17 and 19 degree hpop whats the difference? - PowerStrokeNation : Ford Powerstroke Diesel Forum
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post #1 of 14 (permalink) Old 12-26-2009, 03:14 PM Thread Starter
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17 and 19 degree hpop whats the difference?

whats the difference between the 17 and 19 degree high pressure oil pump?

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post #2 of 14 (permalink) Old 12-26-2009, 03:24 PM
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Re: 17 and 19 degree hpop whats the difference?

2 degrees........

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post #3 of 14 (permalink) Old 12-26-2009, 03:24 PM
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Re: 17 and 19 degree hpop whats the difference?

One can supply more oil. Who made the 19 degree pump?
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post #4 of 14 (permalink) Old 12-26-2009, 03:27 PM
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Re: 17 and 19 degree hpop whats the difference?

You mean what's the differance between a 15* and 17* hpop.The awnser is the 17* will move more oil. From what I have seen the 17* will hold about 300-500 psi more than the 15* at wot with stock ad injectors. Disclaimer your results may differ.

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post #5 of 14 (permalink) Old 12-26-2009, 08:54 PM
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Re: 17 and 19 degree hpop whats the difference?

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Originally Posted by tank View Post
You mean what's the differance between a 15* and 17* hpop.The awnser is the 17* will move more oil. From what I have seen the 17* will hold about 300-500 psi more than the 15* at wot with stock ad injectors. Disclaimer your results may differ.
there is a modded hpop that is 19* or 20*. i am running one from joey, not really impressed with it. it is one of the first ones he did and i guess he can fix the extended start problem that the first modded pumps had.

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post #6 of 14 (permalink) Old 12-27-2009, 12:22 AM Thread Starter
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Re: 17 and 19 degree hpop whats the difference?

I'm sorry I meant 15* and 17* thanks for all the great info. If I had one starting to go bad would it give me trouble starting cold?

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post #7 of 14 (permalink) Old 12-27-2009, 12:52 AM
 
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Re: 17 and 19 degree hpop whats the difference?

Probably not, but if that's the story you have to give your wife to justify a 'new' one, I don't think anyone will tell on you
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post #8 of 14 (permalink) Old 12-27-2009, 02:04 AM
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Re: 17 and 19 degree hpop whats the difference?

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Probably not, but if that's the story you have to give your wife to justify a 'new' one, I don't think anyone will tell on you
if the hpop is going bad how would it create the right amount of psi in order to start?

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post #9 of 14 (permalink) Old 12-27-2009, 02:29 AM
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Re: 17 and 19 degree hpop whats the difference?

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Originally Posted by urbanwheeler View Post
there is a modded hpop that is 19* or 20*. i am running one from joey, not really impressed with it. it is one of the first ones he did and i guess he can fix the extended start problem that the first modded pumps had.
Grant, I don't mess with swash plates, it effects pump reliability. Yours is still a 17. If/when you have some down time, send it down and I'll update it for free, I think....................
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post #10 of 14 (permalink) Old 12-27-2009, 03:55 AM
 
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Re: 17 and 19 degree hpop whats the difference?

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if the hpop is going bad how would it create the right amount of psi in order to start?
I suppose it's possible, but I have never heard of it. I'm certainly not an expert, but from what I do know of how the HPOP and HEUI in general functions, a few things...

1) So little ICP is used to idle, that if your HPOP is not producing adequate pressure it is much more likely to manifest at WOT and high RPM than at idle loads
2) I'm not sure that it is something that would gradually wear out. Isn't it a piece of equipment that is going to just stop working altogether, vice gradually lose effectiveness like a consumable (say, an alternator)? Other pumps, like power steering, water pumps, hydraulic pumps, etc... tend to just straight sh*t the bed

What are a few of the more likely candidates?
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