Last weekend, I installed the oil pump. I have a top-mounted oil cooler, so the pump is a straight pump, not the maxi oil pump. The installation manual mentions using form-a-gasket #3 or flange sealant. The Sonex assembly video mentions using Fuellube, available from Aircraft Spruce. I ordered some of this for assembly. The Fuellube is exceptionally sticky. I was worried I might tear the gaskets when applying it. Again, this was a relatively simple assembly effort.
One thing that I struggled with was finding the correct bolts. The manual does not mention the bolt part numbers. The bolts are the same thread size as the intake manifold bolts, and I double-checked the length to be sure they would not bottom out before completing the assembly. It seems there were two sets of these bolts in the kit. I will follow up on these bolts before I finish the engine.


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