Eletrical problem...

malcsmaesty · 27th December 2003, 17:13

Hello all!!!
I have a small electrical problem with my TD

When i turn off the ignition,my battery light illuminates and stays on,even with the key removed.It doesn't illuminate at position III.
Am i right in thinking my alternator is bu

ered?
thanks,
Malc.

H48HPE · 27th December 2003, 17:21

definitely a broken rectifier on the alternator. disconnect your battery or it'll go flat because its discharging through the alternator.

answer is a new alternator or get the old one fixed by having the diodes replaced (presumably thats what it is)

Have you charged the battery whilst its still wired to the car recently? that can cause that particular problem.

andy

Dave · 27th December 2003, 17:34

The rectifier and brushes are built into a small removable unit on the end of the alternator - you can swap this over for a new one... much cheaper than having the entire alternator re-conned.

Dave.

malcsmaesty · 27th December 2003, 17:36

Thanks for that Andy,i had a feeling thats what it was.Had a new battery this time last year,so i haven't had to charge it at all.
i have already taken the precaution of disconnecting the +ve feed,cheers mate.
malc.

malcsmaesty · 27th December 2003, 17:38

Quote:

Originally posted by Dave
The rectifier and brushes are built into a small removable unit on the end of the alternator - you can swap this over for a new one... much cheaper than having the entire alternator re-conned.

Dave.

Cheers Dave,any ideas on where i could purchase these parts? possibly a Rover dealer?

H48HPE · 27th December 2003, 17:50

Id get a whole unit from the scrap yard, and just swop the whole lot over, then Id hang onto the old one and get the parts for it when you get chance and then fix it as a spare. a second hand one will probably cost a tenner.

it should be a lucas A127 65 Amp alternator you need.

the part number for the rectifier from rover is BAU 5813 (should you choose to go down that path)

Andy