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That doesn’t look normal. There are 3 main bulbs that illuminate the front face of the instrument cluster. I think the two side ones are burned out in your case. Having said that your brightness from the center bulb seems quite good. My cluster was very dim with all 3 bulbs.
It does look like your center bulb is doing most of the work, although there's some light on the outside two so I'm not sure they're burned out. Might just be that more of the silvering has flaked off the outside two light tunnels....
As Jey Jey mentioned... could be flaking reflective material. I redid mine by cleaning away the old stuff with acetone and using Rustoleum "Metallic Finish."
If you are going for bright... replacement LEDs are the way to go. Note that A) some of them are square-shaped and don't fit through the round holes in the cluster and B) they don't all dim very well. I stuck with incandescents when I redid mine... because I like my dash pretty dim at night.
So, removed the cluster. Upon inspection, bulbs were all (externally) foggy/dusty but functional. So I just cleaned them and popped back in. They’re very shiny, so we’ll see when I power back up.
I also took your advice and repainted the silver pockets as some of the prior reflective material did flake off. Not much, but fuel gauge pocket was the worst.
Lastly…. And here’s where I need your help now… I’d like to change the Speedo faceplate. Same as before, just cleaner. Mine has a ring of shiny, tacky material that I cannot remove.
I’ve searched the interweb with no luck. Anyone know where I can get a replacement 160 MPH one of these?
Thank you! I was looking for something like this for hours. But wow, pricey!!!! ~$200 to re-create just the speedo disc!!! But thanks. This may come in handy one day.
there are also other options if you wish.. https://moman.pl/en/
im happy with those. i always hated outdated factory dim crap
Is that picture of yours from MoMan? Yours look backlit or reflective. I'm not into that. I have a full cluster set in my cart for ~$150 delivered from Poland and I'm about to hit the button. Let me know. Thanks!!!