QUOTE(Jeff Bowlsby @ Mar 11 2018, 09:09 AM)
Is your harness in good enough condition to be worth doing that? Specifically, are the wires pliable and not brittle or cracked, do they have high resistance, and are the wire terminals corroded?
Usually the telltale indication of problems is that the exposed ground wires are brittle and the terminals are corroded.
Well if Jeff won't plug his harness rebuilding service Dennis, then I will -
Usually the engine bay harnesses are all crusty old highly resistant copper wiring which don't work well, due to the heat advancing aging of them.
Your 75 is now 43-44 years since built, & you probably have all sorts of "electrical gremlins" caused by crusty wiring.
If you just redo the sheathing, then you're only doing a cosmetic fix & will still have the gremlins, & will have wasted your time & money (I'm sure Jeff would advise what to use for sheathing if the wiring itself isn't bad).
Jeff sells fully restored "new wiring" & sheathing harnesses for the full engine bay set of harnesses, with a core exchange IIRC - see here:
http://bowlsby.net/914/WiringHarnesses/ > there are also a ton of wiring diagrams, etc. for 914er reference on there tooPM, email or call Jeff to figure out what you really need to do.
Make sure to visit his other 914 info website:
http://bowlsby.net/914/Classic/And another great 914 info site is p914.com (& .net & .info)
Good Luck!
Tom
///////