Changing from Ext Reg Alternator to Internal Reg Alt wiring?

[smokey503]

Here is a little background on my situation.
I had a 1972 Super Beetle that my wife wrecked. I bought a 74 Super to fix up.
When I got the 74 Super, it did not have a motor. So I decided to fit the one from my 72 in.
Since the wiring in the 74 looked to be untouched and in really good shape, I wanted to find the correct Alternator with the external Reg.
One call to my old VW buddy and he had one on his shelf that he pulled from a known working car.
He installed the Alternator in my fan housing and went home to install the fan shroud and found the Alternator shaft was bent, causing the pulley to wobble.
Called him back and he refunded my money. Great guy by the way.
Finally I decided to get a new Alternator and bought the Bosch Al82 Internal reg Alternator.
I think I made the mistake of using the conversion wiring from a Gen to a Alternator. I have some extra wires that were not mentioned in the Conversion wiring diagram I found on here.
The diagram I read said to Remove the Regulator under the back seat. Splice the small Green wire to Small Blue wire (Gen/Alt light) Then connect the large Reg wire from the Alternator to the other Red wires. So there should be 3 thick Red wires connected.
Looking at mine, it seems like I have a few extra wires that were not mentioned in the conversion.
For example a solid thick Red wire with a Grew wire attached at the connector.
A thick Red/White striped wire by itself.
A smaller Red wire by itself
Spliced the Green and Blue wire together
A thick Red/White wire with a smaller Red wire attached at the connector that has the Black fuse holder in it. The other end seems to have a black wire running from the black fuse holder running to nothing.

Basically All I did was remove the Regulator and spliced the Blue and Green wire together. Then realized there were a couple extra wires and did not want to mess anything up.
Hopefully a few on here can help diagnose what I need to do and where the wires need to go.

Also the rear defroster wiring is still hooked up. I need to disconnect it due to the window grids are shot and the tab on the window to connect the wiring to is gone.

I hope this makes sense and someone can either shoe me some pictures or point me in the right direction.
The wiring diagrams for my year are really confusing for me to understand.

Once again, Thank you all for your help.
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If a car travels the speed of light, would the headlights work?

[Glenn]

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Glenn
74 Beetle Specs | 74 Beetle Restoration | 2180cc Engine
"You may not get what you pay for, but you always pay for what you get"

Member #1009

#BlueSquare

עַם יִשְׂרָאֵל חַי

[Joel]

Do you still have the white 4 way connector block that all those wire connected too?

The red with smaller grey wire just runs through to the diagnosis port so doesn't actually do anything.

THere is one other big red wire missing from your pic that goes upto the fuse box.

The small red and small brown are now redundant wires.
THe other end of the green wire at the alt just needs plugging to the warning light terminal.
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Quick little bug, you got a Porsche motor in that?
1974 Germanlook 1303 2.5 Suba-Beetle

[smokey503]

Is this the same as wiring a External Regulated Alternator to a Internal Regulated Alternator?

What is confusing me is what do I do with the thick Red wire with the Grey wire attached to it at the connector? I thought that was the Red wire you connect all 3 large Red together?
Next is the Thick Red/White wire with a solid red wire leading to a Black fuse holder, on the other end of the black fuse holder is a Black wire leading to nothing. Not sure what to do with that one either.
_________________
If a car travels the speed of light, would the headlights work?

[Joel]

Yep, same process.

As I mentioned earlier the big red wire with the small grey one is part of the diagnostic connector, you can plug it in with the others or leave it hanging but it does nothing.

THe inline fuse holder with the black wire coming off is the rear defrost, it should go over the relay.

All those big red wires all need connecting together.
Excuse my other mess of wiring here but they should all connect together in a white plastic 4 way block like this:

There should be 4 big red wires in total.
1 red/white from the battery
1 red/white to the fuse box
1 red/white to the alt B+
and the plain red one goes to the diagnostic plug.

They all need connecting together.
_________________
Quick little bug, you got a Porsche motor in that?
1974 Germanlook 1303 2.5 Suba-Beetle

[smokey503]

[Joel]

Theres a big red one missing from the pics.

Its either the one that comes across from the battery positive or the one that heads up the front to the fusebox.

but they all just plug into the block you're holding.

Theres only 2 wires with an int/reg alt.

THe big red B+ which needs to find its way to the battery
and the warning light wire which you already have sorted.
_________________
Quick little bug, you got a Porsche motor in that?
1974 Germanlook 1303 2.5 Suba-Beetle

[smokey503]

This one might be the one you are speaking of being missing in the pics. It is a thick Red wire leading to the Battery terminal.

This one was hooked together using a twist on connector Would I just reconnect it by Splicing it or using a Single connector? Stupid question but this wire leads to the engine area, this one confuses me on where it connects to.

I really appreciate you all for taking your time to help me. If you need any more pics I can run out and take them if needed.

Thank you.
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If a car travels the speed of light, would the headlights work?

[Joel]

Yep, that was the missing wire.
It and the other 3 big red ones all go into the connector block.


That other one that is just twisted together looks like the starter motor wire.
It used to have one of those white plastic connector things as well.
Looks as though someone has chopped that out and twitched them together.

As long as it's getting a good connection and is well insulated you can do what you like with it.
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Quick little bug, you got a Porsche motor in that?
1974 Germanlook 1303 2.5 Suba-Beetle

[smokey503]

The small plain Red/Brown ones, Tape them off? Believe you said it is redundant now anyway.
I just went out and hooked up the 4 large Red wires to the 4way connector. Have the Green/Blue wires spliced together.
Now I just need to figure out what to do with all the leftover wires that were for the external regulator Alternator in the Engine Bay.

You say I have the warning light wire sorted out, this is the Green wire in the Engine bay that get's hooked up to D+???

Then all I need to do is connect the Big Red B+ which needs to find its way to the battery, which has me confused again.

I see the Red B+ Wire in the Engine bay where it connects to the old Alternator. I take it, I need to hook this wire up to B+ on the new Alternator.
Now, does the B+ from the Alternator go to the 4-way plug that I plugged the 4 large Red wires into, and also is that ran to the battery from there?

Then there is the Starter wire in Grey covering. I am going to use the stock connector. Where on the Starter does it go?

I feel like a bother asking so many questions. I really do not understand the 1974 wiring diagrams at all. I understand the 1972 Super Beetle wiring diagrams.
Has much changed in the wiring from 72-74 at the Starter, Battery, Reverse lights and the License plate light wiring? Just wondering if I can use the 72 Wiring diagram for that?
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If a car travels the speed of light, would the headlights work?

[Joel]

[smokey503]

So now I need to disable the seatbelt interlock relay system. I thought I seen where all you need to do take a wire and jump two terminals on the fuse box, but I don't remember which. Or if that is even the correct way.

Thank you for the help.
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If a car travels the speed of light, would the headlights work?

[glutamodo]

The seat belt interlock relay... you need to jumper/bypass the starter terminal 50 connections. If you remove the relay, you'll see terminal numbers on it, find which ones are "C" and "50" - then see which ones they are on the panel. Those are the ones you need to install a jumper between.

also, from Speedy Jim's website: