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Old 07-01-2013, 09:01 PM
Jesser02EX Jesser02EX is offline
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Anyone in Tulsa pulled your HPOP?

I'm in Broken Arrow and looking to put new O-rings in my HPOP, rebuild my fuel bowl, new oil lines etc... Being new to the 7.3 I'm looking for a little guidance. I'm happy to do what I can to pay for your time, I just can't afford to pay parts and labor to a mechanic right now and need to get it fixed.

Thanks!
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Old 07-16-2013, 10:07 PM
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I don't know what an HPOP is, but it sounds a little dirty when you say it like that. lol. Anyways, if you figure out how to do it i would be more than happy to help you out if I can find the time. Send me a private message if you need some help and i will try to make some time for you. I'd like to learn what an HPOP is lol.
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Old 07-17-2013, 05:11 AM
jwtimme jwtimme is offline
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High pressure oil pump. It's the oil pump that drives the injectors on a power stroke. I have never pulled mine cause I cannot afford to have the work truck down for very long.
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Old 07-17-2013, 08:27 AM
Jesser02EX Jesser02EX is offline
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I wouldn't be pulling mine if I didn't have a leak. All the shops seem to just pull it and replace it. I'm not sure what I'm getting in to, but it seems plenty on here have done it, and I can use the saved money for other items...
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Old 07-17-2013, 08:46 AM
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Let me guess the HPOP o ring is prob leaking, I have had the o ring replaced twice now.
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Old 07-17-2013, 09:23 AM
Jesser02EX Jesser02EX is offline
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Yes I have a leak somewhere in the HPOP, not from the oil lines, but either the non-servicable plug or the IPR.
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Old 07-17-2013, 09:39 AM
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Quote:
Originally Posted by jwtimme View Post
Let me guess the HPOP o ring is prob leaking, I have had the o ring replaced twice now.
A couple of questions... Exactly which o-ring was replaced? Where did you have the work done and how much was the service bill?
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Old 07-17-2013, 10:36 AM
jwtimme jwtimme is offline
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There is an o ring on the exit side of the pump that splits or fails causing a leak. Joe copper ford has done most of my service work I don't remember what it cost but can look it up later.
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Old 07-17-2013, 11:25 AM
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That sounds like the "non-servicable" plug o-ring.

The factory plug doesn't have a lot of threads and is prone to leaking. You have to pull the pump out to replace the plug and O-ring. To pull the HPOP you also need to pull the fuel bowl...

It's all bolt in and bolt off so I'm not going into the motor. I know I can do it, but having anyone who has experienced it would be a nice addition for the job.

Because its a diesel and because its a common failure, the prices seem to be much higher at the dealerships and repair shops...
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Old 07-18-2013, 03:44 PM
jwtimme jwtimme is offline
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I pulled my tickets and I must have had it done under warranty cause the labor and parts just said zero, so that no help at all.
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Old 07-18-2013, 06:47 PM
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Ok thanks!
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Old 07-21-2013, 12:46 PM
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I haven't pulled a HPOP on a 7.3, but I have had the fuel bowl/filter housing off a couple during fuel pump changes.
There are about 6 total fuel lines that connect to the bowl, 2 threaded fittings front/top, and the rest are hose clamps. 3 of these clamps are towards the bottom of the housing, so a long screwdriver or socket & extension are helpful. Also has 2 electrical plugs to undo.
Once that housing is removed, it appears access to the HPOP is pretty easy, as is the fuel pump.

You might be surprised at what can be hidden at the bottom of that filter housing. I've found as much as 1.5" of crud built up down there, on a truck that actually ran decent, most of the time........

Hope this helps, at least a bit.
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Old 07-21-2013, 04:47 PM
Jesser02EX Jesser02EX is offline
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The fuel pump on a 7.3 is mounted on the frame rail under the driver. The fuel bowl coming out isn't my fear is sucking out the oil from the HPOP resivoir so I limit the mess I make. I'm also scared I'll have issues with the drive nut on the front of shaft...

I'll just have to dive in and take it one bolt at a time. I did buy a complete set of ford shop manuals so that will have some good factory help...
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Old 07-22-2013, 07:13 AM
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Quote:
Originally Posted by Jesser02EX View Post
The fuel pump on a 7.3 is mounted on the frame rail under the driver. The fuel bowl coming out isn't my fear is sucking out the oil from the HPOP resivoir so I limit the mess I make. I'm also scared I'll have issues with the drive nut on the front of shaft...

I'll just have to dive in and take it one bolt at a time. I did buy a complete set of ford shop manuals so that will have some good factory help...
Early 7.3 PSD used a mechanical pump, located in the valley, between the fuel bowl and turbo. I didn't notice what year you are working on......
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Old 07-22-2013, 08:25 AM
Jesser02EX Jesser02EX is offline
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Ah, ok. I've looked at pics of the older mechanical 7.3's.
That was a very tight valley in those motors...
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Old 07-22-2013, 08:25 AM
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