Right Rs ain't charging.

The battery light isn't on

The battery when ticking over is reading 12.5v

Altanator is12.8v

New to this volt meter set to 20VDC?

 

Does the light work when you key on? Disconnect the blue wire and earth it with the key on, tests the warning wire circuit/bulb etc.

Check the wiring between the starter motor and the alternator, they can corrode.

If wiring ok, alternator is faulty.

You've got your meter on the right setting 20v dc.

 

Light comes on when I turn the key?

 

Check the wiring as above, also check the drive belt tension.

 

yeah, when you turn the key.

 

battery symbol on the instrument panel.

 

Yeah on the dash then goes off when the cars running

 

My battery light comes on faintly with headlights... Even tho batt voltage is at 13+ and alternator is putting out nearly 14v?
Also my rev counter rises when theres alot of electrical load, its quite funny...

Any ideas?

 

my revs rise and then it cuts out and needs jump starting

 

Could it be draining through a connection somewhere? Like through earth? Very dangerous but quite possible.

 

Measure the output from the alternator directly, as said, from what you have said, you more than likely have a bad connection after this point.

Martin

 

You pretty much answered your own question (although you don't mention a precise figure?) there is quite a power difference between the two, therefore one side of the warning light has greater power than the electrical supply, which supplies the other side of the bulb.

This is usually caused by old wiring which has resistance etc, thus increasing the load means even less power avaliable.

With the lights on, measure the power from say, the cigarette lighter, what is the figure, I suspect a discrepancy between that vs power @ the battery?

The warning setup is very basic to start off with and dosen't really tell you anything.

Martin

 

I'll look at replacing the wiring between alternator and battery then i think...
Thanks!

 

Check the difference first.

Martin

 

It was the brand new battery cheers guys


Ps don't buy a battery from halfords

 

sounds like the brushes are slightly warn on your alternator should be about 13.8v
never hurts to check your earths though main one is on the front of the gearbox

don`t buy a new alternator fortunes now and i do alot of work for a factors
get it repaiered average price 20/30 quid

Tondeur

 

Where can i get a new alternator to battery loom from?

 

Get one made any good motor factors in your area should be able to help

Tondeur

 

Seen plenty on ebay over the last couple of months.


Edit, just found 3 secondhand ones on ebay within a minute of posting this post.

 

Not interested in a 2nd hand one, it'll b as old and worn out as mine probably...

http://www.ebay.co.uk/itm/Ford-escor...item5649aa746b

This has got to be the winner!?

 

Where are you?

Tondeur

 

As already said the voltage is too low at the alternator, should be 13.5v-14v+
Yeah new wiring needed Rog, that ebay link is not the correct wiring, that's the starter to batter wiring, you need new alternator wiring, easy enough to make up your self with fresh wire and connectors mate.

 

Tondeur - Im in Essex.
Karl - I'll have a measure up and maybe order some decent thick cable.

 

Best way.
Phone local motor factors ask them where the nearest place is you can get a cable made up
Wip it off the car go in and they'll make you one in two minutes for under a tenner.
You can always up yhe cable a gauge too.

Tondeur