Was poking my nose around thesambas forums to find some clues....
Saw this link posted by no other than Glenn.....
http://www2.cip1.com/ProductDetails.asp?ProductCode=BOS-0-190-600-017
If this is the alt regulator, Ive never seen it in person.
Asad.
> From: [EMAIL PROTECTED]> To: [email protected]> Date: Tue, 24 Jun 2008
> 18:55:51 +0000> Subject: Re: [vintagvw] Fitting an Alternator in my 68 bug.>
> > > Thanks Mike,> > My failing brain did work out that the diagram in the
> forwarded link by Marc did indeed represent one of those push on plastic
> connectors. The revelation however came after I had sent my last post and I
> was staring at the diagram. Thanks for the clarification.> > Today while
> rummaging around the stored engine which came off my 59 ragtop (a late
> sixties unit with a post 73 alternator) I noticed the external regulator
> lying near it. It is a similar 'box' to the gen ones but a bit smaller. It
> had six wires coming out of it which joined a plastic six point connector. I
> believe its a Jap aftermarket one as it had no markings as such, just a torn
> out sticker at one side.> > Could anyone post a link to some pics of the
> alternator regulators??? The separate ones I have never seen either in person
> or on the www. The one which is built in to the later kind of alt I have seen
> and in fact do have a loose one lying around too. That is a small thin black
> plastic unit.> > Thanks a lot for describing the later wiring diagrams. Now I
> do have the courage to tackle them!> > Best regards.> > > From: [EMAIL
> PROTECTED]> To: [email protected]> Date: Sun, 22 Jun 2008 20:43:47
> -0400> Subject: Re: [vintagvw] Fitting an Alternator in my 68 bug.> > Asad,>
> The voltage regulators you appear to be describing are mechanical types > for
> generators. You need an outboard, solid-state type regulator matched >
> specifically to your particular model of alternator. As Marc said, each >
> different alternator uses a specific regulator. He failed to mention the >
> fact that they are smaller, solid-state, potted units with a short, >
> multi-conductor harness with a plastic multi-pin connector. That is what > he
> was alluding to when he said that were wires coming out of the regulator. >
> If you have an internally-regulated alternator, it'll have one large >
> threaded terminal that is B+ for your large red wire, one push-on terminal >
> for your blue wire to your dash idiot light, and one threaded screwhole for >
> your brown earth ground wire. If your harness is bastardized, and the >
> colors don't match original, trace them individually and mark the ends with >
> tape that's the color of what they should be. Your externally-regulated >
> alternators are difficult or impossible to setup to work properly without >
> the correctly matched regulator assembly (Bosch, Motorola, etc.).> The later
> 'current-track' wiring digrams don't show the wiring in the > shape of the
> car (like the earlier drawings do), but the circuit is > represented the
> same, from positive source at the top to ground at the > bottom. Use all the
> markings, references, legends, colors, sizes, etc. to > help you get a feel
> for tracing the circuit. When a current track ends in > the middle with
> number, refer to that current track number to see the > continuation of that
> particular circuit. It's usually on a different page, > and this can make it
> harder to trace. But, once you understand this, and > begin working with it,
> it will get easier.> Good luck, and hope this helps.> > Mike B.> > -----
> Original Message ----- > From: "asad ishaque" <[EMAIL PROTECTED]>> To:
> <[email protected]>> Sent: Sunday, June 22, 2008 3:10 PM> Subject: Re:
> [vintagvw] Fitting an Alternator in my 68 bug.> > > > Thanks Marc for your
> reply,> > The plot only thickens!! Different regulators for generators and >
> alternators??? And I was struggling to find just one!> > Looked at my stash
> and found four regulators. All used but seem > to be in good shape. One is a
> Jap aftermarket unit so out. One is a pre 66 > type which piggy backs onto
> the generator. Out.> > I’m left with two which are probably Brazilian Bosch.
