Building an FA20 Race Engine for Michele Abbate: Part 2

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Howard uses a valve spring compressor tool to hold the retainer down so the valve keepers can be installed. Now the head subassembly is complete.

Previously, Howard had measured the crank and block and determined what bearing sized needed to be used for the King XP bearings. Here, Howard installs the main bearings into the block.

Howard applies assembly lube to the bearings.

Howard applies Felpro Grey sealer in between the case halves.

Howard also lubes up the crank journals with engine oil.

The crank is set in the block.

 

 

4 comments

  1. I’m curious why the pistons were coated after wpc treatment. Wouldn’t the tiny dimples caused by wpc be smoothed out or removed by the coating building up? Was wpc just for strength benefits? I’m also confused because I thought I’d read wpc treatment could be done to coated surfaces. Did they mean something harder like chrome?

    Thanks in advance for any reply

    1. I was using the WPC for ring groove freeness and longevity and to reduce the galling of the piston up there. WPC can be done to stuff like nitriding and hard chrome but it will remove organic coatings.

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