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1994.5 - 1997 7.3L Power Stroke Diesel  

DIY injectors

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Old Aug 17, 2007 | 07:00 PM
  #16  
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Originally Posted by F0rdF0rever
I have the DIY stage ones. They were surprisingly easy do. The instructions include a cd rom with pictures which makes it easier. After you've completed a couple you'll find yourself flying through them with no instructions. Took me less than 20 mins per injector. Just make sure you have a large clean work area with a vise to work with. There are lots of small parts you dont want to lose.
Ive had mine in for almost a year now with no injector problems. My turbo has held fine, whats hurting is my tranny. Already blew up a torque converter that wasnt that old. Maybe 2 years. The rest isnt far behind.

Did you have any problems with your sleeves?
 
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Old Aug 17, 2007 | 07:04 PM
  #17  
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you shouldnt run into sleeve problems unless there is a lack of cooling system maintinance. if the protection level is good they should last the life of the truck
 
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Old Aug 17, 2007 | 08:12 PM
  #18  
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Good deal. Should be pretty straight forward then.
 
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Old Aug 18, 2007 | 12:07 AM
  #19  
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Originally Posted by F0rdF0rever
I have the DIY stage ones. They were surprisingly easy do. The instructions include a cd rom with pictures which makes it easier. After you've completed a couple you'll find yourself flying through them with no instructions. Took me less than 20 mins per injector. Just make sure you have a large clean work area with a vise to work with. There are lots of small parts you dont want to lose.
Ive had mine in for almost a year now with no injector problems. My turbo has held fine, whats hurting is my tranny. Already blew up a torque converter that wasnt that old. Maybe 2 years. The rest isnt far behind.

how much of a boost increase did you see with the stage 1's and does it spool alot faster
 
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Old Aug 18, 2007 | 10:56 AM
  #20  
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What are the differences between getting the regular injectors and the DIY kit as far as work is concerned?
 
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Old Aug 18, 2007 | 12:08 PM
  #21  
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From: Belair md
the physical injector looks the same on the outside its the guts that are changed
 
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Old Aug 18, 2007 | 06:55 PM
  #22  
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i did the DIY injectors and i wish i had done them when i first bought my truck!

its actually very easy to do. i did them one at a time. i think the first one took me 1-1.5 hours but then after i figured out what i was doing i did the rest in about 2 hours. i went through and made sure everything was squeaky clean with brake cleaner.

you need to go ahead and order the kit from DZLJIM http://www.diy-injectors.com/

i strongly suggest buying the pre-machined pistons and a parts kit. that will make the whole project WAY easier/quicker!

-cutts-
 
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Old Aug 18, 2007 | 07:46 PM
  #23  
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Originally Posted by fishmanndotcom
i did the DIY injectors and i wish i had done them when i first bought my truck!

its actually very easy to do. i did them one at a time. i think the first one took me 1-1.5 hours but then after i figured out what i was doing i did the rest in about 2 hours. i went through and made sure everything was squeaky clean with brake cleaner.

you need to go ahead and order the kit from DZLJIM http://www.diy-injectors.com/

i strongly suggest buying the pre-machined pistons and a parts kit. that will make the whole project WAY easier/quicker!

-cutts-
how much of a boost increase did you notice?
 
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Old Aug 18, 2007 | 08:30 PM
  #24  
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i can hit 32psi unloaded without much trouble!

thats why just last week i swapped on a D66 turbo from Beans.

-cutts-
 
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Old Aug 18, 2007 | 08:40 PM
  #25  
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Originally Posted by fishmanndotcom
you need to go ahead and order the kit from DZLJIM http://www.diy-injectors.com/

i strongly suggest buying the pre-machined pistons and a parts kit. that will make the whole project WAY easier/quicker!
What machining needs to be done to the pistons?
 
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Old Aug 18, 2007 | 10:15 PM
  #26  
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each piston needs to be machined down to a very exact spec. i'll see if i can dig up the exact number. machining the pistons allows more fuel in the injector which in turn allows it to put out more power

-cutts-
 
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Old Aug 19, 2007 | 12:32 AM
  #27  
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Originally Posted by Mark62
What machining needs to be done to the pistons?
You roughly have to cut about .100" off of the piston.

An easy way to explain how it gets more fuel is sort of like how a syringe works. If you want more fluid in the syringe, you pull the "plunger" back creating more travel. Same concept as the PowerStroke injector. The "plunger" sits inside the piston. By machining part of the piston, making the piston shorter, you will allow the piston to pull back farther and move foward farther. This will allow the "plunger" to push more fuel out.
 
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Old Aug 19, 2007 | 11:27 PM
  #28  
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Mark, fishy was refering to the intensifier pistons inside the injectors, not the engine pistons....just clarifying.

I did the DIY's and love them. Very easy to do. I highly suggest them. But if you don't want to build them, I would easily suggest Beans Diesel Performance injectors. Or have Jim at DIY build them for you. It's all win/win.

Welcome to the forum Mr. Casserly. I hope you enjoy it and participate alot. I have no doubt you have ALOT of knowlege we could all benifit from. Especially in the injector area. Seriously, it's good to see you on here and look forward to more of your input.
 
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Old Aug 20, 2007 | 09:44 AM
  #29  
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All really good stuff gents. Thanks so far for the replies. I am seriously mulling this action on my truck. I just need to get my Ducks in a row first.
 
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Old Aug 20, 2007 | 10:06 AM
  #30  
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There is one other option, I have DIY stage 1's, but I didn't build them myself. I was going to until Jim Rose (DIY) told me he also offers what he calls "budget built" stage 1's, which were something like 10% more than the DIY parts. I went that route because I was chicken and it wasn't very expensive, but most important to me was he's got a test fixture to run each one on after the rebuild. It turned out one of my nozzles was bad, Jim caught it and replaced it. I could not see it myself. An extra $50 or so was worth it to me to have Jim do them right.
 
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