Thursday, April 11, 2013

Swapping out the heater and mystery wiring

TR7 dashboard area showing interior with heater out
TR7 dashboard area showing interior with heater out
This morning I got the heater out.  A quick call to Rick at S&S Preparations showed that I had missed a couple of fastening that go throu the bulkhead.  To be fair they were covered in a layer black stoneguard so were not easy to see.

Getting to the heater box has meant taking all the fascia out.  To get the fascia out had remove the lots of other stuff/trim: the a-post covers, the switch panel, the gear lever console, the steering wheel, the instrument panel, the drivers seat. As my car had various extra had to disconnect the radiator fan override, some of the radio wiring, disconnect the oil pressure gauge from the bottom of the fascia.

Hidden ignition switch and green radiator fan over-ride switch
Hidden ignition switch and green radiator fan over-ride switch
Whilst the car is in this state I will able to investigate the mystery extra wiring.  There is a hidden key/ignition switch which is wired into the ignition loom - trouble is I do not have the key - the switch was well hidden I only found it when I was in the footwell looking up.  The flick switch to the left of the steering is still a mystery - it is linked into the radio wiring - which is a really complex bunch of colored wires - think I will leave that alone as it works.  Intend to add a proper separate earth for the radio rather than continue to relay on it being lopped into the earth on the back of the rheostat.

oil pressure gauge and mystery switch no2
oil pressure gauge and mystery switch no2

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