Engine Antifreeze in oil

[vinzo]

Hey all!

I am currently running into an issue with my 88 fox, replaced the lower intake manifold and upper intake manifold put new gaskets on. The reason for me doing this is because one of the nipples broke on the lower intake manifold, replaced the screw and she turned on fine, went to go replace my Temperature Sending Unit and accidentally cracked the lower manifold, bought a new one. So now Did an oil change and oil filter, drained the coolant and topped it off. Now when I did the oil change, it was kind of milky. had that brown chocolate milk look to it. Then I put new oil in it and let it run for a bit, checked my dip stick and it was foamy / brown. What should I do here? It's a father son project, My dad doesn't really know how antifreeze could be in the engine, his only idea was it could just be in the oil pan and then the new oil is circulating through that and that's where the possible antifreeze is coming from? Should we take out the oil pan and clean it good? If you have any more questions and need information let me know.

 

[nickyb]

You do know coolant runs threw the lower intake? If its leaking it will go inside your engine and down to your oil pan.
Sounds like you and dad need to remove the upper and lower intake. Take some pics for us and post them.

 

[AeroCoupe]

When you pulled the lower intake did you drain the coolant out of the engine/radiator first? Even then you will get some residual coolant that will dump into the lifter valley and make its way to the pan like nickyb said. Proper thing to do is change the oil after you pull the lower and have mopped up any of the coolant in the valley. I usually change the oil filter after I fire one up and it has got to temperature. Then I change the oil and filter after 500 miles or so. I’m overly cautious and my personal opinion is stock or modified and oil change is cheap insurance.

Once you fire one up with coolant in the oil it makes chocolate milk.

 

[vinzo]

When you pulled the lower intake did you drain the coolant out of the engine/radiator first? Even then you will get some residual coolant that will dump into the lifter valley and make its way to the pan like nickyb said. Proper thing to do is change the oil after you pull the lower and have mopped up any of the coolant in the valley. I usually change the oil filter after I fire one up and it has got to temperature. Then I change the oil and filter after 500 miles or so. I’m overly cautious and my personal opinion is stock or modified and oil change is cheap insurance.

Once you fire one up with coolant in the oil it makes chocolate milk.

When we first pulled the lower intake we did not drain the coolant first, but drained it after everything was put back together before we even started the car, but when I get the chance I’ll do another oil change, should I drop the pan as well and clean that? Just incase there is some coolant left in the oil pan?

 

[nickyb]

The coolant will drain out with the oil,no need to drop the pan.

 

[vinzo]

The coolant will drain out with the oil,no need to drop the pan.

Okay thank you I’ll keep this thread posted when I get to it