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Cab ground connections
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garym999
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Joined: November 26, 2022
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Location: Oxfordshire, UK
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PostPosted: Mon Nov 06, 2023 11:02 am    Post subject: Cab ground connections Reply with quote

Just a quicky I hope,

Where are all off the ground connections made off in the cab? I did have one self tapper with loads of ring terminals stacked up. As soon as it was undone they just scattered everywhere. For now I have mouned a large commoning block with each of the rings on its own screw. Then block is then bolted to the same metal work as the the fuse holder.

Wiring is a bit of a mess. Pulled the fuse box to solder/clean up and a lot of the wires are tight. But better now and should get me through winter running without the lights going out.

Considering chagnging out the stock fuse holder for a blade type with more ways, better current capacity, space for better sub circuit protection and additional accessories
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Clara Premium Member
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PostPosted: Mon Nov 06, 2023 2:32 pm    Post subject: Re: Cab ground connections Reply with quote

What year bus? I'm thinking a bunch of loop grounds under the dash sounds not stock, maybe that was added?

wire diagrams here:
https://www.thesamba.com/vw/archives/info/wiringt2.php


This is a US spec 58:

Image may have been reduced in size. Click image to view fullscreen.

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busdaddy
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PostPosted: Mon Nov 06, 2023 2:56 pm    Post subject: Re: Cab ground connections Reply with quote

I can't think of any split bus with lots of ground wires, almost everything grounds to the body right where it's installed. Bay buses have a bunch of ground wires that all go to the back of the speedo and then one wire goes from there to a welded tab on the body by the wiper motor, maybe the 1975 SA bus is similar?
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garym999
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PostPosted: Mon Nov 06, 2023 3:04 pm    Post subject: Re: Cab ground connections Reply with quote

Itís the last year of the Split, a 75 South African Fleetline.

Quite a few of the rings look like original brass ring crimps but no obvious place they were fixed too.

The lip under the shelf is where they were all screwed too. But there are that many mis drilled holes etc. from trim panel fixings and the like itís hard to tell. Either way pretty sure they werenít fixed by a single stacked self tapper or chocolate block as in the pic
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garym999
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PostPosted: Mon Nov 06, 2023 3:21 pm    Post subject: Re: Cab ground connections Reply with quote

Iíve not had a good dig around. Itís something I had planned for the warmer weather and longer days this year but blown that.

So it was a quick dabble this weekend to prevent heat build up in the fuse box and headlight switch now the headlights are getting used more often.

Looking at other pictures there are a lot of slack wires and some very tight like a lot of buses. Nothing more unnerving than reaching for something that has slid around the shelf near the speedo only to fish it out with a loose or fallen off wire/bare crimp.

After soldering up the headlight switch I find that the wires have been routed wrong and the main feed wire has been replaced with something lighter than stock.
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