Greetings,

 

One of the things that's always bothered me about making a PP housing is leakage.  I've heard very experienced folks say that eventually, any PP housing you make will leak, and it's easy for me to imagine that happening.  I don't think I've heard the same thing about factory housings though.  How are the ports installed in the factory PP housing? 

I never came up with leaking as a problem. After the tube is inserted through the housing, the whole thing is filled solid with epoxy. No water is in the housing to leak anywhere.

 

If you like, you could also fill adjacent irons areas with epoxy so there would be no coolant there. I never had epoxy in the runners come loose. I drilled a few holes through the port floor into the coolant chambers to help lock in the epoxy. Never had a leak.

 

Lynn E. Hanover