Hi!
New here... my background: learnt to drive in a 1275 GT and did simple maintenance on it as a teenager. My first car was a '68 mini - always regretted having to trade it, but it couldn't cope with the miles and I couldn't afford to run two cars...
Anyway now (much) older with a teenage son of my own and starting a rebuild of a 1974 Leyland Mini Clubman 1000 (Australian model). Not much history with the car but it's spent most of its life in WA so very little rust, bad respray, fairly recent engine rebuild and runs pretty smooth, interior very shonky (complete with wasps nest), dodgy electrics.
Stripping things down to find out how much more there is to do and found the PCB behind the instrument panel burnt out... easy enough to replace but the connector plug/wiring loom has me completely confused.
FYI this is a 2 instrument binnacle (speedo/tacho on the left, fuel & temp on the right):
This is the back of the unit showing the PCB and the fried section between the connector and voltage stabiliser:
Here is the connector, pins 1-6 and 7-12:
I cannot track down a wiring diagram that matches exactly what I am seeing. The closest I have come is a Clubman/Clubman GT diagram referenced in another thread here:
http://www.ausmini.com/forums/viewtopic.php?f=2&t=95223&hilit=wiring+diagram+1976
Here's what I have and my identification against the wiring diagrams I have found and the PCB/instrument panel itself:
Pin --- Wire colour ---- Function
1 ----- Green/white --- R turn indicator
2 ----- Green/black --- Fuel gauge
3 ----- Green/blue ---- Coolant temperature
4 ----- Blue/white ----- High beam indicator
5 ----- Black ------------ Ground
6 ----- Green/red ------ L turn indicator
7 ----- Not connected
8 ----- Green ----------- 12V (ignition on?)
9 ----- Green x 2 ------- Presumably also 12V?
10 ---- Brown/yellow -- Alternator warning
11 ---- White/brown --- Oil pressure
12 ---- Red/white ------ Panel lights
I'm happy that the pins/wires 1-6,10 and 11 match the wiring diagram and trace in the PCB to the correct lamps/gauges (although the white/brown oil pressure wire looks white/black to me).
Here are the inconsistencies:
-- Pin 12 is definitely the panel lights but the wiring diagram says it should be red/green not red/white.
-- Pin 7 is not connected to anything on the wiring loom, but on the PCB the circuit from this contact lights up the red light under the speedo (ignition warning light?)
-- Pin 9 has 2 greens but there is no contact on the PCB
-- The wiring diagram has pin 7 as the blue/white high beam wire and pin 4 not connected.
Can anyone shed any light on the inconsistencies or my misunderstandings, please? I don't want to fry the replacement PCB!
The fuel/temp binnacle has the alternator warning light (lower left), oil pressure (lower right) and high beam (top). Can anyone tell me what the red light below the speedo should indicate? As I said it is not connected to the wiring loom (at present). I'd guess it is the ignition warning light, but I suppose it might also be redundant on my model?
Thanks in advance!
Richard
