Red=Positive ???

[Jim34RL]

Originally Posted by pgandw

Ground is the same as negative in 12V systems. Only exception I know of is electrics by Lucas aka Prince of Darkness. Early MGs used Lucas and had positive grounds.

That is because this was built in the UK and they drive on the wrong side of the road!

I had a friend who had a TR3 built in the fifties that needed to be re-wired. He bought this from someone who had stored the car in a barn and the rodents destroyed the wiring. This took us along time to get it correctly wired because he insisted on a negative ground like his dads American made car. I spent hours at the local library reading up on wiring British built autos in the fifties to get it right.

[Amarillohwy]

I also did the same thing this winter, when I went to hook up the battery to run the electric jack. After hooking up, I noticed the electric brakes engaged after smoking the brakes for 3 blocks , I disconnected the battery and the brakes released. What's the problem there?

[SilhouettePenny]

Originally Posted by Amarillohwy

I also did the same thing this winter, when I went to hook up the battery to run the electric jack. After hooking up, I noticed the electric brakes engaged after smoking the brakes for 3 blocks , I disconnected the battery and the brakes released. What's the problem there?

Check your emergency brake cable, it probably got pulled out of the socket far enough to activate the break-away mechanism. Pull it out, inspect and replace. This should help release your locked up brakes.