Sure can, I assume you are using a infrared heat gun? You can easily pick out a weak cylinder by checking each exhaust port, the cool one is not burning properly for some reason.
A blown head gasket, depending on where it blows out, should effect two cylinders if it goes between them. If it blows into the coolant, you should see it bubble in the radiator or blowing coolant out on the ground. A leak into the oil system will show up as excessive blow-by in the draft tube.
A cracked head can let coolant into the cylinder and be burnt with the fuel mixture, depending on how much is going in, you may never smell it. Your coolant level will drop if this is the case. Pull a couple of plugs, the crusty white one is using coolant. Dirty and oily is not firing, light tan is perfect.
Valve adjustment can cause a miss if the valves are held open or a clatter if they are loose. Burnt exhaust valve can let compression leak out creating a weak cylinder. Bad spark plug, wire, cap can also cause this.
Start with the basic tune up then valve adjustment. A lot of heating issues can be solved with a tune up.
Joe
