Originally Posted by velociabstract
I went to top off my supercooler today and guess what. It was full! Every distilled drop I tried to put in ended up on the ground. Now I'm wondering where that crud came from. I have a Needswings catch can, and it's working BTW. Not huge amounts of oil is collected but always some. When I cleaned the filters I oiled them pretty heavily but???? The throttle body was clean. Now I don't think it's the intercooler. Who can solve the riddle?
Les
You need to pressure test it. It may be such a small hole that under normal circumstances it doesn't leak but remember that our cooling system is pressurized so test it at 10psi and then report back. Easiest way to do this is take the IC and fill it with water mixed with red food coloring and then put a white paper towel in the openings. Set it so the coolant inlet and outlet are facing up and the paper towel in the bottom where it connects to the Y-pipe. test it with 10psi for 24 hours and if the rag is red, you know definitvely that your core is leaking. If it's not, then perhaps it's just blow-by.
Good luck