306 charging problem

hi.
Car is a 306 Turbo diesel P reg.
Yesterday I noticed that the battery warning light was off when I
turned the ignition, and its stayed off ever since except for the
occasional stuttering dim glow.

1. Have taken voltage of the battery on its own = 12.45 volts (sounds
OK). Same voltage is found the alternator - so I'm guessing no bad
earths.
2. When car started voltage of battery drops to about 11.5 volts and
will climb very slowly if nothing is switched on (otherwise it goes
down steadily)
3. Voltage across the points at the alternator is 4.5v and climbs to 5
if engine is accelerating. But it doesnt seem to make much difference
to the battery being charged faster.
4. When you switch the car off again the battery is at 12.2 volts and
then climbs steadily until its 12.45 volts again (!)

I've checked the general cables coming from the battery (including
cleaning the earth cable) but it hasnt made any difference.

What do you think is shot : is it the alternator or the battery?
thanks

 

Hi, The battery voltage should increase to approx 13.8 volts when the engine
is running at approx 2000 rpm. If this is is not the case the altenator is
defective.
Regards
Daveg

 

check Alternator brushes are not worn or dirty. sticking,or could be
internal fault in Alternator or votage regulator,

 

Thanks guys,
I guess I am looking at a new alternator then, GSF do an exchange one
for £94. Any ideas if I can get it cheaper than that?
cheers

 

Thanks guys,
I guess I am looking at a new alternator then, GSF do an exchange one
for £94. Any ideas if I can get it cheaper than that?
cheers

Scrapyard?
But as Chris has said, it is worth just checking the brushes are making
contact on the sliprings. Could save a bit of money.

 

Try Camerley Autos or Pug spares.

 

Camberley auto factors £160 and thats for a recon!

Aldershot car spares had loads but they couldnt find one that matched
mine.
cheers
Kali

 

try pug spares on pugspares.co.uk eurocarparts.com they should
help you

 

Also try carparts-direct.co.uk they are very helpfull

 

Camberley auto factors £160 and thats for a recon!

Aldershot car spares had loads but they couldnt find one that matched
mine.
cheers
Kali
How close a mach were you trying to get? Several makes were fitted to all
Peugeots, and one from a different model Pug will also fit.

 

I took it out last night to have a look - it has single mounting points
on top and bottom, All the ones that I was shown had at least one
double mounting bracket (unless the double actually fits too?). Also
the points on mine were on the face of the cylinder (IYSWIM) rather
than the end. The alternator is a Bosch but the markings on it arent
that helpful, other than its 80 Amps. It actually looks fairly new
bizarrely enough.

I should mention at this point that the block of the engine was
replaced with another one by a mechanic, so it is a XUD9TE but perhaps
a later or earlier version.