Water cooled. Water proof alternators.

[mudnut]

Gidday, All. I have spent the last week going over the Old Trol after taking it for an impromptu swim, or two or three. I have found some dried mud, grit and vegetation in the alternator. I am wondering if any one has fitted a water cooled alternator to their Patrol? I am getting my vehicle ready for more swimming, (as the tracks down my way are still very wet) and the standard alt is a definite weak spot. I have been looking at the Rover one but it has a different pulley.

[BigRAWesty]

Wouldn't bother mate. It's all just overkill.
In 22 years and 500,000 k's my alternator has been serviced once..
If it was an issue I'm sure blokes would change it.
And why would you bolt an inferior product on? Lol

[threedogs]

Tie a safeway bag over it or do a Bosch conversion ,
I don't like Nissan Squirrel cage style alternators
prefer fully closed body

[taslucas]

Wouldn't bother mate. It's all just overkill.
In 22 years and 500,000 k's my alternator has been serviced once..
If it was an issue I'm sure blokes would change it.
And why would you bolt an inferior product on? Lol

How many times has it been under water though?

Id be interested to look into other options as mine gets gets caked in mud

[megatexture]

Tie a safeway bag over it or do a Bosch conversion ,
I don't like Nissan Squirrel cage style alternators
prefer fully closed body

Some how I think the bag is a really bad idea as its open design is for cooling hence replacing it for a water cooled one


How many times has it been under water though?

Id be interested to look into other options as mine gets gets caked in mud

X2 and a higher amperage would be nice also

[BigRAWesty]

Mine filled with oil when the vac pump seal went. Lol.
Flushed it out and is still working fine..

[mudnut]

Oil becomes a problem if it is left in an alternator, as it attracts grit and can cause the brushes to stick open, bearings seals to fail, and current to track where it shouldn't. I started the Old Trol today, after a week of having the doors open and carpet lifted around the edges to dry out. A bearing was making a terrible noise, and I have traced it back to the alternator. As I have said before, I will be hitting some pretty wet tracks, so an enclosed alt would be a good thing. I also read some where that they are brushless too. I am hoping someone has fitted one so I can pick their brains.

[my third 256]

what about one of these
why not get a A2 humvee alt. It has a 24 and a 12 volt output in the same alt

[threedogs]

Heres what I was going to do on my other 4x4,
get some stainless steel sheet cut and rolled to suit the shape of the alternator. "splash shield"
Tig some tabs to mount it close as possible still allowing it to "breathe",
should deflect most mud and crip going into it. They are 4x4 and they go places sometimes we shouldn't take them, but
you get that on the big jobs hey

Plus the rectifier only costs $20 if you do Bosch conversion not $80

[mudnut]

I pulled the alt off, this morning and pulled it apart. I was lucky enough to find that the brushes are only 2/3 to 3/4 worn. I had a matching bearing that fitted the pulley end. I popped the seals off and washed it out with petrol. After I blasted it out with air, I regreased it with Inox LM8 (Extreme pressure, marine grade. I will also be using this all purpose grease for the whole swivel hub and C/V joint) and put the seals back on. I couldn't get the small bearing off, so I popped its seals off, washed and regreased it in situ. Thankfully, the seals went back in easily. Hopefully it should now stand up to the punishment I mete out to it.

[mudnut]

what about one of these
why not get a A2 humvee alt. It has a 24 and a 12 volt output in the same alt

I just had a search for them. They are open to the weather and flooding as well. I also think they would be too big in physical size, but 200 amps would be nice though. I also found bits of chopped up water weed and reeds in my alternator, which was disappointing. One section of track sloped to the D/side and a sheet of water came over the bonnet. There was no way to turn back, so it was do or wait a couple of weeks for the water to subside.

[mudnut]

Just saw these kits for Land cruisers, but they are bloody expensive. I wonder if they'll fit a Patrol. https://perthdiesel.store/products/rapid-power-sealed-water-cooled-alternator