<TABLE cellSpacing=1 cellPadding=6 width="100%" border=0><TBODY><TR><TD colSpan=2><TABLE width="100%" border=0><TBODY><TR><TD style="PADDING-TOP: 4px" vAlign=top colSpan=2>[FONT=Trebuchet MS, Verdana, Tahoma, Arial]schematic for X1/9 voltage regulator<!-- google_ad_section_end -->
[/FONT][FONT=Trebuchet MS, Verdana, Tahoma, Arial]September 20 2000 at 6:43 AM[FONT=Trebuchet MS, Verdana, Tahoma, Arial][/FONT][/FONT]</TD><TD vAlign=top align=right>[FONT=Trebuchet MS, Verdana, Tahoma, Arial]<SCRIPT language=Javascript> <!-- var n54_em; n54_em = ""; n54_em = n54_em + "r";n54_em = n54_em + "o";n54_em = n54_em + "b";n54_em = n54_em + "e";n54_em = n54_em + "r";n54_em = n54_em + "t";n54_em = n54_em + ".";n54_em = n54_em + "m";n54_em = n54_em + ".";n54_em = n54_em + "d";n54_em = n54_em + "a";n54_em = n54_em + "n";n54_em = n54_em + "i";n54_em = n54_em + "e";n54_em = n54_em + "l";n54_em = n54_em + "a";n54_em = n54_em + "k";n54_em = n54_em + "@";n54_em = n54_em + "l";n54_em = n54_em + "m";n54_em = n54_em + "c";n54_em = n54_em + "o";n54_em = n54_em + ".";n54_em = n54_em + "c";n54_em = n54_em + "o";n54_em = n54_em + "m"; document.write("bob danielak"); // --> </SCRIPT>bob danielak <NOSCRIPT></NOSCRIPT> [/FONT]</TD></TR><TR><TD vAlign=bottom colSpan=3><HR></TD></TR><TR><TD colSpan=3>[FONT=Trebuchet MS, Verdana, Tahoma, Arial]<!-- google_ad_section_start -->hi guys,
any of you have the electrical schematic for
the external marelli solid-state voltage regulator
used on early X1/9's.
i am looking for the internal workings,
but an overall diagram would also be helpful.
in my quest for a new alternator for my 78
x1/9 i could not find a late-model bosch
unit for a car WITHOUT AC - that came with a
pulley.
i wound up ordering what was supposed to be
the proper unit for a 78 from PEP BOYS.
it was markedly different from the unit
i had in there.
no pulley, no heat shield (couldn't even use the one i had because of 4 bolts insteda of 3).
the electrical connections are way different, too.
there's a power out, field winding, and another
that appears to be to work a charge indicator relay, instead of a D+ output.
i wound up having to make my own regulator from scratch (you don't have to be an EE, but it helps).
it functions, but i believe i'm running it too
hot.
before i left on a business trip, the alternator belt was shrieking on acceleration.
disconnecting the B+ connection made it go away.
i believe i was overcharging the battery
so excessive field current, hence output current,
must be loading it down.
or maybe heating it up. or causing too high
of a magnetic field (will it cause axial
strain on the bearings).
so i hope i haven't hurt the bearings...
how about those iksra alternators for YUGO.
do they fit in an X???
