Do you have a light unit for a pre focus type of bulb or for the later H4?
Could be the wrong bulb has been fitted which wont match the fresnel pattern on the glass or the parabolic reflector shape if the filament is in the wrong place.
Jonners
MOT Failed
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Jon Tilson
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Re: MOT Failed
Note from Admin: sadly Jon passed away in February 2018 but his humour and wealth of knowledge will be fondly remembered by all. RIP Jonners.
Re: MOT Failed
Good question Jon.
To be honest not sure, the bulb in it was a standard one and I replaced that with a new one and checked the bulb and holder were both locating properly, and the wiring was correct, it went to main beam and dipped ok.
How would I be able to tell? All I can say is that they are both Lucas have different numbers moulded into the lens and the lensing is slightly different. I haven't removed the "cut off" one but the bulb looks to be a standard one on that, golf ball shape rather than the halogen slim shape looking through the lens.
Bob
To be honest not sure, the bulb in it was a standard one and I replaced that with a new one and checked the bulb and holder were both locating properly, and the wiring was correct, it went to main beam and dipped ok.
How would I be able to tell? All I can say is that they are both Lucas have different numbers moulded into the lens and the lensing is slightly different. I haven't removed the "cut off" one but the bulb looks to be a standard one on that, golf ball shape rather than the halogen slim shape looking through the lens.
Bob
Re: MOT Failed
Every type of bulb has it's own type of fitting thus only the bulb that belongs to a certain lamp does fit properly. We all did see creative solutions sometimes as cut off tags etc but normally no other bulb does fit the lamp what's it designed for.
Jeroen
Jeroen
Classic Kabelboom Company. For all your wiring needs. http://www.classickabelboomcompany.com
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Carledo
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Re: MOT Failed
THe standard bulb for the square light is the golf ball one, the number is 410 (LLB 410 in Lucas) but if you ask for a 410 bulb in the factors you will get the right one, just make sure you fit it correctly, the locating tag is tiny!
There is also a Halogen conversion bulb available for the 410 fitting to give you the same 60/55w output as the later and more common 472 bulb (the one with the tripod fitting) I have them in the Carledo, but I can't remember the number offhand.
Steve
There is also a Halogen conversion bulb available for the 410 fitting to give you the same 60/55w output as the later and more common 472 bulb (the one with the tripod fitting) I have them in the Carledo, but I can't remember the number offhand.
Steve
'73 2 door Toledo with Vauxhall Carlton 2.0 8v engine (The Carledo)
'78 Sprint Auto with Vauxhall Omega 2.2 16v engine (The Dolomega)
'72 Triumph 1500FWD in Slate Grey, Now with RWD and Carledo powertrain!
Maverick Triumph, Servicing, Repairs, Electrical, Recomissioning, MOT prep, Trackerjack brake fitting service.
Apprentice served Triumph Specialist for 50 years. PM for more info or quotes.
'78 Sprint Auto with Vauxhall Omega 2.2 16v engine (The Dolomega)
'72 Triumph 1500FWD in Slate Grey, Now with RWD and Carledo powertrain!
Maverick Triumph, Servicing, Repairs, Electrical, Recomissioning, MOT prep, Trackerjack brake fitting service.
Apprentice served Triumph Specialist for 50 years. PM for more info or quotes.
Re: MOT Failed
definitely 410 bulbs and they are located correctly I tripled checked them and tried to put them in different ways but only went one way.
As soon as the headlight arrives I will swop it over. I think I have sorted out a Speedometer, its not available till Tuesday but its in a 1300 Dolly in a scrap yard in Doncaster, they also have a headlamp it turns out. In pics the car looks pretty sound. Its in Motor Hog Doncaster.
As soon as the headlight arrives I will swop it over. I think I have sorted out a Speedometer, its not available till Tuesday but its in a 1300 Dolly in a scrap yard in Doncaster, they also have a headlamp it turns out. In pics the car looks pretty sound. Its in Motor Hog Doncaster.