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The low side won't tell you a whole lot, but the pressures are approximately right. The low reading could be a little lower, but it seems that a lot of 134a systems from Volvo are set a tiny bit high. The higher reading is about right as well.
Cycling is dependent on the inside temperature, the outside temperature, the amount of refrigerant, etc.
Unless you know where you started from (how much refrigerant you have in the system) it is almost impossible to guess at if the charge is correct or not. Also, having refrigerant on top of a system at one atmosphere (no vacuum) does not allow a full charge. therefore the system won't cool as much, and it is hard to guess at the "right" pressure for the system. Since it all leaked out, it's going to all leak out again, so you'll have some opportunities to check for the leaky spot and find out what the problem is. Once you fix the leak, have the system vacuumed and charge with whatever the specs say for that system. Slightly undercharged won't kill it, but overcharging, especially on top of air, leads to poor performance.
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chris herbst, near chicago
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