My WD-1220 Engine Mount came with gussets that do not show in the photos in the plans.
The instructions in Page 46-06 Steps 3-5 did not work with my engine mount.
Vans support suggested this alternative which worked for me:
"The electrical clamp/harness up top will have be moved out of the way. Start with aligning the top right bolt (viewed from the rear), then the bottom right. Twist the mount around the rear of the engine and carefully pull it around the water pump tube until the mount bolt aligns. The top left bolt should be close at this point and you can wiggle the mount into alignment and tighten the bolts."
Rich
RV-12 120259
The instructions in Page 46-06 Steps 3-5 did not work with my engine mount.
Vans support suggested this alternative which worked for me:
"The electrical clamp/harness up top will have be moved out of the way. Start with aligning the top right bolt (viewed from the rear), then the bottom right. Twist the mount around the rear of the engine and carefully pull it around the water pump tube until the mount bolt aligns. The top left bolt should be close at this point and you can wiggle the mount into alignment and tighten the bolts."
Rich
RV-12 120259