Coolant mixing with the oil
#1
Coolant mixing with the oil
Hi all,
My son and I just rebuilt a '99 4.6L motor. A complete overhaul.
After running the motor for 15-25 minutes, I removed the oil filter and discovered a milky substance as I emptied it. I emptied the oil pan and found more water in the oil.
We removed the oil pan and did a coolant system pressure test, but didn't see any coolant coming from the bottom of the engine.
Is there anywhere other than the head gaskets where the 2 can mix or is this a normal occurrence during the break in period? The truck has not been driven anywhere yet.
I did not replace the head bolts with brand new. They were torqued properly tho.
Thank you,
Ed
My son and I just rebuilt a '99 4.6L motor. A complete overhaul.
After running the motor for 15-25 minutes, I removed the oil filter and discovered a milky substance as I emptied it. I emptied the oil pan and found more water in the oil.
We removed the oil pan and did a coolant system pressure test, but didn't see any coolant coming from the bottom of the engine.
Is there anywhere other than the head gaskets where the 2 can mix or is this a normal occurrence during the break in period? The truck has not been driven anywhere yet.
I did not replace the head bolts with brand new. They were torqued properly tho.
Thank you,
Ed
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