This is an often overlooked part of rebuilds. Unless you get the parts 100% clean, you will be introducing contaminants into your fresh new engine. As an engine builder / racer, I demand excellence, so should you. Pictured here is a side housing directly out of the Ultrasonic Cleaner (notice the white chalky substance, that is from the alkaline soap used, we wash that off with hot water). Missed part 1, click here
Next is the side seals and springs, install the springs, all three at once. Then we get to the lettered side seals. I like to stay on the tighter side of clearance between the corner seal / side seal. We still stay within the factory specs, but the attention to detail here matters. I always have the long side seals available if I cannot get to the gap needed for a consistent level of all rotor faces.
Once the rotors are all prepped, it is time for laying out all the components for assembly. Do it once, do it right.
Going over the side housings is critical, use a straight edge (a real one) to measure wear. The Rx8 side housings are pretty tough and last a long time. Also, it is important to grind off any casting irregularities. These small imperfections can break loose and get pushed through the oiling system wreaking havoc and tearing things up.
After all the clearances are proper, we get to the assembly. Our process has been proven over 30 years of experience and learning from some of the best in the industry. Always be learning. On the right, we are pressure testing the cooling system to ensure that all the seals are in their place. Details matter.