Oil analysis result BAD!!!!!!

[rjjff]

Analysis indicates abnormal conditions! Coolant additives are present. Cylinder area and bearing or bushing wear. Drain the oil and change the filter if not already performed.
Oil had 1600 miles

abnomalities noted in analysis
Aluminum 13
Copper 91
Silver 2.2
Silicon 38
Sodium 543
Potassium 990
Phospphorus 1743

How Bad is it?????

 

[cary]

Looks to me like a head gasket, but wait for Raventai, he is better at reading them than I am. Also, post it over on bobistheoilguy.com, with a note of what engine, what oil, mileage, lab (obviously not Blackstone, they have more information), and ask their thoughts. Did the analysis report moisture in the oil? Solids?


Finally, you could track down Terry Dyson over at BITOG and pay his fee for his thoughts.

 

[IdahoDoug]

There are a few analyses posted here for this engine. Do a search and compare some of your numbers, but if this is Blackstone you can call them and ask about the coolant in terms of severity. Frankly, at such low miles on the oil it doesn't look good, but they'll provide more insight.

DougM

 

[RavenTai]

nasty.

what lab was that?
is that the only results given?
what oil and weight?
has the engien ever been rebuilt or opened?
any fuel or oil addatives?

copper 91? eh? is this a chevy engine or the 1FZ?

no lead? no tin? no iron?

 

[MoJ]

rjjff -
Is that analysis from Blackstone? If so, what are the water & anitfreeze results toward the bottom of the report?

 

[rjjff]

The oil analysis was perfomed by Oilscan, I picked the kit up at the Local John deere dealer. The truck is a 96 lx with 92000 miles. I bought it 4 years ago with 72000 miles on it, so I'm not sure if it has been rebuilt. The numbers that I gave were the only numbers that the were abnormal. Here are all the numbers, the numbers in () are considered abnormal. Mobil 1 syth 10w30 wth 1600 miles on it.

Iron 51, Boron 69 ,
sodium (543), chromium 1
nickel 1, Potasium (990),
aluminum (13), Molybdenum 447, Phosphorus (1743), lead 5
Copper (91), zinc 1172,
tin 3, calcium 3705,
silver (2.2), barium <10,
titanium <1, magnesium 33,
silicon (38), antimony<30,
vanadium<1

water% vol <.10
oil fuel add % vol <1.0
T/S % vol <.1
Vis cs 100`C 11.3

 

[cary]

Hmm, got me beat. No water contamination, but they don't report antifreeze, which is where I would bet the high levels are comming from. Perhaps a very slow head gasked leak with the water evaporating off. Give us some more information about how you drive (long trips, in town, etc) and what kind of coolant you are using (Toyota Red, Prestone Green?). I would also consider pulling another sample and sending it to blackstone.

 

[rjjff]

Mostly in town driving. I pull a 5000lb boat 10miles to the river, accasionaly maybe a four hour trip (maybe once a year) I've always used toyota red and that is what was in it when I bought it with 72000 miles on it. I did a radiator flush on it after I bought it four year ago and there was alot of gray sludge that came out (probable the first time it had been flushed). I've done a couple more since and it was'nt to bad. never had any overheating issues, but I have noticed a slight drop in antifreeze lately.

 

[CJF]

I have noticed a slight drop in antifreeze lately.

Uh oh...

 

[tarbe]

You need to get your coolant and intake leaks fixed fast.

All that in only 1,600 miles...

 

[IdahoDoug]

Agree it's worth tossing a sample to Blackstone - both as a backup and also they seem to provide better info in a more comprehensive way. Coolant in the oil will eat your bearings.

DougM

 

[valentine]

Coolant in the oil will eat your bearings.

DougM

I found that out the hard way

 

[rjjff]

I pulled the plugs #2 cylinder looked like it had been washed # 6 looked good. I'm convinced that I have a problem with my head gasket, so I ordered the head gasket kit. My biggest concern now is the analysis showed that I have "cylinder area and bearing wear or bushing wear".
I'm not sure if I want to waste the time doing a head gasket if I bigger problems to worry about.

 

[semlin]

did any plugs look blacker than the others?

if blackstone or somebody else qualified confirms the bottom end wear from that count, then I would pull the block and start over.

 

[landtank]

If you're nervous about bearing wear pull the oil pan and plastic guage the bearings and then go from there.

 

[rjjff]

Sorry for the stupid question, but how do you "plastic gauge" the bearings?

 

[LandCrusher'70]

Sorry for the stupid question, but how do you "plastic gauge" the bearings?

Plasti-gauge is a gauge for determining clearace. IIRC, You take off the bearing caps, place the plastigauge in between the bearing and crank, torque to spec, then remove. I believe it shows a color scale to show your actual clearance.

 

[SteveH]

Plastigage looks like dental floss, but is made of wax. After you squish the plastigage in a bearing it gets fatter, and you compare it to a width scale provide on the paper strip to which the plastigage was attached. The fatter the plastigage 'line', the tighter the bearing clearance. You buy plastigage in various size ranges, depending on your expected use. One size does not fit all, in this case.

It's kind of fun to use, unless you discover that the simple reason for low oil pressure (worn bearings) isn't the reason you have low oil pressure.

Steve

 

[rjjff]

Well, I pulled the head off # 6 was in bad shape. I took the head to a local machine shop to get it pressure tested. Does anyone know what the clearances should be using the plastigage? I bought three different sizes .025-.076, .051-.152 and .102-.229 any help is appreciated.

 

[landtank]

Check the FSM for what the bearing tollerance should be and then start there.