I`ve fitted my 200tdi into my 90 the 200 came out of an L reg disco and the 90 is a B reg the problem i have is the battery light stays on after engine is running.
On the back of the alternator is 3 pin's and a spade connector as you can see I`ve wired up the 2 thick brown wire's to the thicker pin and the thinner wire to the thinner pin as shown on internet searches other pin is for rev counter as far as i no
the spade connector i have no idea about also i have another wire that goes into the loom which ive no idea what is for