condensation or water?

IDIoit

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prepping my truck for new lifters today.
and I noticed a lot of sludge!
alarms ringing.
could this be simply condensation?
I deal with this a lot on my boats, but the sludge is whiter in color.

but the sludge on my valve covers is not what I wanted to see.

I have only driven this truck around 60ish miles since the rebuild.

I have noticed that I do loose a bit of coolant.
but to be honest, I figured it was due to not having an expansion tank.
I know I need one, but I have not made one yet.

so where is this being introduced at?

Dip stick tells me there is no water in the oil, and the level does not change.

delo 15-40


not happy.
here is the engine build.
http://www.oilburners.net/forums/sh...ited-engine-build&highlight=finally,+the+long

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laserjock

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Is it just the assembly lube not totally dissolved into the oil yet? Don't know if that's a thing or not but it's an awful lot of something.
 

MTKirk

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That'a a whole lotta sludge, almost has to be a constant source of hot steam into the engine. It wouldn't necessarily change the oil level, it would go through the cdr and into the intake as steam.

Bummer! Maybe re-torque the head bolts, clean the valve covers & see if sludge returns?
 

BDCarrillo

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Are... are those the Harland sharpe roller rockers???

Valve stem seals new? Cooked oil from a chuffing valve looked similar.

Crankcase vent setup?
 

icanfixall

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Best suggestion is to have an oil analysis run. That way you will know if its coolant or water or both. Sad site too for a new rebuild. Tell us what block work was done like sleeves or bore or???
 

IDIoit

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I have had it up to temp about 20 times.
never got hotter than 200*
but I have not worked this truck at all.

the engine was a re-manned engine before I got it.
I tore it completely down, cylinders looked perfect.
the reason for the tear down is that it had cracked slugs.
but I thoroughly inspected cylinders and zero sign of cavitation.

heads were completely gone through new valves, springs, and guides.
I have had a bit of chuff, I have been worried about the lifters since I put them in, but I figured if I ran it a bit it would clear out.
it only chuffed for a few seconds upon start up.

think my plan of action for tomorrow is to pressure test the coolant system before I take the intake off and see if I can pin point the leak.
maybe a freeze plug in the heads, leaking steam into the valley? those were not changed.
 

IDIoit

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felpro 7.3 gaskets used, torqued to 125 ft lbs
yep those are the Harland sharpes.
 

riotwarrior

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Looks like undissolved soot sludge left in system. Was block hot tanked and thoroughly cleaned? How about oil cooler..cleaned properly, if you do not get oil above 212 and sustain it any condensation cannot properly steam off to evaporate.

How does CDR look?

If losing coolant but not gaining on dipstick it likely isnt entering block

Dipstick will never telltale if water is in pan...oil being lighter will always be on top and subsequently will not show on dip stick as it gets pulled through oil thus wiping off water....

It will telltale if level in pan increases due to water...but not show water.

X2 oil analysis..

JM7.3CW Eh!
 

jwalterus

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I get the white schmoo under my oil filler cap every july-august, it's because of the high heat and high humidity
 

Shawn MacAnanny

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Did you let it sit and try to drain water from pan? It's easy to test the water that comes out to see if it's Condensation or coolant provided it's atleast 4 ounces or so
 

IDIoit

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Looks like undissolved soot sludge left in system. Was block hot tanked and thoroughly cleaned? How about oil cooler..cleaned properly, if you do not get oil above 212 and sustain it any condensation cannot properly steam off to evaporate.

How does CDR look?

If losing coolant but not gaining on dipstick it likely isnt entering block

Dipstick will never telltale if water is in pan...oil being lighter will always be on top and subsequently will not show on dip stick as it gets pulled through oil thus wiping off water....

It will telltale if level in pan increases due to water...but not show water.

X2 oil analysis..

JM7.3CW Eh!
100% correct that water will settle on the bottom, I had just driven it to the store hours before I tore it apart.
but, I would be seeing some water droplets on the dipstick.

the CDR was the same.

will know more today.
pressureize the cooling system and see if I can track down where it leaks.
hopefully the stethoscope will aid in the process.
I just hope the valley pan isn't in the same shape.
 

BDCarrillo

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Maybe mic out your valve stems and guides. If they're super loose and the seals are rubbish, you can get blowby straight on through into the valve cover
 

DaytonaBill

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^^^^
Might explain the chuff going away as the valve stems expanded upon warmup...

Steam coming in through cracked valve pockets and valve guide bosses???

I know that's not what you want to hear, but it's a possibility...
 

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