is my alternator charging ?

Post by **jeffdub** » 05 Dec 2011, 20:02

wonder if someone could give me some advice please ? i recently had a problem with the battery light flashing on and off which i traced to a dodgy connection , since then my battery light has been on but very dull you can only notice it at night with no lights on and even then its very faint, due to a starting problem which i put down to the battery ( which i now know is the oilite bush ) i bought a new battery , i decided to put my old battery on charge to see what state it was in and within 10 mins the charger said it was fully charged ! does this mean my alternator is ok and may be another dodgy connection somewhere ? i had a multimeter on the battery when running and it said 13.6 volts any advice is gladly received jeff

Post by **kevtherev** » 05 Dec 2011, 20:22

Hi Jeff
I had this very same issue for ages.. turned out to be the diode in the alternator.
It stayed glowing for ages till it died in cornwall six weeks later.

I had to replace it, but I believe you can repair it with a new diode

Post by **jeffdub** » 05 Dec 2011, 20:26

hi kev thanks for that mate im not sure if i should just get a new alternator and have done with it ? i was qouted £94 with mine as an exchange

Post by **BOXY** » 05 Dec 2011, 20:28

within 10 mins the charger said it was fully charged !

Check the voltage after leaving the battery off charge for 24 hours. If you check it as soon as you take it off charge you'll just be getting a surface charge reading. This value can drop off dramatically after a few hours if the battery is u/s. The 13.6v with the engine running is ok. The range is normally 14.4v to 13.5v.

Post by **kevtherev** » 05 Dec 2011, 20:29

ouch!

bit steep that price mate.
I paid £60 without exchange.. in Cornwall

Post by **kevtherev** » 05 Dec 2011, 20:32

jeffdub wrote:hi kev thanks for that mate im not sure if i should just get a new alternator and have done with it ? i was qouted £94 with mine as an exchange

Can you take it to an alternator repairer near you?
He can check it out and tell you if the diode is on it's last legs...

Post by **jeffdub** » 05 Dec 2011, 20:34

not sure where i would find one kev but there must be somewhere in birmingham i will have a scout around thanks for your advice lads

Post by **kevtherev** » 05 Dec 2011, 20:56

166 Stockfield Road, Birmingham , B27 6AU
this fella is a good alternator man, I've had my brushpacks from him.. and Califoria dreaming (red westie)

Post by **jeffdub** » 05 Dec 2011, 21:44

cheers kev i think i know that place

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