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Joined: Sep 2002
Posts: 388 Likes: 4
Backyard Mechanic
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OP
Backyard Mechanic
Joined: Sep 2002
Posts: 388 Likes: 4 |
I keep blowing out headlights on the passenger side, of my 1952 truck. This started all of a sudden. I can replace with a new bulb, and as soon as I pull the switch on, the headlight on the passenger side will cloud up, and go out. Anyone else had this problem. I don't see any naked wires, from the back of the headlight bucket, to the junction block. Thanks
Collector Of Fine Old G.M. COE Trucks & Antique Holmes Wreckers
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Joined: Jan 2006
Posts: 7,046 Likes: 107
Hall Monitor ChatMaster - 7,000
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Hall Monitor ChatMaster - 7,000
Joined: Jan 2006
Posts: 7,046 Likes: 107 |
Chinese made bulbs? I ran into that on my '38. I bought bulbs made in China and they would burn out almost immediately. I bought a lifetime supply of NOS bulbs on ebay.
VCCA Member 43216
Save a life, adopt a senior shelter pet.
1938 HB Business Coupe
1953 210 Sedan
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Joined: Sep 2002
Posts: 2,323 Likes: 6
ChatMaster - 2,000
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ChatMaster - 2,000
Joined: Sep 2002
Posts: 2,323 Likes: 6 |
I wonder if there is a wiring problem causing both elements to be powered up at the same time. You might be able to check for this with a volt meter and the bulb removed.
My 1951 1 Ton is now on the road! My 38 Master 4 Door is also now on the road .
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Joined: Nov 2001
Posts: 19,758 Likes: 64
ChatMaster - 15,000
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ChatMaster - 15,000
Joined: Nov 2001
Posts: 19,758 Likes: 64 |
Make sure that the headlight has a good clean ground. If there is a poor ground it is possible to draw more current through the bulb than it can survive.
How Sweet the roar of a Chevy four!
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Joined: Jul 2018
Posts: 217 Likes: 3
Backyard Mechanic
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Backyard Mechanic
Joined: Jul 2018
Posts: 217 Likes: 3 |
Spanky,
All of the above suggestions are good but the fact that you said the bulb clouds up before blowing means that the seal at the back is compromised. In a sealed beam bulb, when this happens the argon gas leaks out and is replaced by oxygen. This causes a swirling cloud and then the filaments burn away. I have been buying and selling bulbs (T3's mostly and no 6 volt) for many years and see this more in NOS bulbs than in used ones. NOS bulbs have never been lit whereas used ones have been used for many years and demonstrated that the seals are good. I also agree that if they are Chinese junk the likelyhood that they will fail is far greater than older American bulbs, NOS or used.
Hope this helps.
Jeff
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