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Where is the voltage regulator located in your 87 300ZX or is it internal?
Wiki User
∙ 19y ago
Hello, I am afraid that the voltage regulator is INTERNAL. Which means that you will have to replace the alternator to fix your problem. This is an under the Z job and I think it is a 2.3hr labor rate at the shop. I can do them in about 30-45 minutes. Before you do replace the alternator please keep in mind 2 things. First, buy an alternator with a lifetime warranty!!!!! There have been a few bad batches of diodes within the alternator and a few of us had to replace the alternators every few weeks a time or two. Or you could purchase an OEM one but they are pretty expensive. Second, if you do not have a set of METRIC RATCHING WRENCHES, THEN PLEASE BUY THEM BEFORE STARING ON THIS PROJECT! There is not alot of room to work and sockets just don't cut it! Believe me, the right tool makes all of the difference! You will also need a 15mm or 17mm socket and a bungee cord. It is alot easier to swing down the sway bar but before you do lash it up with the bungee cord so you don't hit yourself on the head :) You will also have to remove the skidpads underneath and don't be heart broken when you will snap off the heads of a few 10/12mm bolts. This happens! You do not need to remove your alternator belt but clipping it out of the way helps. Also, YOU NEED TO COMPLETELY DISCONNECT YOUR BATTERY!!!!!!!! For more advice on your Z: www.z31.com Anna N. DesignQuest Auto Enhancing Tri-State Z Car Club IZCC #11540 Z31 #2524
Wiki User
∙ 19y ago
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