bob.d.<!-- google_ad_section_end -->
[/FONT]</TD></TR></TBODY></TABLE><TABLE cellPadding=4 width="100%" border=0><TBODY><TR><TD vAlign=top noWrap align=left>[FONT=Trebuchet MS, Verdana, Tahoma, Arial] [/FONT]</TD><TD vAlign=top align=right>[FONT=Trebuchet MS, Verdana, Tahoma, Arial]
[/FONT]</TD></TR></TBODY></TABLE></TD></TR><TR><TD>[FONT=Trebuchet MS, Verdana, Tahoma, Arial]Author[/FONT]</TD><TD>[FONT=Trebuchet MS, Verdana, Tahoma, Arial]Reply[/FONT]</TD></TR><TR><TD vAlign=top noWrap width="17.9%">[FONT=Trebuchet MS, Verdana, Tahoma, Arial]<SCRIPT language=Javascript> <!-- var n54_em; n54_em = ""; n54_em = n54_em + "s";n54_em = n54_em + "e";n54_em = n54_em + "r";n54_em = n54_em + "v";n54_em = n54_em + "i";n54_em = n54_em + "c";n54_em = n54_em + "e";n54_em = n54_em + "@";n54_em = n54_em + "i";n54_em = n54_em + "m";n54_em = n54_em + "p";n54_em = n54_em + "o";n54_em = n54_em + "r";n54_em = n54_em + "t";n54_em = n54_em + "a";n54_em = n54_em + "u";n54_em = n54_em + "t";n54_em = n54_em + "o";n54_em = n54_em + "t";n54_em = n54_em + "e";n54_em = n54_em + "c";n54_em = n54_em + "h";n54_em = n54_em + ".";n54_em = n54_em + "c";n54_em = n54_em + "o";n54_em = n54_em + "m"; document.write("steve ambrose"); // --> </SCRIPT>steve ambrose <NOSCRIPT></NOSCRIPT>[/FONT]
[FONT=Trebuchet MS, Verdana, Tahoma, Arial][/FONT]</TD><TD style="PADDING-LEFT: 15px" vAlign=top><TABLE cellSpacing=0 cellPadding=1 width="100%" border=0><TBODY><TR><TD align=left>[FONT=Trebuchet MS, Verdana, Tahoma, Arial]<!-- google_ad_section_start -->Yikes!!!!!!!<!-- google_ad_section_end -->
[/FONT][FONT=Trebuchet MS, Verdana, Tahoma, Arial][/FONT]</TD><TD vAlign=top align=right>[FONT=Trebuchet MS, Verdana, Tahoma, Arial]September 20 2000, 7:51 AM [/FONT]</TD></TR></TBODY></TABLE><TABLE cellSpacing=0 cellPadding=1 width="100%" border=0><TBODY><TR><TD style="PADDING-LEFT: 15px">
[FONT=Trebuchet MS, Verdana, Tahoma, Arial]<!-- google_ad_section_start -->Hi Bob, sounds like no fun to me!!! I'm very sorry to hear you couldn't locate a Bosch unit.
The good news is that yes, the Yugo alternator will bolt right in.. might be the better way to go than what you have in there now! Good luck,
Steve<!-- google_ad_section_end -->
[/FONT]</TD></TR></TBODY></TABLE><TABLE cellSpacing=0 cellPadding=4 width="100%" border=0><TBODY><TR><TD vAlign=top align=left>[FONT=Trebuchet MS, Verdana, Tahoma, Arial] [/FONT]</TD><TD vAlign=top noWrap align=right>[FONT=Trebuchet MS, Verdana, Tahoma, Arial]
[/FONT]</TD></TR></TBODY></TABLE></TD></TR><TR><TD vAlign=top noWrap width="17.9%">[FONT=Trebuchet MS, Verdana, Tahoma, Arial]<SCRIPT language=Javascript> <!-- var n54_em; n54_em = ""; n54_em = n54_em + "j";n54_em = n54_em + "f";n54_em = n54_em + "p";n54_em = n54_em + "4";n54_em = n54_em + "5";n54_em = n54_em + "7";n54_em = n54_em + "@";n54_em = n54_em + "a";n54_em = n54_em + "o";n54_em = n54_em + "l";n54_em = n54_em + ".";n54_em = n54_em + "c";n54_em = n54_em + "o";n54_em = n54_em + "m"; document.write("John"); // --> </SCRIPT>John <NOSCRIPT></NOSCRIPT>[/FONT]
[FONT=Trebuchet MS, Verdana, Tahoma, Arial][/FONT]</TD><TD style="PADDING-LEFT: 30px" vAlign=top><TABLE cellSpacing=0 cellPadding=1 width="100%" border=0><TBODY><TR><TD align=left>[FONT=Trebuchet MS, Verdana, Tahoma, Arial]<!-- google_ad_section_start -->hey bob...<!-- google_ad_section_end -->
[/FONT][FONT=Trebuchet MS, Verdana, Tahoma, Arial][/FONT]</TD><TD vAlign=top align=right>[FONT=Trebuchet MS, Verdana, Tahoma, Arial]September 22 2000, 9:16 PM [/FONT]</TD></TR></TBODY></TABLE><TABLE cellSpacing=0 cellPadding=1 width="100%" border=0><TBODY><TR><TD style="PADDING-LEFT: 30px">
[FONT=Trebuchet MS, Verdana, Tahoma, Arial]<!-- google_ad_section_start -->Checked out your site below, are those NJ plates on your X?? If so, I'm in northern NJ (Morris Co.)and there is a U-Pullit yard across the highway from my workplace with several Yugos, some fairly recent arrivals. I also know of a yard in the Pine Barrens with a couple of X's. Email me if I can be of any help in the alternator search..
