| First oil change on rebuild analysis results [message #149649] |
Mon, 14 November 2011 16:50  |
Keith V
Messages: 2337
Registered: March 2008
Location: Mounds View,MN
Karma: 0
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Senior Member |
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here's the original thread;
http://gmc.mybirdfeeder.net/GMCforum/index.php?t=msg&goto=148792&rid=1431&srch=thin+oil#msg_148792
Got the Blackstone report today
here's what they said;
KEITH: It's not unusual to see high wear from a rebuilt engine. Universal averages show typical wear levels
for this type of engine after about 2,600 miles on the oil. We are a little concerned about potassium and
sodium. Potassium could be from the rebuild process and sodium could be harmless oil additive, but the two
can also show coolant. Lead, from the bearings, seems high, even for a new engine, and that's where
coolant tends to attack first. If you're not losing coolant, it's just something to monitor at this point. Check
back in 500 miles to monitor.
ALUMINUM 7
CHROMIUM 5
IRON 73
COPPER 45
LEAD 85
TIN 10
MOLYBDENUM 18
NICKEL 2
MANGANESE 5
SILVER 0
TITANIUM 0
POTASSIUM 18
BORON 5
SILICON 48
SODIUM 400
CALCIUM 1847
MAGNESIUM 11
PHOSPHORUS 788
ZINC 834
What do you guys think?
time to saddle up?
Keith Vasilakes
Mounds View. MN
75 ex Royale GMC
ask me about MicroLevel
Cell, 763-732-3419
My427v8@hotmail.com
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| Re: First oil change on rebuild analysis results [message #149653 is a reply to message #149649] |
Mon, 14 November 2011 18:19  |
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Matt Colie
Messages: 8547
Registered: March 2007
Location: S.E. Michigan
Karma: 7
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Senior Member |
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| Keith V wrote on Mon, 14 November 2011 17:50 |
here's the original thread;
http://gmc.mybirdfeeder.net/GMCforum/index.php?t=msg&goto=148792&rid=1431&srch=thin+oil#msg_148792
Got the Blackstone report today
here's what they said;
KEITH: It's not unusual to see high wear from a rebuilt engine. Universal averages show typical wear levels
for this type of engine after about 2,600 miles on the oil. We are a little concerned about potassium and
sodium. Potassium could be from the rebuild process and sodium could be harmless oil additive, but the two
can also show coolant. Lead, from the bearings, seems high, even for a new engine, and that's where
coolant tends to attack first. If you're not losing coolant, it's just something to monitor at this point. Check
back in 500 miles to monitor.
ALUMINUM 7
CHROMIUM 5
IRON 73
COPPER 45
LEAD 85
TIN 10
MOLYBDENUM 18
NICKEL 2
MANGANESE 5
SILVER 0
TITANIUM 0
POTASSIUM 18
BORON 5
SILICON 48
SODIUM 400
CALCIUM 1847
MAGNESIUM 11
PHOSPHORUS 788
ZINC 834
What do you guys think?
time to saddle up?
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Kieth,
This is a 2600 mile analysis?
That makes it about 75 hours(?).
They didn't give a separate gylcol value? - I thought they did that.
I'm with them, yeah, it's a new motor and you don't know about the surface finishes everywhere. It's not eating coolant, is it?
If it is, I would do cylinder pressure check right now and pull the leaking head.
Matt
Matt & Mary Colie - Chaumière -'73 Glacier 23 - Members GMCMI, GMCGL, GMCES
Electronically Controlled Quiet Engine Cooling Fan with OE Rear Drum Brakes with Applied Control Arms
SE Michigan - Near DTW - Twixt A2 and Detroit
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| Re: First oil change on rebuild analysis results [message #149654 is a reply to message #149653] |
Mon, 14 November 2011 18:27 |
Keith V
Messages: 2337
Registered: March 2008
Location: Mounds View,MN
Karma: 0
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Senior Member |
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| Matt Colie wrote on Mon, 14 November 2011 18:19 |
| Keith V wrote on Mon, 14 November 2011 17:50 |
here's the original thread;
http://gmc.mybirdfeeder.net/GMCforum/index.php?t=msg&goto=148792&rid=1431&srch=thin+oil#msg_148792
Got the Blackstone report today
here's what they said;
KEITH: It's not unusual to see high wear from a rebuilt engine. Universal averages show typical wear levels
for this type of engine after about 2,600 miles on the oil. We are a little concerned about potassium and
sodium. Potassium could be from the rebuild process and sodium could be harmless oil additive, but the two
can also show coolant. Lead, from the bearings, seems high, even for a new engine, and that's where
coolant tends to attack first. If you're not losing coolant, it's just something to monitor at this point. Check
back in 500 miles to monitor.
ALUMINUM 7
CHROMIUM 5
IRON 73
COPPER 45
LEAD 85
TIN 10
MOLYBDENUM 18
NICKEL 2
MANGANESE 5
SILVER 0
TITANIUM 0
POTASSIUM 18
BORON 5
SILICON 48
SODIUM 400
CALCIUM 1847
MAGNESIUM 11
PHOSPHORUS 788
ZINC 834
What do you guys think?
time to saddle up?
|
Kieth,
This is a 2600 mile analysis?
That makes it about 75 hours(?).
They didn't give a separate gylcol value? - I thought they did that.
I'm with them, yeah, it's a new motor and you don't know about the surface finishes everywhere. It's not eating coolant, is it?
If it is, I would do cylinder pressure check right now and pull the leaking head.
Matt
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No it's got about 600 miles on it
Ill check the coolant, but it looked ok...
They put a '?' in for antifreeze
Here's the rest of the report....
cSt Viscosity @ 100°C 54.9
SUS Viscosity @ 210°F 8.75
Flashpoint in °F 420
Fuel % <0.5
Antifreeze % ?
Water % 0.0
Insolubles %0.3
Keith Vasilakes
Mounds View. MN
75 ex Royale GMC
ask me about MicroLevel
Cell, 763-732-3419
My427v8@hotmail.com
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| Re: First oil change on rebuild analysis results [message #149656 is a reply to message #149649] |
Mon, 14 November 2011 18:46 |
roy1
Messages: 2126
Registered: July 2004
Location: Minden nevada
Karma: 6
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Senior Member |
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As long as the temperatures ,oil pressure and antifreeze level stay good take it on a few short trips and it should start to wear in. As you get more miles on it the engine will get stronger
and you will feel more confident about the rebuild. Right now every little noise will have you thinking something is wrong. If you are cutting the oil filter open to see how much crud is in it you will likely think there is too much but each filter change should have less and less. Been there done that.
Roy Keen
Minden,NV
76 X Glenbrook
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