Passenger side, just in front of the motor mount.. STRANGE place for a leak. It leaks approx half oz of fluid AFTER the car has fully cooled for about 24 hours it will appear. I pressure tested to 10 psi on a fully COLD block and it leaked from what appears to be coming from the seam where the center iron and front housing meet. Thoughts??

 

If you pressurized the system and actually saw the antifreeze coming from that spot, then I'm thinking outer water jacket seal compromise.

 

Pressurized to 10psi on a fully cold (24 hours no driving) engine. Saw the drip originate from that location. It never leaks hot. Only leaks the next day after parking in garage. I am going to re-test tonight with the belly pan off the car and clean everything very well and watch for the drip again from under the vehicle. It seems very far outside of the water jacket but fluid can seep anywhere for sure.

Thanks,
-M

 

SOLVED :

Cleaned everything and re pressurized to 13 lbs on a cold motor. After a few min's of looking and watching the drip accumulate I saw a small puddle forming under the alternator at the pump housing / front plate seam. It would drip down the passenger side of the front iron and travel along the oil pan/block seam until it dripped off just before the center iron... I snugged the water pump bolts and it stopped. Ideally I will pull all of this apart and re-gasket. But it's been holding for 2 hours without a drop now.

!!! -M

 

Much simpler and better cause ... and solution. I am happy for you.