Ang dapat sigurong palitan ng blades ay iyong 'clutch fan',- dahil ito ang isang cause ng overheating and consequently, poor aircon performance ng vanette,- shared fan between radiator and 1st condenser. Worse, the distance between the radiator and 1st condenser is so tight.
May mga shops na nagre-relocate ng 1st condenser (the one sharing the same fan with the radiator). And then, they will install another aux fan for it.
I had mine (model 1998) modified 3 of years ago at ayos ang performance.