Valve cages installed, press fit and high temperature Loctite , hole and thread for spark plug , inlet and outlet holes
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I leave a sharp edge in the valve cages, lapping with a fine liquid abrasive (grit 800) for 2 minutes with a lapping tool and obtain a good seal.Great work! Nice castings! How much did you have to lap the valves to get a good seal?
That's my aversion to using cages. I know some have good luck with them but I haven't. When making the cages with the seats already cut if you get a deformity and have to cut or heavily lap the seat then the seat becomes too wide. Here again not that it won't work but the seat area should be kept as small as possible. On a engine of your size that would make them in the .025-.035 range.
The pushrod has a hole to allow to screw or unscrew the ball screwFoketry:
How do you tighten the ball/screw units into the pushrod? Can you tighten them from the back side, or are they held in with Loctite?
Don
Could you give more detail about these. I'm not sure what they are. Do the balls rotate like a ball point pen? - TerryView attachment 158005
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