Good luck, John
<!-- google_ad_section_end -->
[/FONT]</TD></TR></TBODY></TABLE><TABLE cellSpacing=0 cellPadding=4 width="100%" border=0><TBODY><TR><TD vAlign=top align=left>[FONT=Trebuchet MS, Verdana, Tahoma, Arial] [/FONT]</TD><TD vAlign=top noWrap align=right>[FONT=Trebuchet MS, Verdana, Tahoma, Arial]
[/FONT]</TD></TR></TBODY></TABLE></TD></TR><TR><TD vAlign=top noWrap width="17.9%">[FONT=Trebuchet MS, Verdana, Tahoma, Arial]Ulix[/FONT]
[FONT=Trebuchet MS, Verdana, Tahoma, Arial][/FONT]</TD><TD style="PADDING-LEFT: 15px" vAlign=top><TABLE cellSpacing=0 cellPadding=1 width="100%" border=0><TBODY><TR><TD align=left>[FONT=Trebuchet MS, Verdana, Tahoma, Arial]<!-- google_ad_section_start -->DIY regulator<!-- google_ad_section_end -->
[/FONT][FONT=Trebuchet MS, Verdana, Tahoma, Arial][/FONT]</TD><TD vAlign=top align=right>[FONT=Trebuchet MS, Verdana, Tahoma, Arial]September 20 2000, 9:49 AM [/FONT]</TD></TR></TBODY></TABLE><TABLE cellSpacing=0 cellPadding=1 width="100%" border=0><TBODY><TR><TD style="PADDING-LEFT: 15px">
[FONT=Trebuchet MS, Verdana, Tahoma, Arial]<!-- google_ad_section_start -->Bob,
it sounds like you enjoy this kind of stuff, but what I would do is return the alternator to Pep Boys since it isn't the right one. Then buy the right one from a Fiat parts vendor or have your old one rebuilt.
Also, IAP sells solid state regulators for Marelli alternators and also for the early Bosch units (not in their catalog).
