How deep is too deep?

[Triathlete]

In clear water the alternator usually will survive. The dirt/mud/grime is what tends to kill them. As far as the noise, I would check all external moving parts that were submerged. More than likely they have grit in them which is grinding in the bearings. If you were that deep you will probably want to change your diff fluids also. They probably took on some water and it doesn't take much to break down the lube and make it less affective.

[VX crazy]

This would be too deep.....in mud......fried the alternator.

[MustangO4]

That's too bad. I should've taken pics but it was work, not fun muddin. Our .mil trucks kept getting stuck. Worn out tires didn't help.
I had an LAV25 for the first part of the current war and what they did (aside from being able to float and having 8 wheels) was had bilge pumps and an open top. The water got pumped out faster than it could come in through the small leaks, and only if you swamped the opening in the top, would you sink (I saw that once, nasty recovery). Maybe someone motivated could bucket the motor with plastic panels and cover most of the openings, then just run a pump for when it fills up.

[tomdietrying]

Interesting paint job. It looks like SPAZZ's VX. Is it the same vehicle?
Peace.
Tom