Golden Jubilee
Posts: 741
Joined: Mon Sep 07, 2015 11:14 am
Truck Wiring Tips
Even an IHC rat rod should have a well done electrical system.
Thought I would offer some tips for a cleaner installation and also help prevent
costly fires.
What I notice:
The use of electrical tape improperly , using ty-wraps and cable cover normally
for home stereo equipment and velcro makes me cringe , heres why:
and I know that is why there are auto electric shops but with a little thought and some simple tips
you can make it look neat, with all due respect to those who know and want too know ,
allow me to offer some suggestions ,
By way of:
Using correct terminals sized to the wire gauge, proper wire terminations and routing
, grouping and lacing , wire numbers ect can add a neat touch.
Use of the proper crimps and the tool is a must!
✔ Not all electrical tapes is the same ! Quite to the contrary.
Top grade electrical plastic and friction tapes are the only way to go.
✔ Next ditch the ty-wraps IH has
per installed clips down low on the inter-bay fenders and fire wall..
Seen in the photos:
As the cable bundle comes out the firewall grommet the hole and sleeve the bundle with rubber
then apply tape tightly using your thumb to tightly lay the tape down. I use my wire snips to cut the tape
cleanly, as the last wraps will not stay tight if you pull and snap to break the tape off. Also you can
cut short pieces of tape to layer over sections to get good coverage.
The electrical tape will conform nicely when wrapped with this method.
Tight uniformed wraps are the trick..
Wiring should be routed as discreet as possible.
Some like to tin the connections , but not necessary
as in the case at the voltage regulator , that has slip fits made to land the correct size
fork terminals , these regulator terminal screws can accept ether lugged or un-luged
wire ends , but proper stripped lengths and fit gives the best look and connection.
I recommend to strip the wire to fit to the shoulder of the crimp sleeve or terminal for
the cleanest fit.
A proper wiring job should lay with what is known as soft loops. Once all is in place
it should be a harnessed fit.
OEM or after market wiring harnesses are fitted similarly on a bench then they just lay
right in place when you get them...
Crimp connections can work on the starter too , I simply prefer mechanical lugs.
1/0 wire from battery to starter.
✔ Notice the flat braided ground strap from the generator frame to the battery terminal.
As well here another braided strap from the engine block to the IHC ground point on the cab to insure
under dash ground connections for lights and sirens.
✔ These connections are critical to keep the trucks 6volt system in top order. any voltage