NewZed Posted February 7, 2014 Share Posted February 7, 2014 (edited) You have a short somewhere. All you can do is check wires. Check the alternator B post for continuity to ground with a meter. You might have a bad alternator. Also make sure that you don't have other things connected to the B post. Like the black ground wire. Edited February 7, 2014 by NewZed Quote Link to comment Share on other sites More sharing options...
Zmanj87 Posted February 7, 2014 Author Share Posted February 7, 2014 FIgured it out!!!! I didn't have the black cap on right for the battery post on the Alt...So the Wire was touching the ALT too... Switched it around now no more sparks!! Quote Link to comment Share on other sites More sharing options...
NewZed Posted February 7, 2014 Share Posted February 7, 2014 Well done. Don't forget to check your fusible link for damage. Quote Link to comment Share on other sites More sharing options...
Zmanj87 Posted February 7, 2014 Author Share Posted February 7, 2014 Will do! if there damaged its the wires that melt right? Quote Link to comment Share on other sites More sharing options...
Zmanj87 Posted February 11, 2014 Author Share Posted February 11, 2014 So I just wanted to say thanks to NewZed and Aliasct for the replies and the help with this swap! So only issue I have now is that my dash lights and head lights flicker and the Volt Meter needle starts bouncing around... This happens when driving and the engine is Reving....now could this be from the fusible links? I read one post and sounds like it could be a ton of other things too... If it's the fusible links I would like to replace it with this one...has anyone had experience with this brand??. http://gadgetpro.stores.yahoo.net/st4dimafubl.html Quote Link to comment Share on other sites More sharing options...
9rider Posted February 11, 2014 Share Posted February 11, 2014 I am not quite sure but your Alt may not have internal regulator , correct me if I am wrong. I am going to swap the alt too but I will use 240sx 90AMP internal regulator. You can use a multimeter to test if your car current is in its range. Quote Link to comment Share on other sites More sharing options...
Zmanj87 Posted February 11, 2014 Author Share Posted February 11, 2014 Hmm I'm pretty sure it has an internal regulator its from a 83 280zx Turbo.. Had it tested at Advance and everything got the green light too.. Quote Link to comment Share on other sites More sharing options...
Zmanj87 Posted February 11, 2014 Author Share Posted February 11, 2014 Also curious if you do the 240sx swap is it same wiring setup as doing a 280zx? So if I went that route just plug and play? Quote Link to comment Share on other sites More sharing options...
9rider Posted February 11, 2014 Share Posted February 11, 2014 I just take a look at this old post and believe 83 ZX is external voltage regulator. Hence , they said no wiring mod for the swap for 83ZX . so I take it as you already slice your VR then you can just bolt the 240sx one in there ( need pulley mod) http://www.zcarcreations.com/howto/voltreg.htm Quote Link to comment Share on other sites More sharing options...
Zmanj87 Posted February 12, 2014 Author Share Posted February 12, 2014 (edited) So on the 240sx alt where does the L plug go in? Edited February 12, 2014 by Zmanj87 Quote Link to comment Share on other sites More sharing options...
9rider Posted February 12, 2014 Share Posted February 12, 2014 You need to cut and make a pig tail connection for the L wire. Here is the post from member in classiczcar:http://www.classiczcars.com/forums/electrical-s30/24161-240sx-alternator-swap.html Quote Link to comment Share on other sites More sharing options...
NewZed Posted February 12, 2014 Share Posted February 12, 2014 You guys are making things complicated. If Zman has the wires connected correctly, the ZX alternator should work fine. If they're not connected correctly, he'll just be connecting the 240SX alternator incorrectly also. They both work on the same principles, the wires are the same only the appearance has changed. If you want to see the plug-style for an alternator go to the auto parts sites online and pull some up. They have some good pictures. Some show the pin-out for the plug also. Switching alternators won't have any effect though unless the ZX alternator in there now is bad. And here's a helpful article from RockAuto.com - http://www.onlinetechhelp.com/installguides/Alt%20Inst%20Inst%20(1).pdf Almost every alternator listing has a little article attached. Quote Link to comment Share on other sites More sharing options...
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