ok.. heres my problem... im aware that my lower unit leaks water as i change the gear lube every few trips out and is a slight (not milky white or anything) off color of normal new gear lube.. anyways.. heres what im asking... i pulled the boat out of the water yesterday and tilted the motor up, immediately after doing this.. a white milky liquid (with bubbles) was coming out of the water intake holes. this is the only place it was coming from? what do you guys think is my problem ( i already know about the leaky LU ) if that isnt the cause though, what can it be? a head gasket?? tell me it isnt so... . btw.. its a 1970 evinrude 33 hp. model number 33052M. thanks in advance... compression in both cylinders is very close to 115.