1. how "water resistant" are alternators? i've seen pictures of isuzus playing in water. do they escape unharmed or are they sure to have electrical problems?

2. are the isuzu 4 cylinder alternators located relatively higher than the 6 cylinders? the reason i ask is that most of the isuzus that i've seen with snorkels have been on gen1 troopers. that being said, i know that snorkels are available for the gen2s.

3. is a snorkel overkill? i mean will the isuzu get into trouble before water even has a chance to reach the air intake given the alternator's relatively low position?

4. why is it necessary for the volts to decrease as the engine is under load and why does it become unnecessary when the lights are on? thanks, taro