Need help badly with 1g to 3g in 84svo 5.0 Reply #15 – April 27, 2008, 03:29:18 PM Do you have 3 post or 4 post solenoid? Quote Selected
Need help badly with 1g to 3g in 84svo 5.0 Reply #16 – April 27, 2008, 09:26:42 PM FIRST it is IMPORTANT that the alternator output goes to same place the positive cable from the battery goes.Do this before anything else!!The original 1g wireing is screwed up or no longer exists Plan B: You said the blue wire on the "I" terminal of the external reg went to the blower fuse (fuse #9). This should be hot with the ignition in run. Check it with with your meter to be sure.If it checks good hook it to the "I" of the 3G.The alternator should now work. Next step is to make it a safer set-up.Splice the blue wire into the blower fuse circuit to get rid of the stuffed in along side of the fuse thing.Now go to the link that jcassity put in post #5 of this thread.Go to post #49 in that thread and find the "3.8/5.0 after" diagram.Get the stuff you need to wire it up like this diagram.You will have your blue wire on the "I" instead of the green shown in the diagram. Quote Selected
Need help badly with 1g to 3g in 84svo 5.0 Reply #17 – April 27, 2008, 10:46:32 PM ive been watching this thread softtouch,, I just dont seem to have as much time anymore to partite at the level of detail i usually enjoy.Your saying that the blue wire will substitute in where the green would have been.Does his existing engine by wiring qualify as a DS1 , DSII or DSIII ?I would like to see if this is another breed of wiring we need to include into the diagrams. Quote Selected
Need help badly with 1g to 3g in 84svo 5.0 Reply #18 – April 27, 2008, 11:45:39 PM Quote from: jcassity;216064ive been watching this thread softtouch,, I just dont seem to have as much time anymore to partite at the level of detail i usually enjoy.Your saying that the blue wire will substitute in where the green would have been.Does his existing engine by wiring qualify as a DS1 , DSII or DSIII ?I would like to see if this is another breed of wiring we need to include into the diagrams.It was a 2.3 L EEC IV Mustang with an ammeter. It had a 5.0 put in it and somehow the voltage reg. wireing has gotten screwed up. I don't think he did the work himself.He doesn't have a green wire to put on the reg because that wire is only on cars without an ammeter. The orginal "hot in run" through the ammeter isn't working, so it is easier use a different source for "hot in run", the blue wire, than to try to figure out what's wrong with the ammeter circuit.I think this is a unique situation. Quote Selected
Need help badly with 1g to 3g in 84svo 5.0 Reply #19 – April 28, 2008, 12:19:47 AM darn it,,another dead end road with a potential 2.3L 3g conversion.I sure as heck would like another opportunity on a 2.3L 3g project.The last attempt resulted in a fire with little details of the cause from what we all concluded. Quote Selected
Need help badly with 1g to 3g in 84svo 5.0 Reply #20 – April 28, 2008, 05:52:31 PM SUCCESSI switched the cable over to the right post on solenoid and also hooked up the light blue wire that was coming out of my blower motor slot in the fuse box to the I post on the alternator and now im sitting at 13.6 at idle and 14.4 or so when revd a bitmaybe you should add a special diagram of how to jimmy rig an alternator like this as a last resortId like to thank you all for your help I really appreciate it all, I couldnt get useful information like this on stangnet Quote Selected
Need help badly with 1g to 3g in 84svo 5.0 Reply #21 – April 29, 2008, 12:44:58 AM Just for kicks, can you post a pic or two of what you did? Quote Selected
Need help badly with 1g to 3g in 84svo 5.0 Reply #22 – April 29, 2008, 09:35:47 AM and you have a functional amp meter? Quote Selected
Need help badly with 1g to 3g in 84svo 5.0 Reply #23 – April 30, 2008, 03:35:36 AM nah i bypassed the amp meter, is there a way to hook it up easily? its still sitting at halfway even with vehicle offIll try n get some pics soon have to use a buddys camera Quote Selected
Need help badly with 1g to 3g in 84svo 5.0 Reply #24 – April 30, 2008, 09:31:18 AM softtouchdo you want me to update the 3g drawing or would you do it?I just used Thunderchicken's original one from a few years ago and opened it with paint , added notes and stuff. Quote Selected
Need help badly with 1g to 3g in 84svo 5.0 Reply #25 – April 30, 2008, 01:21:35 PM Quote from: jcassity;216458softtouchdo you want me to update the 3g drawing or would you do it?I just used Thunderchicken's original one from a few years ago and opened it with paint , added notes and stuff.I don't know what kind of an update you want. His original stock wiring was screwed up to begin with. Quote Selected
Need help badly with 1g to 3g in 84svo 5.0 Reply #26 – April 30, 2008, 01:55:37 PM Here is what the original wiring should have been. The ignition swt. circuit to the "S" of the reg. was not working. Quote Selected
Need help badly with 1g to 3g in 84svo 5.0 Reply #27 – April 30, 2008, 02:07:59 PM Quote from: softtouch;216081He doesn't have a green wire to put on the reg because that wire is only on cars without an ammeter./QUOTE]This is not true. I don't know why I said that. The green wire in his case is not working. Quote Selected
Need help badly with 1g to 3g in 84svo 5.0 Reply #28 – April 30, 2008, 04:35:45 PM Quote from: softtouch;216509Quote from: softtouch;216081He doesn't have a green wire to put on the reg because that wire is only on cars without an ammeter./QUOTE]This is not true. I don't know why I said that. The green wire in his case is not working.i was curious about that but I didnt second guess it for the fact that you figured out all the other 2.3 stuff while i watched.We need a 2.3 version of the diagram that the end result is a working Ammeter. we do have a 2.3 version but no one has piped up yet with a 3g upgrade and a working Ammeter. Quote Selected
Need help badly with 1g to 3g in 84svo 5.0 Reply #29 – April 30, 2008, 06:39:29 PM Quote from: jcassity;216541We need a 2.3 version of the diagram that the end result is a working Ammeter. we do have a 2.3 version but no one has piped up yet with a 3g upgrade and a working Ammeter. If you use the existing wiring you can have 3G with a working ammeter.It is when you increase the wire gauge to take advantage of the higher current available from the 3G that it gets sticky.And unless I am missing something you only would be using more current if you have some non-stock extra electrical load.For the meter to be meaningful, the output of the alternator has to go through the meter circuit. Not directly to the + battery terminal on the starter relay.The ammeter and the meter shunt are a matched pair. They are a parallel circuit with the shunt being a very low resistance and the meter movement a high resistance.Say for instance with 20 amps flowing, 19.8 amps are going through the shunt and .2 amps through the meter. The meter reads 20 amps.Now say you double the gauge of the shunt (halve the resistance?)Now with 20 amps flowing, 19.9 amps are going through the shunt and .1 amps through the meter. The meter reads 10 amps.How do you recalibrate the meter?Anyhoo its a lot easier to forget about the meter. Quote Selected
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