Can a 3g be damaging overkill?

Topic: Can a 3g be damaging overkill? (Read 15202 times) previous topic - next topic

Can a 3g be damaging overkill?

Reply #30 – September 24, 2007, 08:49:28 PM

Because I think (but not 100% sure) 88 TC's didn't have 2G alternators. I think (again, not sure) they had a different alternator - Nippondenso, Bosch, or something like that. That's why I qualified my post with "Don't know about TC's, but in 5.0 cars..."

Can a 3g be damaging overkill?

Reply #31 – September 24, 2007, 11:02:21 PM

Ha! I see. Maybe that's why I'm having problems understanding exactly what to do with the 88. Anyone wanna chime in?

Can a 3g be damaging overkill?

Reply #32 – September 24, 2007, 11:06:19 PM

If someone with an 88 EVTM could post the 2.3 charging circuit, it may be helpful.

Can a 3g be damaging overkill?

Reply #33 – September 24, 2007, 11:34:44 PM

Can a 3g be damaging overkill?

Reply #34 – September 24, 2007, 11:43:39 PM

Is that from jcassidy's 87 EVTM? If it is I have that. I am wondering if 88 is different.

Can a 3g be damaging overkill?

Reply #35 – September 24, 2007, 11:45:33 PM

88's had the predecessor to the 3G, a Mitsubishi unit if I'm not mistaken.

Can a 3g be damaging overkill?

Reply #36 – September 25, 2007, 12:28:57 AM

Yeah, it looks a LOT like a 3g. Only no external stator plug. I just don't know much about this type of circuit... All I know is I need to figure it out ASAP!

Can a 3g be damaging overkill?

Reply #37 – September 25, 2007, 12:41:06 AM

Quote from: booksix;178393

so why the heck did my 88 tc have the 3 plug (one going no where) connector and a single ring terminal output??

here is why,,,,,,,,,,,,, IS EVERYONE ON BOARD cause i honetly think this site can geter done correclty.

THE STICKY IS ONLY GOOD FOR ANY alternator with two plugs. Thats it. This will include most all 3.8 and 5.0 configs from 84 and up with slight diviations with respect to earlier years with duraspark 1,2 and 3 isolated to 83 and some 84's in the USA while further on in years for canada models

Ive been digging into this for a couple months now but i need TC people to jump on this for the sake of other TC folks.

To answer your question,,,,,You have an 88. Your wiring "should have" been exactly like what is in the sticky. Someone has in the recent past modified it to reflect the 87 setup and might be the reason for the problems on wiring issues.

The 87 had one small "D" shaped input plug connector and one "RING" lug output connector.

The 88 is identical to the sticky we have. There is nothing wrong with the sticky, its fine. The problem is our being able to have access to the 88 wiring of the TC.

Thunderchicken,, you still got reaching arms to get at mitchel on demand for the 88TC?

Tom,, you got anything?

we need to team up and do the drawing for the 87 and 88 TC as an addendum to the sticky.

Can a 3g be damaging overkill?

Reply #38 – September 25, 2007, 12:47:18 AM

Quote from: booksix;178474

Yeah, it looks a LOT like a 3g. Only no external stator plug. I just don't know much about this type of circuit... All I know is I need to figure it out ASAP!

here you go.... you help us help you. Go to one of those shops that perfrom electrical diagnostics on cars. Ask if you can pay them for a copy of the charge diagram on the 87 and 88 tc. Ask if they have access to a software that covers wiring on a ton of cars old and new and buy a copy of the diagram. we already have the 87 wiring but it would be nice to see what other layouts there are out there.

scan it and post it.

once we have it,, we can take it from there.

I highly suggest you dont do this until its looked at and layed out by the pros here. Thats only a suggestion with good intentions.

Can a 3g be damaging overkill?

