Aluminum shavings in oil

I have noticed a increasingly rough idle just lately and jumpy cruise.
Still had full power.
Decided to change the oil.
Saw small aluminum specks.
I know this because the specks were not magnetic.
Not splinters like if it was lpop to front cover damage.
I have the hpop resivor filter.
which leads me to believe because the injectors are damaged it's a HPOP.
Heard a slight squeal doing the engine on run test through AE.
Sounds like HPOP squeal.
This has never happened before doing this test.
I already know my injectors are going to need to be rebuilt.
And I'm pretty sure that one of my HPOPs is on the way out.
Obviously not going to drive the truck anymore because I don't want to score the front cover.
Going to be taking out the injectors and HPOPs in the next few days.
With all this being said who inspects HPOPs?
And does my thinking sound correct?
How do I flush the oil system?
Already put new oil in and saw a few more aluminum specks in the new oil.
All help is appreciated.
Already made up my mind to send the injectors to PIS to get looked over and repaired.
Running twin 17* Stealth HPOP setup.
I may cut apart the oil filter I just changed to see how much debris is in the filter to judge damage.




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Also I have run multiple contribution tests and continuously fail 1-2-3, 1-2-4 and 1-2-5 in no exact order.
Even with the 350cc 200% I have never failed one of these tests before.
Luckily I have not been driving the truck hardly at all.
Hopefully the extent of the damage is not large.

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HPOP squeal vid during engine on run test with AE.

https://vimeo.com/160357297

On full throttle run I'm still maintaining desired icp at only 35% dc.


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KBMKVIII said:

HPOP squeal vid during engine on run test with AE.

https://vimeo.com/160357297

On full throttle run I'm still maintaining desired icp at only 35% dc.


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I'd definitely get thought checked, I'm pretty sure bob at diesel site can check the pumps and upgrade them to adrenalines

I would've recommended terminator engineering, but it seems Joey is winding down?



For the aluminum specs in the oil. All I can think of is, buy the cheapest 15w40 no name oil, and keep changing it till it comes out clean, I'd let it run for about 2-4min, then drain. And repeat.


For the oil process, I might be wrong though. Just what comes to mind logically for me. Maybe someone else will chime in.


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Thank you Jomax I totally did not think of Bob!
Ill give him a call Monday.
A while back when I initally bought this twin pump setup off a member here, sent them back to Gary at Stealth and he said they flowed fine.
Ill call him again as well.
Im wondering if its just best to upgrade to a billet stg 2 HPOP if they are still avail.
Ill be droping the oil cooler and flushing it as well after doing the oil flush process too.
Started opening up the motor getting ready to pull the injectors last night.
Oddly enough I did not see a single speck of aluminum in the oil that came out of the resivor.

KBMKVIII said:

Thank you Jomax I totally did not think of Bob!
Ill give him a call Monday.
A while back when I initally bought this twin pump setup off a member here, sent them back to Gary at Stealth and he said they flowed fine.
Ill call him again as well.
Im wondering if its just best to upgrade to a billet stg 2 HPOP if they are still avail.
Ill be droping the oil cooler and flushing it as well after doing the oil flush process too.
Started opening up the motor getting ready to pull the injectors last night.
Oddly enough I did not see a single speck of aluminum in the oil that came out of the resivor.

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That is odd on no shavings in the reservoir.


Due to the bad rep stealth has been having, I'd skip them personally.


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I have been out of the HPOP game for a while I guess!
I changed the oil and took it for a short easy drive around the block to see if I could find more shavings.
Nothing yet.
But it's mostly apart and the injectors should be out tomorrow.
I'll have the pumps out shortly after.


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Something to think about, you may want to make sure you get any material that's floating around out of it before you send injectors off. No sense of sending injectors off to get checked out or rebuilt just to put them back in and run contaminated oil thru them.

Um, correct me if I'm wrong here.last I had a hpop apart the center cartridge was brass. In my head lpop/timing cover is the only source of aluminum shavings.

Pistons.....

How could aluminum specs from the HPOP go through the injectors and not damage any of them or make them run period?

Could be front cover I think.

Need to get the LPO pressure.

joe d said:

Pistons.....

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Yea but that you would think other much louder other issues...

Yes you would think. Depending on jow big the shavings are maybe a wrist pin is on its way out... Jjst dont hear it yet..

turbo going bad?? wheel hitting the cover will make that sound..when mine let go.my oil test came back with high amount of aluminum when blackstone tested it...

Ron's Power Stroke said:

turbo going bad?? wheel hitting the cover will make that sound..when mine let go.my oil test came back with high amount of aluminum when blackstone tested it...

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No turbo is fine.
Only makes that squeal under engine on run test when it maxes out icp.

fordman67 said:

Um, correct me if I'm wrong here.last I had a hpop apart the center cartridge was brass. In my head lpop/timing cover is the only source of aluminum shavings.

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HPOPs are aluminum with brass bearings I believe.

PsdPullerJr said:

Something to think about, you may want to make sure you get any material that's floating around out of it before you send injectors off. No sense of sending injectors off to get checked out or rebuilt just to put them back in and run contaminated oil thru them.

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Good idea thank you!

Magnum PD said:

How could aluminum specs from the HPOP go through the injectors and not damage any of them or make them run period?

Could be front cover I think.

Need to get the LPO pressure.

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I'm quite sure the injectors are hurt.
CCT shows 1,2,3-1,2,4 and 1,2,5 failing in no certain order.
The Melling will be removed and front cover inspected.
If it's bad I have another long block in the garage to swap in from a 80k mi 97.

joe d said:

Yes you would think. Depending on jow big the shavings are maybe a wrist pin is on its way out... Jjst dont hear it yet..

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Very small shavings, and I surely hope not...

I will say, as soon as I changed the oil it smoothed out immensely.
But it still squealed when put through the engine in run test when icp maxed.


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