Vehicle & Technical > Defender

alternator wet

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kizz81:
thanks, if theres no way of keeping them dry do you no where the cheapest place to buy them from is and what price?

Dave B:
If you are using the old type Lucas alternators (AC/AC-R type) you can replace the bearings with identical size parts, but sealed, so they keep the mud out, of the bearings at least...  Any decent engineering factors place will be able to supply them.  I've done several in the past, still have one here, but a low power unit (40A) but now you cant get replacement brushes, oh well.....

Out of interest, they are identical to those used on the front wheel of my old MT bike too.

Lada used to use fully waterproof alternators I seem to remember, on the Niva at least.

Dave B.

simonred90:
the bearings are not critical to alternator life and they charge regardless of condition so i would disregard them all togethger. it is usually the brushes and or the regulator on back of the alternator body that fail. these parts cost only a few quid and can be repaired at any specialist auto electical shop. some places atually specialise in alternators. i put a new regulator and had one fully tested with guaranteed parts for only 30quid

extreme90:
yeh true but the bearings always collaps on me
its never not charged
its just a fact of life, alternators simply wernt designed to be submerged in s*** and get caked in mud
not even marine alternators survive a season on some 3lt gm engines i see  :shock:
just spray with wd40 to aide it and let it be
im gonna make a shiled to to protect it abit, when its done ill send u a few pics
dan

kizz81:
so whats the best thing i could do?

if the shield works let me no :)

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