Help on 8volt system and burnt indicator bulbs
paulrhd29nz
Member
in HUDSON
All, my new 51 C6CC came with an 8 volt electrical system. It has a modern converted single wire alternator that puts out the correct voltage for the 8 volt battery. My problem is that I can't keep the turn signal bulbs from blowing after a few uses.
There is no problem with brake lights,running lights,interior lights,radio, gauges, heater, headlights ( in fact the headlights are better than my 90 Dodge truck!) The 308 motor starts incredibly well hot or cold and it has a petronics ignition installed in it as well. Today I open up the voltage regulator for a look see and it looks like its only purpose now is a junction box.
The single wire from the 8V alternator goes the the Battery terminal side of the regulator. The "F" terminal is empty and there is one 10g wire coming from the "A" side of the regulator going in to the main wire loom that goes into the cab. ( I'm going to assume this goes to the Gen idiot light)
Do any of you and your infinite amount of wisdom and knowledge have any advise as to how I fix my indicator problem?
It should be noted that that I'm using the correct bulbs rated at 1154 (made in China )
There is no problem with brake lights,running lights,interior lights,radio, gauges, heater, headlights ( in fact the headlights are better than my 90 Dodge truck!) The 308 motor starts incredibly well hot or cold and it has a petronics ignition installed in it as well. Today I open up the voltage regulator for a look see and it looks like its only purpose now is a junction box.
The single wire from the 8V alternator goes the the Battery terminal side of the regulator. The "F" terminal is empty and there is one 10g wire coming from the "A" side of the regulator going in to the main wire loom that goes into the cab. ( I'm going to assume this goes to the Gen idiot light)
Do any of you and your infinite amount of wisdom and knowledge have any advise as to how I fix my indicator problem?
It should be noted that that I'm using the correct bulbs rated at 1154 (made in China )
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Comments
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I forgot to mention, yes I replaced the flasher.0
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I'm not an electrical specialist, but the 1154 bulb is rated 6.4 to 7 volts. Wouldn't 8 volts shorten the life?
Have all your other lamps and electrical components run for long periods of time without blowing out? If so, then possibly they are rated for at least 8 volts.
Anyway, that's my theory!0 -
Go back to 6 volts and use an Optima battery.0
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The initial voltage surge is usually what blows a bulb. This is amplified with the on/off repeat of the indicators. Murphy's Law - All improvements will have an inverse effect on reliability. You may be able to get 8 volt rated bulbs, but you are heading outside the parameters of reliability.0
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Would an (Led) light emitting diodes work?0
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If you're using an 8 volt battery, you better reset your voltage regulator as well. It is not rated for 8 volts only 6. In time it will burn up.0
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Lance I believe he is using an internally regulated alternator, so the external box is just for show?0
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Yeah you're right Dan. Eight volts is just trouble . Leave it 6 or go to 12 and do the whole system.0
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Ken , thank you very much. That’s the kinda solution I was looking for.0
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