Self-Destruction

[widman]

Just so you can see some real world analysis:
Toyota pickup, 2.3 l engine, 4000 km on oil:
Iron: 991
Chrom: 72
Lead: 3
Copper: 21
Tin: 0
Aluminum: 159
Nickel: 7
Silicon: 325
Boron: 119
Sodium: 19
Magnesium: 52
Calcium: 2720
Barium: 0
Phos: 1103
Zinc: 1295
Moly: 109
Fuel: Visc: 19.13
TBN: 9.4
Water: 0
Soot/Solids 1.8

 

[jason07-1zzfe]

Are they running that sucker with no air filter on dirt roads or what!? Very interesting and informative. Thanks.

 

[doyall]

Tin looks excellent!

 

[Patman]

All things considered I'm shocked at how good the TBN and lead values are!

 

[jason07-1zzfe]

Maybe the thicker oil is keeping the bearings separated just enough to protect them from the dirt. Everything else that runs thinner films or mixed/boundry is getting annihilated!

 

[timzak]

Any more wear metals and they'd just about add up to a million.

 

[jsharp]

quote:

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Originally posted by timzak:
Any more wear metals and they'd just about add up to a million.

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That must be the "100% worn out" stage. When wear metals in ppm = 1,000,000

 

[Al]

Any other details??

Lead lookd good.

Probably none left in the bearing

 

[Pablo]

Don't keep us hanging, what's failing? The oil doesn't even have 3000 miles.

The wisecrack about Sn is hilarious, and so typical for this forum

 

[Jay]

I wonder what the oil filter looks like.

 

[Virtuoso]

quote:

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Originally posted by Jay:
I wonder what the oil filter looks like.

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LOL. MIA, probably

 

[vvk]

Busted timing chain?

 

[Terry]

Time chain break is a good guess and may be a part of this, Wid, was engine submerged in water while running early before this test result ?

Iron is cylinder walls,rings damaged.

Chrome is rings,cam and cylinder walls damaged.

Lead is normal and indicates main bearings are "normal" relatively speaking.

Aluminum pistons shot, rocker arm damage.

Copper wrist pin bushings, cam bushings.

Nickel valve guides shot.

Silicon , pistons, cylinder walls, and DIRT.

 

[widman]

They were told once, and supposedly read in an owner's manual, that you should use the air hose to keep your air filter clean. Some of the books say you can, up to 30 psi. But many people here say that more is better, so they use 120 psi, from outside to inside.......
Fortunately they use a good (although Group I) oil.
I ran analisis on 5 engines for them. Iron wear was 991, 401, 133, 190, and 123.

I will post them with the similar ones on my site when I get a chance.

 

[Pablo]

So Terry's very last word sums it up.

Wow.

I don't think we've seen such a "textbook" analysis here.

Thank you.

 

[yannis]

quote:

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Originally posted by MolaKule:
Widman,

Is this engine still running?

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I bet it is running ,toyota's die hard

(american camry's excluded)

You can see it everywhere in the world.Just pay attension to the news , Africa ,Middle East -remember Afganistan ? - when the environment is hostile ,desert or extremely hot all you can see is toyota pick up's and 4x4.

 

[ToyotaNSaturn]

Was oil actually used in the sump or some other substance? If oil was used, (not that it matters) but what kind? SA rated oil?

In the first half of last century oil filters didn't exist. This truck makes me believe this is what a UOA looked like circa 1940.

I would be interested in seeing if an imploding engine like this would actually pass emissions testing around here.

 

[ToyotaNSaturn]

quote:

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Originally posted by doyall:
Tin looks excellent!

---

 

[mph]

quote:

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Originally posted by doyall:
Tin looks excellent!

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And the TBN is holding up well. Extend interval to 6,000 km and resample.

 

[Drew99GT]

Did I read that right? Blow 120psi from the dirty side on through to the clean side? Wa wa whaaaaat (in the words of Kyle Broffloskies mom on South Park)? You'd think someone's common sense would tell them to not do this

Every manual I've seen has said to use light compressed air from the clean side and blow through to the dirty side!