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Need help..Herald wiring! Print
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Moss Car Man
May 12, 2017, 7:24pm Report to Moderator

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Hi,
I hope you folks can help me out...
I've made a new dash whilst getting my Herald 13/60 based Moss up & running, the car had loads of wiring "issues"!  

I have main beam (inc. flash) switch using "purple-fuse-brown" live wire from solenoid & original blue/white to headlights (switch relay used).
Side lights switch using original brown/red as live & original wiring to sidelights (switch relay used).
Dip beam also using original brown/red as live, & new wiring to headlights (switch relay used).

Each headlight has new, separate earth points.

Main beam warning light on dash wired from output side of main beam switch to a good earth.
BUT...
For some reason I simply can not fathom, the main beam warning light also comes on when I switch the dip beam on...even though the two are not connected!

HELP!


www.thesundogs.uk

Rockin' rollin' rhythm & roots!
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Richard B
May 12, 2017, 8:36pm Report to Moderator

Richard Brake
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Wire it to the input side of the full beam. As per OE installation.

The dip light is probably running it through the common earth of the light unit.


Surrey AO and Triumph Hoover, Location: Guildford - Surrey,
Spitfire 2.5PI - 1967 having surgery, PI Saloon - 1969 RBRR x 3, PI Estate - 1969 (to restore), Stag - 1971 RBRR x 2,
PI Saloon MkII - 1971(stalled project), Sold some cars!  

Daughters own: Herald 1500 1961, Herald 1500 Coupe 1962, Dolomite 1300 1976, Herald 13/60 Estate 1970
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Moss Car Man
May 14, 2017, 6:40pm Report to Moderator

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Hi Richard,
Will that not just mean that the main beam dash light will be permanently on?
Perhaps I am missing something here?!
Andy


www.thesundogs.uk

Rockin' rollin' rhythm & roots!
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RobPearce
May 15, 2017, 11:21am Report to Moderator

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I'm having trouble following your description. Can you draw a wiring diagram of what you've done?


Current fleet
1967 Vitesse 2L conv "Tessa"
1970 Spitfire Mk3 (project) "Toby"
1972 GT6 Mk3
Not enough time or space
Recently sold:
1972 2.5 PI estate "Harry" (gone to russell on here)
1973 Toledo 2-door "Spike" (gone to a club official)
Used to have:
1968 Vitesse 2L saloon
1980 Dolomite 1500
1977 Dolomite 1850
1980 Dolomite Sprint
1982 TR7 DHC Sprint
1975 2500S saloon
1971 Herald 13/60 Estate (with 1500 Spit engine)
1975 Stag
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Moss Car Man
May 15, 2017, 5:04pm Report to Moderator

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Quoted from RobPearce
I'm having trouble following your description. Can you draw a wiring diagram of what you've done?


Ha ha! I'm not surprised Rob, I can't follow what I'm doing most of the time either!  

I'll try my best to draw & post a digram in the next couple of days.

Thanks,
Andy.


www.thesundogs.uk

Rockin' rollin' rhythm & roots!
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Matt306
May 18, 2017, 7:43pm Report to Moderator

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Earth issues i would think?


Worcestershire Area Organiser search Facebook for Club Triumph Worcester
Triumph 13/60 1970 Convertible  first car restoration, many botches much learnt... Now back MOTd and Taxed... 2016 RBRR COMPLETE
1974 Spitfire Mk IV in Yellow and Rust... for restoration
Triumph 1000cc 1991 Daytona got to go to pay for Yellow Peril
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Moss Car Man
May 18, 2017, 9:00pm Report to Moderator

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Ok folks....here it is....my (very poorly done) plan of the wiring I have done - no laughing please!  

All switches are dashboard mounted toggle switches, I have removed the column switch & the new main beam switch is a "flash/off/on".



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www.thesundogs.uk

Rockin' rollin' rhythm & roots!
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RobPearce
May 22, 2017, 8:23am Report to Moderator

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Tempted to agree with Matt.

A couple of points come to mind:
  -  I don't see any mechanism to prevent both dip and main being on together
  -  Why is there a relay on the dip but not on the main?
  -  the main beam switch is drawn with dash light on one side and the blue/white on the other. Are these separate terminals?

Pay particular attention to the first of those points. I once had a Dolomite Sprint which some PO had re-wired to allow dip and main to be on together. The result was that the SHARED earth wire melted and burned out INSIDE THE BULB. This, in itself, would explain your symptoms.


Current fleet
1967 Vitesse 2L conv "Tessa"
1970 Spitfire Mk3 (project) "Toby"
1972 GT6 Mk3
Not enough time or space
Recently sold:
1972 2.5 PI estate "Harry" (gone to russell on here)
1973 Toledo 2-door "Spike" (gone to a club official)
Used to have:
1968 Vitesse 2L saloon
1980 Dolomite 1500
1977 Dolomite 1850
1980 Dolomite Sprint
1982 TR7 DHC Sprint
1975 2500S saloon
1971 Herald 13/60 Estate (with 1500 Spit engine)
1975 Stag
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Moss Car Man
May 22, 2017, 6:02pm Report to Moderator

Posts: 47
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Hi gents,
Thanks for the input..ref Rob's points:
Dip beam does indeed now stay on when main beam is switched on...I did not realise this would be a problem!  
No relay on main beam as there was a fuse in the OE wiring (& I am a numpty!)
The blue/white jumps across the two terminals of the main beam "flash/off/on" toggle switch.

When I looked at the original column switch I couldn't see that the dip necessarily went off when main beam was switched on. My error obviously, I wonder if there is a dashboard switch that would do the job?
Andy.


www.thesundogs.uk

Rockin' rollin' rhythm & roots!
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Moss Car Man
May 24, 2017, 8:57pm Report to Moderator

Posts: 47
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Hmm, interesting find in the MOT manual...chapter 1.7 Headlamps, Method Of Inspection part 4C..."on vehicles first used on or after 1 April 1986, the "tell-tale" illuminates when main beam is selected"...having a 1969 plate then my easiest option is to ditch the dash main beam tell-tale light!   I will rewire the switches so the dip goes off when the main beam is switched on to save possible overload.
Cheers.  


www.thesundogs.uk

Rockin' rollin' rhythm & roots!
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