Removing intake manifold without getting coolant in engine

Jack the back up as high as you can and pull the lower rad hose off. After it has finished draining, lower the back to set the engine level. Any coolant that dribbles into the valley can easily be mopped up. It tends to pool around the lifter bores. When you remove the intake; lift it straight up and pull it straight forward over the rad; any dripage will be harmless.