> The first > has the part number 9190063002 (can barely read the number so may
> be off by > a digit or two). There is also the text ‘VA 14V 25A’ and then 271
> written > on. The terminals are two spade types and one screw on type plus
> one > provision for Earth/ground.> > The second came off a 69 scrapped at the
> local yard. I cannot find a > part number anywhere although the posts where
> it should be are clean. It has > the terminals DF, D+ and B+. Another
> unmarked terminal connects to the D+ at > the back.> > Last time I checked,
> the local VW store was out of OEM regulators. > Will check again but hopes
> are not too high. Which leaves me with the last > resort of buying an
> aftermarket Jap/Chinese version off the local market.> > The post 73 diagrams
> on the www are stangely complicated. The earlier > ones are a cake to read
> and understand using my knowledge of high school > Physics. Still not very
> sure despite the two forwarded links. The color > codes don’t help as the
> wiring has been messed around with in the past. So > no factory colors for me
> to act as a guide.> > I can run new wires for the three pin alternator. The
> harness must > have been altered several times so it does not really matter.>
> > When you say ‘’ The alternator regulator has four wires coming out of >
> it.’’ Does this mean that this has wires coming out instead of push on spade
> > terminals?> > I’m sorry but I’m still quite lost……racking my brains and
> going > bonkers.......I’m thinking of taking a good look and perhaps even
> dissecting > my current setup and seeing where each wire goes. Maybe a
> sketched wiring > diagram of the current setup would give me pointers.> >
> Thanks for the clarification on the road draft tube.> > Best regards,> >
> Asad> Karachi, Pakistan.> Date: Sat, 21 Jun 2008 14:42:16 -0700> From: >
> [EMAIL PROTECTED]> To: [email protected]> Subject: Re: [vintagvw] >
> Fitting an Alternator in my 68 bug.> > Biggest problem with the >
> externally-regulated ("4-pin" as you put it) alternators is finding a >
> regulator to go with.> On the early factory-alternator cars that used this, >
> it was mounted under the back seat (same place as the regulator for a >
> generator) and there had to be three small wires between there and the >
> engine compartment for connecting to the alternator's D+, D-, and DF >
> terminals. On a generator car like your `68 there aren't enough wires in the
> > harness, so you'll either need to poke a couple through or mount the >
> regulator in the engine compartment.> The wiring isn't difficult. After >
> removing the generator regulator you need to bond all three of the large red
> > wires which went to it together and insulate the connection since it's
> "hot" > at all times.> The alternator regulator has four wires coming out of
> it. One > (blue) is not used.> Brown goes to D-> Green goes to DF> Red goes
> to D+ > ...the blue wire going up to the warning lamp on the dash needs to be
> > spliced into D+ also.> http://www.nls.net/mp/volks/schem/gen_alt.htm> >
> http://www.nls.net/mp/volks/schem/altreg.gif> > To use the >
> internally-regulated alternator you still need to join the 3 big red wires, >
> but all you have to do is connect the warning light blue wire to the green >
> wire (that was DF on the generator) and connect the other end of the green >
> wire to the D+ terminal on the alternator.> > > The "bent" road-draft tube >
> was adopted in 1968, same time as the warm-air pickup elbow/hose was >
> increased in size.> > > --- On Sat, 6/21/08, asad ishaque > <[EMAIL
> PROTECTED]> wrote:> > > From: asad ishaque > <[EMAIL PROTECTED]>> > Subject:
> [vintagvw] Fitting an Alternator in > my 68 bug.> > To:
> [email protected]> > Date: Saturday, June 21, 2008, > 10:42 AM> > Hello
> Volks!> > > > Have a few questions again as I would> > > finally be putting
> on a post 73 style alternator on my> > daily driven 68 > bug.> > > > I have a
> three pin (actually with four> > connectors in total) > alternator serviced
> and ready to go> > in. > > > > Meanwhile I also bought > another three pin> >
> and a two pin alt. That makes me ‘rich’ with three> > > spare alternators! >
> > > > Now the questions:> > > > -Is the two pin model > better than the three
> pin one??? In> > that case I would like to put this on > my daily driver> >
> instead of the ready three pin one.> > > > -I am quite > sure the two pin has
> a builtin solid state> > regulator. How do I check this > for good working
> state??> > > > -How do I connect the three pin alt to the > wiring on my> >
> daily driven 68 which currently has a Japanese aftermarket> > > generator
> slapped on (discussed here before).> > > > -Can anyone guide me > in ‘idiot’s
> terms’ on the> > connections of both the two and three pin > models? I shall>
> > look at the Bentley wiring diagrams tonight but maybe > some> > pointers
> would help.> > > > -Is it possible for me to service the > alternators at
> home??> > When I had the first one done at a local shop, all > he did> > was
> clean the insides up, replace the bearings and did a > > > Continuity Test
> between the winding and the armature. It> > looked like > something I can
> handle myself. Any suggestions?> > > > > > Have a few > holidays from work so
> plan to dive head first> > into this tomorrow or day > after.> > > > Thanks
> in advance.> > > > Asad> > Karachi, Pakistan.> > > > > PS: Btw while shopping
> for alternator pedestals I have come> > across two > styles of breather pipe
> assemblies. One has an> > almost straight drain pipe > while other has it
> with a couple> > of bends. What was this difference > for??> > > > > >
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