Vehicle & Technical > Defender

Sealing up an alternator - is it possible ?

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ringo:
I fitted an alternator last august after a pay and play day seemed to kill it.

6 months later, i've had to change it again (after yet another pay and play day!). This time i had a look at it and the brushes were worn away.

It seems that these QA alternators dont like wading and the like. A small bit of grit in there and it destroys the alternator.

I was wondering what options are opened to me regarding stopping this. I dont really want to be changing alternators every 6 months (this one is under warranty but the landy's been off the road for a week).

Is it possible to seal them ? I somehow doubt it.

What do people in the desert use ?

Thanks

Ringo

Evilgoat:
No, airflow is needed to keep it cool. Seal it and it'll melt instead :)

Preventitive maintainance will help. Some nice thick grease on the bearings from time to time will stop gunk getting into them. Check the brushes from time to time as these are probobly what is giving out. And last but not least, give it a good cleaning out after you've had a play.

tonycougar:
How do you clean it out???

Budgie:
Well, if you've just thrown it into a muddy puddle then a pressure wash, with the engine running, ain't going to do any more harm is it.  :wink:

But keep the nozzle at a distance from the front of the alt so as not to blast the wiring inside.

Evilgoat:

--- Quote from: "Budgie" ---Well, if you've just thrown it into a muddy puddle then a pressure wash, with the engine running, ain't going to do any more harm is it.  :wink:

But keep the nozzle at a distance from the front of the alt so as not to blast the wiring inside.
--- End quote ---


What he said. Lots of grease on the terminals helps too, this will come off with a pressure wash and fresh stuff can be applied.

Just FYI I'm on Alternator 4 in a year :)

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