BMW UNDER PRESSURE
One of the most difficult heads to pressure test is the BMW DOHC 6 cylinder. It is nearly impossible to plug the water outlet on the side of the head, until now. A “T handle drain plug” from a boat is the perfect size, and easy to install and remove. It expands inside the water port for a perfect seal. No need to waste a freeze plug, and they only cost about $5.00 at the boat shop.

Scott Fisk
Fisk Automotive Machine Shop
Hanahan SC
May, 2016