Engine oil in coolant

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JBarrios

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Feb 18, 2012
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I replaced the head and gasket on a bobcat 341, but engine oil getting into coolant. No coolant in the engine oil. Does this indicate one problem over another?
 

Tazza

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If the block was warped it could allow the oil into the radiator, even a hole in the water jacket of the block.
Was the old head cracked?
 
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JBarrios

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Feb 18, 2012
Messages
8
If the block was warped it could allow the oil into the radiator, even a hole in the water jacket of the block.
Was the old head cracked?
Yes the head was cracked and bad head gasket. Runs good now with new head and gasket, but just oil getting into the coolant.
 

OldMachinist

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Yes the head was cracked and bad head gasket. Runs good now with new head and gasket, but just oil getting into the coolant.
Have you flushed the cooling system since you put on the new head and gasket? It could be just oil that got in the coolant passages from the old cracked head.
 

Tazza

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Yes the head was cracked and bad head gasket. Runs good now with new head and gasket, but just oil getting into the coolant.
You did re-tighten the head after it was warmed up? The gaskets do crush a little once warmed and need a tighten up.
Other than that, not reallys ure where it can be coming from unless there is a crack in the block or the head has a manufacturing flaw. You did put a new O ring on the oil squirter on the block when you did the gasket?
 

Tazza

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You did re-tighten the head after it was warmed up? The gaskets do crush a little once warmed and need a tighten up.
Other than that, not reallys ure where it can be coming from unless there is a crack in the block or the head has a manufacturing flaw. You did put a new O ring on the oil squirter on the block when you did the gasket?
OldMachinist - i was thinking that too... Hopefully it is that simple.
 

JohnB

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Feb 25, 2013
Messages
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You did re-tighten the head after it was warmed up? The gaskets do crush a little once warmed and need a tighten up.
Other than that, not reallys ure where it can be coming from unless there is a crack in the block or the head has a manufacturing flaw. You did put a new O ring on the oil squirter on the block when you did the gasket?
Yes, re-torqued head bolts. Computer been down, sorry for the delay in response
 

alextmh

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Jun 21, 2023
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6
Hello Jhon
I'm having the same problem
Can you please let me know what was the solution for this problem

Thank you
 

cdmccul

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Jun 18, 2013
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504
Holy Old Thread, Batman!

Of the posters to this thread, one last logged on in 2015. One in 2013! Then Tazza last logged on Monday.
 

alextmh

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Jun 21, 2023
Messages
6
If the block was warped it could allow the oil into the radiator, even a hole in the water jacket of the block.
Was the old head cracked?
The head is fine they sent it to check and had nothing wrong with the head
 
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