The last two nights after work I have worked on getting my 1994 alpha drive 4.3 winterized (2 barrel version) for the first time. I've changed the oil and filter, fuel/water filter, plugs, wires, cap, and rotor. I pulled the 2 drain plugs off the exhaust manifolds and 2 lower ones off the block. I pushed a wire up inside of all 4 and found some debris in the port side block drain that allowed the water to pour out rather than trickle, the others were all clear. I want to be 100% sure all the water is out, what am I missing or what more can be done? I would imagine there is still some water inside the water circulation pump, is there a drain or do I just pull a hose? Water in the T-stat housing?
Also, leave drain plugs out and tag the ignition switch to reinstall in the spring, or put them back in? I was thinking with them out air may be able to get into the passages better and dry out and moisture and/or give a place for water to escape that may still be trapped in there when the boat is parked with the nose up for the winter....
Also, leave drain plugs out and tag the ignition switch to reinstall in the spring, or put them back in? I was thinking with them out air may be able to get into the passages better and dry out and moisture and/or give a place for water to escape that may still be trapped in there when the boat is parked with the nose up for the winter....