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Joined: Jun 2007
Posts: 110
4
Wrench Fetcher
Wrench Fetcher
4 Offline
Joined: Jun 2007
Posts: 110
ok guys on my 48 loadmaster i have a total of 3 amber roof lights only the center one is working , thinking its a ground problem all have new 6v bulbs in them, was advised to poss run a ground to another place any ideas or thoughts on where to ground it too???? would love to get these working thanks guys... ATTENTION SPANKY??


nothin like ol' Chevy iron..keep it goin

1948 Chevy Loadmaster Flatbed
Joined: Jul 2004
Posts: 5,708
A
'Bolter
'Bolter
A Offline
Joined: Jul 2004
Posts: 5,708
48loadmasterguy,

The rig at work with roof lights has a ground wire connected in series between all the lights, and travels down a pillar along with the power wire. This ground wire is then attached to a small machine screw on the dashboard. This would involve removing the headliner to access a mounting bolt (ground) on each light.

Stuart

Joined: Jun 2007
Posts: 110
4
Wrench Fetcher
Wrench Fetcher
4 Offline
Joined: Jun 2007
Posts: 110
ok stuart, , i remove the old headliner which i was going to replace anyway, ho do i run or loop the grounds to each roof light? then run it down to the dash??? correct?? and what gauge wife will i need to use for this 6 volt system, thanks


nothin like ol' Chevy iron..keep it goin

1948 Chevy Loadmaster Flatbed
Joined: Jul 2004
Posts: 5,708
A
'Bolter
'Bolter
A Offline
Joined: Jul 2004
Posts: 5,708
48loadmasterguy,

Are the lights attached to the roof with screws, nuts and gaskets. I would make sure at least one screw per light was bonded clean and tight with the light assembly and the sheet metal. I would do just as you said and run the ground from one to the other..to the other...to the other, then continue the wire down to anywhere you can access it, and attach it to a good clean ground.

16 or 18 gauge wire would be more than adequate for this task.

Have you scratched around inside the non-working lights to see if you can get them working before you go through all this work. In a perfect world, the fixture should be grounded to the cab through its mounting screws or bolts. Maybe they are oxidized or cruddy and just need some TLC.

Stuart

Joined: Oct 2006
Posts: 843
B
Shop Shark
Shop Shark
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Joined: Oct 2006
Posts: 843
Have you tested the other lightbulbs in the working lamp?

Joined: Jun 2007
Posts: 110
4
Wrench Fetcher
Wrench Fetcher
4 Offline
Joined: Jun 2007
Posts: 110
yes all the "new" bulbs work in the only 1 working cab light socket, ill be replacing the old orig headlinner anyway so ill run new ground wires and hope this will work


nothin like ol' Chevy iron..keep it goin

1948 Chevy Loadmaster Flatbed
Joined: Jun 2004
Posts: 8,597
W
Riding in the Passing Lane
Riding in the Passing Lane
W Offline
Joined: Jun 2004
Posts: 8,597
If the roof is steel you shouldn,t need ground wires. Clean the screws holding the lights on & put lock washers under the heads. Check the wires going to the sockets. Check for the sockets grounding to the base of the light.


They say money can't buy happiness. It can buy old Chevy trucks though. Same thing.
1972 Chevy c10 Cheyenne Super
In the Gallery Forum
Joined: Jun 2007
Posts: 110
4
Wrench Fetcher
Wrench Fetcher
4 Offline
Joined: Jun 2007
Posts: 110
awsome wrenchbender, thanks ill try that


nothin like ol' Chevy iron..keep it goin

1948 Chevy Loadmaster Flatbed
Joined: Jun 2004
Posts: 8,597
W
Riding in the Passing Lane
Riding in the Passing Lane
W Offline
Joined: Jun 2004
Posts: 8,597
Hey! 48Guy. Did you look at my 70 stepside & notice the roof lights.


They say money can't buy happiness. It can buy old Chevy trucks though. Same thing.
1972 Chevy c10 Cheyenne Super
In the Gallery Forum

Moderated by  Jon G, Rusty Rod 

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