eeek!! me again - alternator???

sarahjaneking · Post by **sarahjaneking** » Fri Sep 03, 2010 4:12 pm

ok finally sorted the stop solenoid on the txd, now the battery/alternator is playing up so now it stops - but only if you jump start it to begin with.

voltage across battery is 11.78, with engine running 11.40 so is it definitely the alternator???

is it easy to change???

and lastly is this the right one [/url]http://cgi.ebay.co.uk/Peugeot-405-TD-Ci ... _500wt_928

of course I'd really like it to be the battery but we'll see

thanks in advance

Sarah x

Dollywobbler · Post by **Dollywobbler** » Fri Sep 03, 2010 4:37 pm

Aye, sounds like it's not charging. Should be somewhere around 14v across the terminals when it is charging.

Have a bit of a wiring check first, just in case something has come adrift. It's unusual for an alternator to just suddenly stop charging - they usually just start putting less and less back into the battery.

Gibbo2286 · Post by **Gibbo2286** » Fri Sep 03, 2010 5:14 pm

If any electric welding has been done on the car while the battery was connected it could have just blown the diodes in the alternator, a regulator pack from the motor factors might be all you need. Gibbo.

electrokid · Post by **electrokid** » Fri Sep 03, 2010 6:31 pm

Fully charged battery is around 13.8v - flat when it get's down to 11.6v

With the enigne running and your meter attached to the battery give the alternator a few taps keeping out of the way of the moving belt / front end. If the voltage shows any signs of moving upwards then it could be worn brush(es) otherwise it's something else.

Post by **docchevron** » Sat Sep 04, 2010 3:32 am

does the battery light illuminate on the dash when the ignition is turned on?

sarahjaneking · Post by **sarahjaneking** » Sat Sep 04, 2010 1:05 pm

docchevron wrote:does the battery light illuminate on the dash when the ignition is turned on?

no it doesn't, but it used to, and thinking back it flashed on when running the other day but disappeared when I gave it some revs.

electrokid, be honest, you just want my neighbours to think I'm a total loon don't you

needless to say I shall be giving it a go shortly

No electric welding just solenoid in, solenoid out, solenoid in, solenoid out repeat ad infinitum

and then a couple of jump starts so I shall check that out as well

looks like I'm going to be busy today - never mind concert at the cricket ground tonight YEH!!!!

electrokid · Post by **electrokid** » Sat Sep 04, 2010 10:39 pm

electrokid, be honest, you just want my neighbours to think I'm a total loon don't you needless to say I shall be giving it a go shortly

They'll get used to it - mine have