Hope everyone is having a great holiday break and enjoying the season!
As I am home this week I'm finishing up some of my last electrical connections to the 912s. The wiring hasn't been too bad, just tedious as most know.
I am using a Grand Rapids 4000 EIS and would like to tap into those who are familiar with the CHT connections.( I called GR, but they are enjoying the week off as well.) The EGT connections are straight forward because each bayonet probe (that goes into an exhaust pipe) has two wires to plug into. There are 2 CHT probes provided on the 912s at cylinders 2 and 3. My question develops due to having two CHT wires (per cylinder head) to be connected with only one fast-on connection provided at the engine.
So the question is...How is the connection made? The GR manual was very specific indicating that the two (dis-similar metal) wires be used to properly allow the thermocouple to send correct info...
My common sence (sometimes not so common) tells me one of the wires goes to ground...but I don't want to guess at this.
Any help would be appreciated.