How do you put in putting the adjusting bolt in the alternator of a 1986 Nissan when the alternator is too high with both bottom bolts secure.?

I am not sure what you are talking about. the bolts that hold the alternater to the front cover are a real pain to install the lower one is almost impossible. I put mine on yesterday and it was very hard to turn a 10 mm openended wrench I could not see the bolt and could only turn it about a 1/8 turn at a time flipping the wrench over between turns. If the distributer adjusting bolts won't go down all the way you might not have it aligned with the oil pump. I hope this helps Mark I just installed one yesterday. Leave the two mounting bolts threaded but loose. Lift up and pull back on the alternator and thread the adjusting bolt. Use a socket wrench to tighten. If you're refering to the piece of metal that connects to the top of the alternator and the engine you can adjust it by loosening the bolt attached to the engine to adjust it's position.