Re: Wire splicing
Way back when I was green and simple I pulled wires on Lears, Swearingens and Gulfstreams. We were taught to crimp, not solder (or soder) unless the solder joint is mechanically supported.
The reason given was the vibration effect on wires. At some point along the wire solder joints quickly transition from very stiff to very flexible and at can fail at this point if not supported. Crimp joints have a slightly more gradual transition from stiff to flexible.
Having said all this, I prefer to solder (and secure). It seems correct for the car I guess. Also there are some really dodgy automotive ratchet crimpers out there, and you don't always get the joint you think you're getting.
Back in the aviation days we would get the crimpers calibrated regularly for crimp force.
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