 03:53 PM
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i am curious on this as well. i just finished my rebuild(studs&gaskets)etc i got 175/stock from renegade and i have a strong feelings that something is not right with them. ive talked with sheldon and were on the same page about my issue being an injector problem! no big deal hes taking care of me 100% and i upgraded to 175/30 and waiting on them now.

my truck has long cold starts but seems to start fine when hot, smokes untill warm also wont get out of its own way untill warm. seems every truck is a different beast. id like to understand injectors better. just wondering if this could help me? ive been told NOT to do this.
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post #9 of 14 Old 05-07-2013, 03:56 PM
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also i pressure tested the hpop with no leaks
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post #10 of 14 Old 05-07-2013, 04:04 PM
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Quote:
Originally Posted by white59rt View Post
Hey Dale,

You are either too smart or behind the times, not sure which LOL!

I was talking to a peterbilt tech who strayed over to talk to me about my truck at the gas station. I talked to him for like a half hour, he works on cummins and cat motors. He knew the 6.0 had a HEUI system in it and was asking if I had any injector, egr, HG, or oil cooler issues yet. I said you must own a powerstroke, he laughed and said YEP!

He was telling me some real good info and was just a knowledgeable guy all around. In the midst of our conversation he mentioned that years ago he began polishing the spool valves in the cat motors as they had injector failure issues that were pretty common. He said he cant off hand remember any of the same trucks he did that to ever coming back with injector issues. He also gave me a link for good info about HEUI that may help some others in understanding these systems - it even has info about the powerstroke in there

http://dieselclass.com/Fuels%20Files/HEUI%201-08.pdf

You are definitely in tune with your trade!! I told him that one of the techs on the forum I am on started doing that and he said that you should start a service just doing that as you would have happy customers and he said tell him kudos for thinking outside the box - SO I guess to blow a sunshine up your skirt I will say you are definitely good at what you do and maybe you are on to something that could really help this community out.

Todd
Good link!! Lots of info! Thanks!


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