Electrical Junction Box

By: Wayne Mandeville

It is a good idea to minimize the potential of the short circuiting with the reproduction box. It is easy to do and just takes a little time.

Use caution when replacing or installing the reproduction electrical junction boxes of the firewall of your Model A. The electrical posts in the reproduction boxes are installed by inserting two bolts through the back of the box. The electrical posts do not have a lot of clearance between their bolt heads and the firewall, and if they work loose the bolt heads can come in contact with the firewall and create a short circuit. This can blow a fuse, even cause a fire, and /or burn up wiring. The original boxes have the bolt heads of the post cast into the bakelite housing and they can not make contact with the firewall.

Remove the electrical bolt or post, and grind down the thickness of the head. This makes more space between the bolt head and the firewall after the bolt or post is re-installed in the box. Once this is done simply fill the hole where the bolt head is with some insulating material such as silicone adhesive. Presto, the reproduction box is now similar to the original boxes in the fact the electrical post is now fully insulated. Now install the reproduction box and it should function and work as good as an original.

Hope this helps and keeps you on the road with one less thing to worry about. Safe traveling and enjoy many trouble free miles.

Wayne