Battery light question

Post by ed » Fri Jul 27, 2007 8:32 pm

For some reason the battery light in the SS has come on...

Basically when im giving it the boot it goes out but when im off the loud pedal it flickers and then comes on. It also comes on in 30 zones etc etc.

Any ideas whats up with it?! TIA

gorrie · Post by **gorrie** » Fri Jul 27, 2007 8:35 pm

Does the battery light not come on if the alternator isn't charging it?

If so, maybe the alternator is gubbed..

But then, I've just stumbled in to the Technical section by accident...

Rich H · Post by **Rich H** » Fri Jul 27, 2007 8:35 pm

Alt is on its way out or an earth strap past its sell by

Post by ed » Fri Jul 27, 2007 9:07 pm

Cheers guys!

Erm, anyone know if an s2 one will work?
If not, anyone got one for the s1? cheers Ed

mac · Post by **mac** » Fri Jul 27, 2007 9:22 pm

I would check the cheap things first Ed - like the earthing connections

mac

robin · Post by **robin** » Fri Jul 27, 2007 9:31 pm

Earth straps is a red herring I am afraid. The light comes on when the regulator detects that it isn't producing the required voltage. That's measured locally, nothing to do with the voltage at the battery. If there was excessive resistance in the earth strap that would actually make it easier for the alternator to get the voltage up.

S2 alternator is different, but I think you can make it work by transplanting some of plastic covers at the back from one to the other.

You should also check the wiring is OK - there are two wires at the back of the alternator and they sometimes break - however this would result in the battery running flat and the light not coming on.

I have an S1 alternator here - not in great condition (the chassis is cracked) but yours for the asking ...

Cheers,
Robin

Victor Meldrew · Post by **Victor Meldrew** » Fri Jul 27, 2007 9:34 pm

robin wrote:Earth straps is a red herring I am afraid. The light comes on when the regulator detects that it isn't producing the required voltage. That's measured locally, nothing to do with the voltage at the battery. If there was excessive resistance in the earth strap that would actually make it easier for the alternator to get the voltage up.

S2 alternator is different, but I think you can make it work by transplanting some of plastic covers at the back from one to the other.

You should also check the wiring is OK - there are two wires at the back of the alternator and they sometimes break - however this would result in the battery running flat and the light not coming on.

I have an S1 alternator here - not in great condition (the chassis is cracked) but yours for the asking ...

Cheers,
Robin

Stu160's spare alternator is sat in my garage, its a refurbed unit. I am sure if you give him a shout he will offer it to you at the same low price he offered it to me....

Post by **ironside** » Fri Jul 27, 2007 11:19 pm

The alternator isn't very old

Rag_It · Post by **Rag_It** » Fri Jul 27, 2007 11:39 pm

Everyone that has an alternator should bring it to KH if you get this as Ed will pay ze money! Currently on second bottle of wine after 5 beers, so excuse my sh*t post and my rank chat tomorrow at KH!

Cheers,

Dave

BiggestNizzy · Post by **BiggestNizzy** » Fri Jul 27, 2007 11:49 pm

robin wrote:
you can make it work by transplanting some of plastic covers at the back from one to the other.

Cheers,
Robin

Thats what was wrong with my Metro's alternator a beardy bloke at lucas swapped it for a new plasticy bit (it has a name a does a job of some description but I cant remember)

know any auto electricians ?

Post by ed » Sun Jul 29, 2007 2:13 pm

Turns out it was the battery moving in its mount and shorting the negative! Cheers for all your help!

robin · Post by **robin** » Sun Jul 29, 2007 4:59 pm

I told you to get that fixed, didn't I?

Cheers,
Robin

hiscot · Post by **hiscot** » Sun Jul 29, 2007 5:26 pm

BiggestNizzy wrote:
robin wrote:
you can make it work by transplanting some of plastic covers at the back from one to the other.

Cheers,
Robin
Thats what was wrong with my Metro's alternator a beardy bloke at lucas swapped it for a new plasticy bit (it has a name a does a job of some description but I cant remember)

know any auto electricians ?

most have a removable regulator fitted to the rear its this that quite often goes

Rich H · Post by **Rich H** » Sun Jul 29, 2007 9:24 pm

robin wrote:I told you to get that fixed, didn't I?

Cheers,
Robin

Go stand in the corner Ed

Post by ed » Sun Jul 29, 2007 10:00 pm

robin wrote:I told you to get that fixed, didn't I?

Cheers,
Robin

Did you, i dont recall that!

Is my only option the eliseparts one or can i modify the current one?