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Dashboard lights

Discussion in 'Boxers/TR/M' started by C1C7M, Sep 23, 2018.

  1. turbo-joe

    turbo-joe F1 Rookie
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    Apr 6, 2008
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    romano schwabel
    I once had the same problem after renewing the gas springs but still don´t know why?
    so I disconnected and no problem anymore
     
  2. ozziindaus

    ozziindaus F1 Veteran
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    Just so I’m not the only one that gets this song stuck in their head every time I see the title......

     
  3. C1C7M

    C1C7M Rookie
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    Jun 11, 2018
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    Chris
    UPDATE: Checked fuse #13 and it was blown again. This time I disconnected the yellow wire on the passenger rear gas spring as Steve advised before putting in a fresh fuse, and the dash lights are back on. Since the heat shrink tubing didn’t stay on after a couple of drives (half of it shriveled and fell off), I will attempt to adjust the end mount of the passenger rear gas spring with a mallet. Hopefully that will prove to be a more durable and less conspicuous fix.
     
  4. Melvok

    Melvok F1 World Champ
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    Let us know … of course :)
     
  5. C1C7M

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    Well, this issue just took an interesting turn…

    First of all, unplugging the yellow wire continues to work as a fix for the dash lights. The lights have worked consistently ever since, with lots of testing being performed.

    Secondly, the car was recently sent to a local, reputable shop for some minor work when the technician advised that the fuse box is a mess and in need of rebuilding. This came as a surprise because, as mentioned, this car has the Dave Helms fuse box. From what I’ve read about the DH fuse box, the reviews have been very positive. My understanding is that it’s the one to get to remedy all kinds of electrical gremlins common in these cars. That said, what I’m not clear on is whether the technician is not a fan of the DH design per se, or whether this particular installation of it was botched somehow.

    And so, my question is, has anyone else experienced issues with their DH fuse box? Before I authorize what will be a time and money consuming repair, it would be helpful to get some useful, firsthand information from others.

    Finally, I will note that the dash lights haven’t been the only electrical problems in this car. Various other lights – such as a headlight, a red emergency door light, and both rear hood lights – either work intermittently or not at all (the latter of which didn’t work before unplugging the yellow wire). This fact makes me wonder if the technician is on to something. Thanks in advance.
     
  6. flash32

    flash32 Formula Junior

    Aug 22, 2008
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    Can he explain what a "mess means" example

    I trust he can do better than that explanation

    Sent from my moto x4 using Tapatalk
     
  7. xplodee

    xplodee Karting

    Jan 3, 2017
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    Tim
    Would love to see pictures or a description of what "a mess" is. I've held off of any fuse box re-build type of kit as I am not necessarily sold on anyone's design just yet. A lot of assumptions of what's bad and how to fix it are being made imo.
     
  8. Steve Magnusson

    Steve Magnusson F1 World Champ
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    There is a fair bit of cutting/splicing to install the Dave Helms modification so it could be done well or poorly, but the problems you report with the various light functions wouldn't be part of the DH modification. Here's a shot of a DH modification after installation:
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    Do you have the added six fuse holder as seen on the left side of this picture? Also, other things might have been modified like in this DH modified TR:

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    The added connection on the w connector on the right side of this photo (I believe) isn't part of the DH modification so wouldn't be unusual to have some other modifications present.
     
  9. C1C7M

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    The car is still at the shop, but I found one pic of the fuse box taken weeks ago. It looks to have the fuse holder. Can you tell anything else from it?
     

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  10. Steve Magnusson

    Steve Magnusson F1 World Champ
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    #35 Steve Magnusson, Oct 11, 2018
    Last edited: Oct 11, 2018
    No, not really. The shrink tubing splices with the wrap around labels are part of the DH modification. That actually looks pretty decent/tidy. This is what something about "C" looks like IMO:
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    And I'd have to go "C-" on this one (due to the "Scotch-Loks"):
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    (I can't seem to find the really scary "F" one I thought that I had saved.)
     
  11. JIMBO

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    I've had the Dave Helms modified fuse box in place on my 512TR for 10+ years and over 35000 miles with NO electrical problems. The modification only takes the high current circuits out of the circuit board and onto external relays. The fuses still work as usual, and the lighting problem you describe would be completely separate from Dave's work.
     
  12. C1C7M

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    Thanks for the comments and pics. It’s sounding like the DH mods are not the problem but rather that the original board itself may need refreshing. I pick the car up tomorrow and hope to get more clarity then.
     

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