1979 Mgb Roadster Wiring Diagram. I have a 1978 mgb roadster. These pdf files can print full size on 11 x 17 paper.
If the gauge does register the sender unit is bad. Whilst the mgb heating system wont be as effective as systems in new cars or even cars 10 years old i have found it perfectly adequate both for heat and air flow and i was using my v8 as a daily driver in all weathers for about 6 years including one spell of about 2 months when the temperature was well below freezing in the mornings and. 6264 mgb from bentley a8753aw 6467 mgb from bentley b51798 6768 mgb from bentley e1898w 6869 mgb from bentley e2333w.
A pink eraser or 600 grit sandpaper can be used to clean contacts and a smear of dialectric grease will help prevent future corrosion.
Another battle with the prince of darkness the fuse box and lights horn switching is one of the common failure points on the mg electrical system. 73 and 74 with male bullet for whiteblack signal wire and 12v spade green wire close by. Internals of this type as posted on the mg bbs by steve church. I am asking a question about fuse sizes eg.