Omega Owners Forum

Please login or register.

Login with username, password and session length
Advanced search  

News:

Please play nicely.  No one wants to listen/read a keyboard warriors rants....

Pages: [1]   Go Down

Author Topic: Halford's alternators...No thanks  (Read 1156 times)

0 Members and 1 Guest are viewing this topic.

Ken T

  • Omega Baron
  • *****
  • Offline Offline
  • Gender: Male
  • Stockport
  • Posts: 2269
    • View Profile
Halford's alternators...No thanks
« on: 06 March 2011, 00:26:08 »
Remember I got taken for a ride by Halfords and charged £170 for fitting a recon alternator. Well, the car has been slightly hesitant starting recently, so I measured the battery volts, at tickover after running for a few mins. Its down at 12.5V  :'(   

What's going on ?.

Ken
Logged
I used to be indecisive; now I'm not so sure...

henryd

  • Omega Lord
  • *****
  • Offline Offline
  • Gender: Male
  • west cornwall
  • Posts: 8767
  • VW Touareg R5 tdi Auto
    • View Profile
Re: Halford's alternators...No thanks
« Reply #1 on: 06 March 2011, 00:27:40 »
you ain't charging properly :(
Logged
other rides 
  mk3 Volvo v70 2.0 Diesel ,Citroen C2, Pug 306 cabriolet
  Sterling elite trekker pikey wagon

Vamps

  • Offline Offline
  • Gender: Male
  • Bishop Middleham, Co Durham.
  • Posts: 24708
  • Flying Tonight, so Be Prepared.
    • Mig 2.6CDX and 2.2 Honda
    • View Profile
Re: Halford's alternators...No thanks
« Reply #2 on: 06 March 2011, 00:32:39 »
Take it back, must be under some sort of warranty..... :(
Logged

Seth

  • Omega Lord
  • *****
  • Offline Offline
  • Gender: Male
  • South Wales Valleys
  • Posts: 6646
  • If there's a 'system' - play it ... !
    • '99 2.5TD GLS Estate
    • View Profile
Re: Halford's alternators...No thanks
« Reply #3 on: 06 March 2011, 01:36:53 »
Securely connect a jump lead from the battery negative post to somewhere like a manifold stud on the engine.

Measure the output then.

If it returns to specified output, then you have an earthing problem, which is quite common.
Logged
Gettin' seriously hacked-off by those who ignore the wisdom of proven experience ... and Forum guidelines.

Auto Addict

  • Administrator
  • *****
  • Offline Offline
  • Gender: Male
  • North Birmingham
  • Posts: 13552
  • Back to Vx to keep TB happy
    • Astra K Elite ST
    • View Profile
Re: Halford's alternators...No thanks
« Reply #4 on: 06 March 2011, 07:23:13 »
Quote
you ain't charging properly :(

...but they are.... ::)
Logged
I like red cars

tunnie

  • Get A Life!!
  • *****
  • Offline Offline
  • Gender: Male
  • Surrey
  • Posts: 37526
    • Zafira Tourer & BMW 435i
    • View Profile
Re: Halford's alternators...No thanks
« Reply #5 on: 06 March 2011, 08:23:17 »
check the voltage directly off the alternator, poor voltage could be the crimp to the negative battery terminal....
Logged

Ken T

  • Omega Baron
  • *****
  • Offline Offline
  • Gender: Male
  • Stockport
  • Posts: 2269
    • View Profile
Re: Halford's alternators...No thanks
« Reply #6 on: 07 March 2011, 23:06:46 »
Quote
Securely connect a jump lead from the battery negative post to somewhere like a manifold stud on the engine.

Measure the output then.

If it returns to specified output, then you have an earthing problem, which is quite common.

Thanks, I had forgotten about bad earth connections. I cleaned the negative terminal and attached leads, and the battery volts are up to 13.2V ish. Close enough  :y

Ken
Logged
I used to be indecisive; now I'm not so sure...

Kevin Wood

  • Global Moderator
  • *****
  • Offline Offline
  • Gender: Male
  • Alton, Hampshire
  • Posts: 36287
    • Jaguar XE 25t, Westfield
    • View Profile
Re: Halford's alternators...No thanks
« Reply #7 on: 08 March 2011, 10:08:19 »
Quote
check the voltage directly off the alternator, poor voltage could be the crimp to the negative battery terminal....

The positive terminal is the usual one to go, because the wire from the engine flexes a little as the engine moves.

Quote
Thanks, I had forgotten about bad earth connections. I cleaned the negative terminal and attached leads, and the battery volts are up to 13.2V ish. Close enough

Still not enough to keep the battery fully charged unless it improves at higher RPM, though. :-/

Kevin
Logged
Tech2 services currently available. See TheBoy's price list: http://theboy.omegaowners.com/

henryd

  • Omega Lord
  • *****
  • Offline Offline
  • Gender: Male
  • west cornwall
  • Posts: 8767
  • VW Touareg R5 tdi Auto
    • View Profile
Re: Halford's alternators...No thanks
« Reply #8 on: 08 March 2011, 10:20:27 »
Quote
Quote
check the voltage directly off the alternator, poor voltage could be the crimp to the negative battery terminal....

The positive terminal is the usual one to go, because the wire from the engine flexes a little as the engine moves.

Quote
Thanks, I had forgotten about bad earth connections. I cleaned the negative terminal and attached leads, and the battery volts are up to 13.2V ish. Close enough

Still not enough to keep the battery fully charged unless it improves at higher RPM, though. :-/

Kevin

yep,agreed,voltage at around 2k revs should be around 14-14.3 volts
Logged
other rides 
  mk3 Volvo v70 2.0 Diesel ,Citroen C2, Pug 306 cabriolet
  Sterling elite trekker pikey wagon
Pages: [1]   Go Up
« previous next »
 

Page created in 0.02 seconds with 18 queries.