Posible powder coated dash ground problems on my 66 - Chevelle Tech
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post #1 of 3 (permalink) Old May 16th, 14, 12:09 PM Thread Starter
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Thomas
 
Join Date: Sep 2011
Location: Portage,Mi 49002
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Posible powder coated dash ground problems on my 66

I just had my dash powder coated on both sides and I just put it back in the car!I have the headlight switch/wipers witch/and ignition hooked up and half of my dash lights!So I decided to see if my dash lights work and they dont!Before I put it back in I figured it might be a problem so I took a small file and rubbed off the powder coat on the inside of the head light/wiper/and ignition switch holes!Just wondering if anyone has any info on what kind of ground I may need and where!Thanks.......Tom Also speedo cluster is not powder coated!

Last edited by Tommy Boy; May 16th, 14 at 12:10 PM. Reason: spelling
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post #2 of 3 (permalink) Old May 17th, 14, 8:36 PM
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Joe
 
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Re: Posible powder coated dash ground problems on my 66

Quote:
Originally Posted by Tommy Boy View Post
I just had my dash powder coated on both sides and I just put it back in the car!I have the headlight switch/wipers witch/and ignition hooked up and half of my dash lights!So I decided to see if my dash lights work and they dont!Before I put it back in I figured it might be a problem so I took a small file and rubbed off the powder coat on the inside of the head light/wiper/and ignition switch holes!Just wondering if anyone has any info on what kind of ground I may need and where!Thanks.......Tom Also speedo cluster is not powder coated!

Hi Tom,

There are two different issues here. The dash has to get a good ground from the car body and then each device that mounts to the dash must get that good ground from the dash itself. You are on the right path to grind away (I know, gasp! ) the powder coat around the mounting holes, but then you must do that for all other components ground connections.

For example, if a dash light socket gets mounted in the back of the dash housing, that socket must "see" a good ground. So the metal cluster MUST have a good ground from the housing. Anything directly mounted to the dash carrier must have a good ground, so the mounting holes, screw holes, etc. all have to "see" bare metal.

Although this isn't a '66, the same basics apply with ground connections clean, straps and ground wires in place:

https://www.chevelles.com/forums/showthread.php?t=616386

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post #3 of 3 (permalink) Old May 19th, 14, 9:25 AM Thread Starter
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Thomas
 
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Re: Posible powder coated dash ground problems on my 66

Everything is good now!I took it back out cleaned out the hole's where the speedo cluster screw's in with a dremel bit!Then I ground off powder coat around the inside and back of ignition,wiper,and headlight switch hole's!Also radio and all other hole's!The bottom of the dash where it bolts up I ground that down on the inside!The only thing I didnt do was where the screws go in at the top! All lights work and it's good to go!
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