Dear robertmfranklin,
Hope you're well. As you face the engine, the power steering pump is on your left (the passenger side of the engine), towards the bottom of the engine. It has a 6" diameter, smooth-face pulley. The pulley has a single groove, for a "V" belt. The air-conditioning compressor is on your right, towards the bottom of the engine. It has two large hoses that connect at the back of the unit. The compressor's pulley is 4" in diameter, with three small "wheels" on the face. This pulley has two grooves on it. The alternator is on your right, at the top of the engine. The pulley is about 2.5" in diameter, and has two grooves. The alternator's case has many ventilation slots, and you can see the copper windings through those slots.
The alternator is mounted towards the top of the engine, to help keep it dry, i.e., as far away as possible from on-road standing water. If the car is driven through standing water, the alternator is not likely to get wet. The air-conditioning compressor, being a sealed unit, will not be affected by splashing water (or even by being submerged briefly). The power steering pump, a sealed unit, also will not be affected by splashing water or even being submerged. Note: if a road is completely covered in water, it is hard to gauge the water's depth or how fast it is moving. It is thus very risky to drive through such water. The same is true of a bridge, that is submerged.
It is a good idea to mark each belt (e.g., ALT = alternator; PS = power steering, AC = air-conditioning) before removal. Inspect the belts. To do this, gently grasp the belt in each hand, with the narrow edge upwards, leaving about 3" between each hand. Bend the belt gently downwards. If cracks appear on the edge of the belt that is closest to the center of the pulley, on which the belt rides, the belt is failing. Rubber deteriorates with heat and time, losing flexibility. The cracks on the inner circumference of the belt indicate a belt that is at the end of its service life.
A broken belt means, for example, that the alternator ceases to charge the battery. The car will run, until the battery gives out. This can ruin a battery. Belts are cheap. Batteries aren't.
Hope this helps.
Yours faithfully,
Spook
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