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Head Lights Keep Blowing

TJay

By TJay,
in General Maintenance

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t_revz Grand Master

t_revz

Posted
Posted

put a multimeter across the alternator and give it a rev. 13.8-14.4 is perfect. a little either way is ok but 14.8 should be max. if voltage is slightly too high compare to voltage as battery at same rpm. if its significantly lower than its high volt drop in cables between battery and alternator.

TJay Apprentice

TJay

Posted
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Posted

ripping my car apart atm and the charge is around 14 droping btween 13.8 n 14.1 but i have just ripped out my radiator over flow bottle and have found mass amounts of water in where the loom plugs into each other so im gona seal that up but im gona try get the head light out

so my next question 2 evry1 is how 2 remove the whole head light????

do i have 2 remove my fender or will i have to remove my front bar????

t_revz Grand Master

t_revz

Posted
Posted

sorry mate got a virus or something and wouldnt let me pm back. 14.5 is ok. you dont need to stress too much about earths on light harnesses. bad earth will lower voltage to light therefore blow less often. but its impotant on engines etc for good starting/charging and keeping gremlins at bay. with all that said it sounds like you have correct voltage so is there anything else like you have a killer stereo that makes the lights flash and cause them to wear out faster. could be overcharging on occasion but usually once they overcharge they dont often go back the other way.

the stock wiring hasnt been modified either. if there is a relay fitted to light circuit to run something else there is a small possibility when the relay turns off it created a spike in the voltage momentarily. this would only happen if the the light circuit is powering the relay. IE running a relay off high beam wiring to power up spot lights. if there is some sort of crazy mod its as simple as using a diode protected relay which is easy. all i can think of this time of night and after a few bourbons. will get back to ya if i think of more. happy hunting

fruitymash Contributor

fruitymash

Posted
Posted

check if there are any wires from the globe are earthing out on to a metal surface, im guessing the headlights are not split soo they share the same fuse? might be a break in the loom somwhere maybe?

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