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valve adjustment questions

I have aluminum Yates C3L heads I believe, with Jesel Rockers.

I think I can figure out the correct order in which to adjust the valves, my cam sheet has other info on it as well, but I think I can figure out the specs.

It says "valve adjustment .020 for both intake and exhaust".

When I go about adjusting these valves, do I do the adjustment with the engine cold, or hot?

The cam sheet goes on to give info that I can somewhat understand, lobe lift, duration at .050, lobe separation, but it doesn't mention anything about whether I should adjust my valves with the engine cold, or hot.

These are Yates C3L heads with Jesel Rockers, so any help or info I can gather about this setup would be appreciated.


I'd like to nail the valve adjustment, make it PERFECT, then it'll be back to enjoying the car.

Roger mentioned he had adjusted the valves 3 weeks prior to my buying the car, but at this point, I want to check everything myself, so I know what is what about this engine personally.

I'm sure it'll take a while to get to know the car, and the sounds she makes, but I want to ensure none of the noises I'm hearing are from out-of-adjustment valves.

She's running great presently, but adjusting the valves is something I need to learn how to do anyways, so I might as well get that done earlier than later.

Thanks for any help or comments in advance.
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