| View previous topic :: View next topic |
| Author |
Message |
jeffo
*
Age: 58
Zodiac: 
Joined: 06 Aug 2007
Posts: 18
Location: bradwell newcasle u lyme
|
 Posted: Sun Sep 02, 2007 8:14 Post subject: 3 light syndrome??? |
 |
|
| hi everyone, having battery/altenator probs. have been reading topics and replies. very usefull but what is the 3 light syndrome ??? |
|
| Back to top |
|
 |
Google
Sponsor
|
| Posted: Sun Sep 02, 2007 8:14 Post subject: Google Ads keep the POCUK free to join! |
|
|
|
|
| Back to top |
|
|
noiseboy72
*****
Joined: 07 Nov 2004
Posts: 959
Location: Lincs
|
| Posted: Sun Sep 02, 2007 8:30 Post subject: |
|
|
Hi there.
Basically, when the alternator diode pack starts to die, it dumps AC onto the electronics. This causes the oil, alternator and fuel filter light (Sometimes different circuits, it depends on the model) to dimly light up when the engine is at tick over. As you rev the engine, they go out.
The result is that the battery is also getting AC rather than DC and this will shorten its life. You need to change the diode pack in the alternator and to be honest, its worth swapping the whole thing for a reconditioned unit.
I hope this answers your question ? |
|
| Back to top |
|
|
jeffo
*
Age: 58
Zodiac:
Joined: 06 Aug 2007
Posts: 18
Location: bradwell newcasle u lyme
|
| Posted: Sun Sep 02, 2007 8:38 Post subject: |
|
|
| cheers noiseboy72 answerd all me ? need new alt then hopefully i've saved the batteries. Thats my sunday sorted out. |
|
| Back to top |
|
|
Daddy Day Care
LifeTime Member
Age: 54
Zodiac:
Joined: 22 May 2005
Posts: 871
Location: Stoke On Trent
|
| Posted: Sun Sep 02, 2007 9:30 Post subject: |
|
|
If yours is still the original alternator it may be worth considering a rebuilt instead of a replacement unit.
It would seem from posts on here and elsewhere that the quality of aftermarket units tends to vary somewhat.
How quickly do you need it back up and running? I am sure that morex4 gets them reconned and he is at my house later today. I'll ask him when he gets here. If you can get yours over to Baddeley Green then it would save postage one way at least.
pm me your number if you want me to ask James about it.
Andy |
|
| Back to top |
|
|
jeffo
*
Age: 58
Zodiac:
Joined: 06 Aug 2007
Posts: 18
Location: bradwell newcasle u lyme
|
| Posted: Sun Sep 02, 2007 13:45 Post subject: |
|
|
hi andy,
cheers for that but i think i've solved the problem. 
whoever put the recon one on never put a bolt through the adjustable slide and the alt,so belt running loose.  doh!!
been down mcguinnes's got bolt all sorted.
cheers
mark. |
|
| Back to top |
|
|
Daddy Day Care
LifeTime Member
Age: 54
Zodiac:
Joined: 22 May 2005
Posts: 871
Location: Stoke On Trent
|
| Posted: Sun Sep 02, 2007 20:39 Post subject: |
|
|
Glad to hear it Mark.
Mines packed in now though  Pushing out 15.1 volts and frying batteries.
Andy |
|
| Back to top |
|
|
Dongskie2
Newbie
Age: 49
Zodiac: 
Joined: 05 Jun 2017
Posts: 5
Location: Mandaluyong City
|
| Posted: Fri Nov 17, 2017 17:12 Post subject: |
|
|
| noiseboy72 wrote: |
Hi there.
Basically, when the alternator diode pack starts to die, it dumps AC onto the electronics. This causes the oil, alternator and fuel filter light (Sometimes different circuits, it depends on the model) to dimly light up when the engine is at tick over. As you rev the engine, they go out.
The result is that the battery is also getting AC rather than DC and this will shorten its life. You need to change the diode pack in the alternator and to be honest, its worth swapping the whole thing for a reconditioned unit.
I hope this answers your question ? |
Good day!
Thanks for sharing this, I do have this symptom and is very seldom and would flash at no given driving pattern nor driving conditions.
Your description is very exact to what I am experiencing now, and to be honest I have taken down my alternator 3 times and I did not find anything physically wrong with it.
On my third strip down of the alternator (about 5 months ago) I made sure everything was fine and when rebuilt and installed the flashing was gone.
5 months later today the flashing came back.
I am assuming that the diode solder joints may be loose, could this be a possible culprit? Maybe because I disassembled everything and when I rebuilt it the solder moved and had a good contact until now. |
|
| Back to top |
|
|
|
FAQ
Watched Topics
Memberlist
Usergroups
Register
Profile
Log in to check your personal messages
Log in
POCUK FaceBook Group
Calendar
