Came across this picture. Must say, i'm not a watercooled guy at all, but this guy has an interesting idea. He taps all four corners of the heads for better waterflow. System is self-bleeding, as hot water and air-bubbles rises to the top. Nicely thought out.
I would change the fan from a suck-through to a blow-through, and let the used hot air exit over the transaxle.
![Image](https://www.aircooledvwsa.co.za/images/pbucket3/albums/d88/Joedelvw/wasserconversionrunning003.jpg)
Staying Aircooled is so much nicer.
Do'nt assume anything- (While doing fault-finding).