Reply #39 – September 25, 2007, 12:58:14 AM

and back to what thunderchicken said about the meter,,,,

the yellow wire up in the drawing fila posted is in parallel with the actual meter. That yellow wire is acting like a shunt. In other words,, the wire is calibrated to a specific size/length/kcmil to drop a specific voltage of i would guess about .018vdc max.

that would be 18mvdc the meter is reading across at max. as the voltage across that wire decreases, the meter will also decrease in needle sweep.

In a controlled and cooled situation, shunt systems are very practical and accurate and are used in a wide array of equipment, in an engine bay, they are not.

Can a 3g be damaging overkill?

Reply #40 – September 25, 2007, 01:07:58 AM

Quote from: DMC24guy;178198

I did NOT botch the installation. I followed the official instructions over at NATO, used all the components recommended in that Installation guide, yet it caught fire. You are WRONG.

yeah but see,,, you still have not posted any pics that people can make heads or tails out of.

I stuck up for you a little cause i understand the very part of the install you did not do. You explained what you did and it appeared correct that you did not have to do that part.
You did double up your wire output by using two bk/or wires. A few people stuck for you in some shape or form. I simply wanted to get to the bottom of it. Everytime i brought up pics or whatever, you never got back with answers. Actually, the thread died. Im still puzzled and your the reason why im pushing so hard to fix this problem we have here. Its just as much your responsiblity to help this guy out and others but also, find the energy to kick this problem in the ass and not let it happen to you again.
Id vote you be the best candidate for the task of laying out the wiring diagram if you feel up to it. you have the most to gain actually.

Can a 3g be damaging overkill?

Reply #41 – September 25, 2007, 08:52:18 AM

Quote from: jcassity;178475

Thunderchicken,, you still got reaching arms to get at mitchel on demand for the 88TC?

I have Mitchell on demand in my lap. It's on the laptop computer. I also have two 1987 EVTM's and a 1988 EVTM. My Mitchell diagrams show three wires at the alt: black/orange (output), yellow/white (A terminal, hot at all times), and light green/red (I terminal, hot when ign in RUN). Dunno what the EVTM's show as they're out in the garage

Quote from: jcassity;178478

and back to what thunderchicken said about the meter,,,,

the yellow wire up in the drawing fila posted is in parallel with the actual meter. That yellow wire is acting like a shunt. In other words,, the wire is calibrated to a specific size/length/kcmil to drop a specific voltage of i would guess about .018vdc max.

that would be 18mvdc the meter is reading across at max. as the voltage across that wire decreases, the meter will also decrease in needle sweep.

In a controlled and cooled situation, shunt systems are very practical and accurate and are used in a wide array of equipment, in an engine bay, they are not.

They are also not practical or accurate when you add a second shunt, which is what you are essentially doing when you run the new output wire.

Can a 3g be damaging overkill?

Reply #42 – September 25, 2007, 08:53:09 AM

Ok, I can do some research and get some diagrams... But I just want to understand completely: No one on here has done a 3g install on an 88TC? Just making sure I understand what's being said. The py part about all this is I ordered all the parts I need to do this and I'm definitely NOT gonna rush it, but my car has to be on the road by the end of tomorrow (wednesday, 26). Looks like I may have to return the alternator and be stuck with a stocker for now....?

Can a 3g be damaging overkill?

Reply #43 – September 25, 2007, 09:24:38 AM

Would it help at all to give you colors from my actual car or test voltages with the key on/off? I can get whatever diagrams from a shop I know but not for a day or two.

Can a 3g be damaging overkill?

Reply #44 – September 25, 2007, 09:33:56 AM

I feel like I'm talking to myself this morning but that's ok. How can I get a hold of Jeff Korn? His article on NATO says he did this in an 88TC. It all sounds pretty good until connecting his 3 10 gauge output wires... His explanation as far as cutting and splicing in different places, etc... is kind of confusing. But obviously he got it to work somehow... It does concern me a bit that the title on the browser for the 3G install page is "Cold Air Induction Install" though! :hick: