Alternator flattening battery

Hi i belive my alternator is flattening my battery when the ignition is off as the red battery warning light stays on. Hav checked the connections on back of alternator and they are fine, no visible corrosion or anything. someone suggested the earth could be dodgy. wherabouts on the chassis is the alternator earthed? any other opinions or reasons why its doing this are welcome. (cnt test current in wires at the mo as dnt hav a multimeter so any other methods greatly appreciated) cheers

Diode pack goosed.

the alternater is earthed to the engine with its bolts.

It's not flattening your battery it's just not charging it. Agree with DM said diode pack is ferked. get your alternator repaired or replace it.

is it possible to get a replacment diode pack?

Yes... or take out the old one and solder in some new beefy diodes.

discomania said:

Yes... or take out the old one and solder in some new beefy diodes.

Click to expand...

We can do that to 3 kva generators too!

CharlesY

just been quoted over £200 for a new alternator from a main stealer!! AND id hav to give them my old one!!!!!!!!!!!!!!! less than £60 from somewher like mm-4x4!!

Wot enjun have you got?

I got one for a 200TDi off ebay for about £35 - £40 i you can get the part number put that in the ebay search

(mine says it was for a rover 200 series or somthing obscure)

is for a 2.5 TD

LAND ROVER DEFENDER 2.5 TD ALTERNATOR 90,110 NEW on eBay (end time 30-Nov-09 10:39:47 GMT)

the last one went for £29.99