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Headlamp Relay modification. A bust IMO 200

posted by daveshan on Mon Oct 4 09:25 CST 2010
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last visit: Sun Oct 19 07:03 CST 2014

[RELATED]

Tony a properly done relay system will result in increased voltage to the lights and a corresponding increase in light.

Here are some tests I did way back in '99 or so

http://volvo2.homestead.com/240lighting.html

My thought is possibly the loss is coming from the printed circuit board or the electronic relays.

If you connect the + lead from the relays to the terminal where the alternator joins the main wire to the starter you will get almost the full voltage the alt' puts out ~13.7 or so. Better yet attach it to the alternator.
--
Dave Shannon
Durango, CO
'67 1800s
'88-240
My Volvo Pages

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Headlamp Relay modification. A bust IMO [200]
posted by TONY H subscriber on Sun Oct 3 00:20 CST 2010 >

Headlamp Relay modification. A bust IMO [200]
posted by rhaire on Sun Oct 3 02:39 CST 2010 > V
- Headlamp Relay modification. A bust IMO [200]
  posted by scorron subscriber on Sun Oct 3 06:54 CST 2010 > V

Compare the voltage [200]
posted by Art Benstein subscriber on Sun Oct 3 09:13 CST 2010 > V
- Compare the voltage [200]
  posted by TONY H subscriber on Mon Oct 4 01:18 CST 2010 > V
  - Compare the voltage [200]
    posted by scorron subscriber on Mon Oct 4 03:07 CST 2010 > V
    - Compare the voltage [200]
      posted by TONY H subscriber on Mon Oct 4 04:07 CST 2010 > V
      - Compare the voltage [200]
        posted by ZJZ subscriber on Mon Oct 4 05:40 CST 2010 > V
        
        Restore the originals [200]
        posted by jerryc on Mon Oct 4 09:59 CST 2010 > V
        
        Restore the originals [200]
        posted by xmopar on Mon Oct 4 10:58 CST 2010 > V

Headlamp Relay modification. A bust IMO [200]
posted by JimN696 on Mon Oct 4 01:56 CST 2010 > V

Headlamp Relay modification. A bust IMO [200]
posted by David Samuels subscriber on Mon Oct 4 03:46 CST 2010 > V
- Headlamp Relay modification. A bust IMO [200]
  posted by TONY H subscriber on Mon Oct 4 04:28 CST 2010 > V
  - Headlamp Relay modification. A bust IMO [200]
    posted by David Samuels subscriber on Mon Oct 4 04:43 CST 2010 > V

Headlamp Relay modification - DON'T WASTE YOUR TIME [200]
posted by RicoS on Mon Oct 4 04:35 CST 2010 > V
- Headlamp Relay modification - DON'T WASTE YOUR TIME [200]
  posted by Art Benstein subscriber on Mon Oct 4 05:23 CST 2010 > V
- Headlamp Relay modification - DON'T WASTE YOUR TIME [200]
  posted by Ryan_R subscriber on Mon Oct 4 15:08 CST 2010 > V
- Headlamp Relay modification - DON'T WASTE YOUR TIME [200]
  posted by bulletproof subscriber on Wed Oct 6 12:29 CST 2010 > V
  - Headlamp Relay modification - DON'T WASTE YOUR TIME [200]
    posted by Art Benstein subscriber on Wed Oct 6 14:34 CST 2010 > V
    - Headlamp Relay modification - DON'T WASTE YOUR TIME [200]
      posted by bulletproof subscriber on Wed Oct 6 15:21 CST 2010 > V
      - Headlamp Relay modification - DON'T WASTE YOUR TIME [200]
        posted by Art Benstein subscriber on Thu Oct 7 01:44 CST 2010 > V
        
        Headlamp Relay modification - DON'T WASTE YOUR TIME [200]
        posted by bulletproof subscriber on Thu Oct 7 02:38 CST 2010 > V
        
        Headlamp Relay modification - DON'T WASTE YOUR TIME [200]
        posted by V945T on Fri Oct 8 17:00 CST 2010 > V
        
        Headlamp Relay modification - DON'T WASTE YOUR TIME [200]
        posted by bulletproof subscriber on Sat Oct 9 10:18 CST 2010 > V
        
        Headlamp Relay modification - DON'T WASTE YOUR TIME [200]
        posted by V945T on Sat Oct 9 10:27 CST 2010 > V

Headlamp Relay modification. A bust IMO [200]
posted by Ryan_R subscriber on Mon Oct 4 05:41 CST 2010 > V
- Headlamp Relay modification. A bust IMO [200]
  posted by TONY H subscriber on Mon Oct 4 05:55 CST 2010 > V
  - Headlamp Relay modification. A bust IMO [200]
    posted by Ryan_R subscriber on Mon Oct 4 06:12 CST 2010 > V
    - Headlamp Relay modification. A bust IMO [200]
      posted by TONY H subscriber on Mon Oct 4 06:26 CST 2010 > V
      - Headlamp Relay modification. A bust IMO [200]
        posted by daveshan subscriber on Mon Oct 4 09:25 CST 2010 > V

Euro Vs DOT [200]
posted by KlausC subscriber on Mon Oct 4 09:49 CST 2010 > V

In later (~1990-on) cars, there's another very good reason for relays .... [200]
posted by Ken C subscriber on Wed Oct 6 09:16 CST 2010 > V
- In later (~1990-on) cars, there's another very good reason for relays .... [200]
  posted by It Rolls on Wed Oct 6 14:46 CST 2010 > V
  - Well, there's more than just headlight relays .... [200]
    posted by Ken C subscriber on Wed Oct 6 15:11 CST 2010 > V
  - Here's a picture of the front .... [200]
    posted by Ken C subscriber on Thu Oct 7 10:17 CST 2010 > V
    - Here's a picture of the front .... [200]
      posted by It Rolls on Thu Oct 7 13:14 CST 2010 > V
      - Cost (time and $$$) .... [200]
        posted by Ken C subscriber on Thu Oct 7 17:11 CST 2010 > V
- In later (~1990-on) cars, there's another very good reason for relays .... [200]
  posted by TONY H subscriber on Thu Oct 7 01:26 CST 2010 > V

Headlamp Relay modification. A bust IMO [200]
posted by Oleseahorse subscriber on Fri Oct 8 14:39 CST 2010 > V

Headlamp Relay modification. A rambling post about my experiences with E-Code lighting on Volvos [200]
posted by V945T on Fri Oct 8 16:23 CST 2010 > V

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Headlamp Relay modification. A bust IMO 200