When you say condensor is 'not in great shape' do ya mean its got stuff wedged between the fins or fins are bent or ya think somethin's wrong inside? If its clean on the outside and A/C works better w/water on it you prolly need a fan clutch. The condensor MUST have adequate airflow to work right. ESPECIALLY w/134a. You are already asking it (cndnsr) to do more than it was designed for when you switch gas.

Same philosophy applies to evaporater. If the outside is clean, ie not full of leaves and dirt, it should exchange temp adequately.

Again, if pressures are high, AND you have measured the right amount of gas (be sure to compensate for 134a, it requires like 3/4lb of 134a for 1 lb R12), you are prolly looking for poor airflow over condensor and/or blockage in the system (flush it next time you open it - FOR GODS SAKE MAN <img src="/forums/images/graemlins/scared.gif" alt="" />, its cheap and easy).

Also, yank the evap out and look at it next time you open the system (it looks harder than it is). If you don't have strong airflow out of the vents, your evap housing is prolly full of leaves and crap.

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