[Bill Pritchard]

I'm planning to replace the umbrella type valve seals on my Camaro's 350 small block engine with the engine in the car, because it's oil fouling the plugs on cylinders 6 and 8. I have a plan in my head and I just want to make sure I'm thinking correctly.

I intend to bring the number 1 cylinder up to TDC. At that point, I believe the piston in number 6 cylinder would also be at the top of its stroke, albeit between the exhaust and intake strokes.

I have the tool that screws into the spark plug hole and attaches to compressed air, in order to hold the valves in the closed position. I'm thinking I should be able to replace the seals on both the number 1 and number 6 cylinders at this point. Once that's completed, I plan to rotate the crank 180 degrees and then I should be able to replace seals on cylinders 8 and 5. Another 180 degree rotation to do cylinders 4 and 7, and finally cylinders 3 and 2.

Does that sound logical? I don't want to screw this up and have to pull the heads off. Thanks in advance.