Ulix ('74 Bosch mini-alternator)<!-- google_ad_section_end -->
[/FONT]</TD></TR></TBODY></TABLE><TABLE cellSpacing=0 cellPadding=4 width="100%" border=0><TBODY><TR><TD vAlign=top align=left>[FONT=Trebuchet MS, Verdana, Tahoma, Arial] [/FONT]</TD><TD vAlign=top noWrap align=right>[FONT=Trebuchet MS, Verdana, Tahoma, Arial]
[/FONT]</TD></TR></TBODY></TABLE></TD></TR><TR><TD vAlign=top noWrap width="17.9%">[FONT=Trebuchet MS, Verdana, Tahoma, Arial]<SCRIPT language=Javascript> <!-- var n54_em; n54_em = ""; n54_em = n54_em + "r";n54_em = n54_em + "o";n54_em = n54_em + "b";n54_em = n54_em + "e";n54_em = n54_em + "r";n54_em = n54_em + "t";n54_em = n54_em + ".";n54_em = n54_em + "m";n54_em = n54_em + ".";n54_em = n54_em + "d";n54_em = n54_em + "a";n54_em = n54_em + "n";n54_em = n54_em + "i";n54_em = n54_em + "e";n54_em = n54_em + "l";n54_em = n54_em + "a";n54_em = n54_em + "k";n54_em = n54_em + "@";n54_em = n54_em + "l";n54_em = n54_em + "m";n54_em = n54_em + "c";n54_em = n54_em + "o";n54_em = n54_em + ".";n54_em = n54_em + "c";n54_em = n54_em + "o";n54_em = n54_em + "m"; document.write("bob danielak"); // --> </SCRIPT>bob danielak <NOSCRIPT></NOSCRIPT>[/FONT]
[FONT=Trebuchet MS, Verdana, Tahoma, Arial][/FONT]</TD><TD style="PADDING-LEFT: 30px" vAlign=top><TABLE cellSpacing=0 cellPadding=1 width="100%" border=0><TBODY><TR><TD align=left>[FONT=Trebuchet MS, Verdana, Tahoma, Arial]<!-- google_ad_section_start -->re:diy regulator<!-- google_ad_section_end -->
[/FONT][FONT=Trebuchet MS, Verdana, Tahoma, Arial][/FONT]</TD><TD vAlign=top align=right>[FONT=Trebuchet MS, Verdana, Tahoma, Arial]September 22 2000, 9:15 AM [/FONT]</TD></TR></TBODY></TABLE><TABLE cellSpacing=0 cellPadding=1 width="100%" border=0><TBODY><TR><TD style="PADDING-LEFT: 30px">
[FONT=Trebuchet MS, Verdana, Tahoma, Arial]<!-- google_ad_section_start -->ulix hit the nail on the head:
i DO enjoy this kind of stuff.
..what is that saying about needing a ladder
so i built a ferris-wheel...
i most certainly intend to bring the alternator back. i was just looking for a way to drive the car until i get the proper unit.
i spent some time trying to find a late-model
bosch. and i even ordered one from (i won't
say who), but they sent me an A/C version,
without a pulley. on all counts, no good for me.
the pep-boys option was to be a quick-fix.
the problem was that i didn't know what
i had got. it was shorter than the stock unit,
and looked more like a early-spider alternator
than an x1/9 version.
the "third" electrical connection is apparently
NOT a D+ connection. it looks like it is a "relay-control" output for the charge-light.
(i know older spiders used this type of circuit,
but i didn't know X1/9's did. maybe '74???)
so i wound up pulling an old mechanical voltage regulator from a "sleeping" spider.
this type takes B+ from the ignition switch.
since i've been striving to reduce the current
thru my ignition switch, i had to rig up an "ignition" source via a relay.
it worked, but not very well.
the voltage ran fairly high, and the battery was definitely overcharged after a week of
highway driving like this.
i built one circuit which performed the same
(simplistic) switching function in the mechanical
regulator, but gave me the option to tweak
the voltage thresholds.
and another that did a more advanced PWM control.
but the system is still flaky.
at night i noticed arcing-sparking inside the alternator. this occurs with all three voltage regulators, and even with the field winding disconnected...
this *can't* be normal.
the belt (bearing?) squeal also stops when field or B+ wired are disconnected.
the quest for the regulator schematic is one of curiosity, at this point.
and, barring a bum alternator to begin with,
i feel like i should be able to make-this-work, after the time i've already invested...
once i've picked up the gauntlet, it's tough to toss it aside...
bob.d.
<!-- google_ad_section_end -->
[/FONT]</TD></TR></TBODY></TABLE><TABLE cellSpacing=0 cellPadding=4 width="100%" border=0><TBODY><TR><TD vAlign=top align=left>[FONT=Trebuchet MS, Verdana, Tahoma, Arial] [/FONT]</TD><TD vAlign=top noWrap align=right>[FONT=Trebuchet MS, Verdana, Tahoma, Arial]
[/FONT]</TD></TR></TBODY></TABLE></TD></TR><TR><TD vAlign=top noWrap width="17.9%">[FONT=Trebuchet MS, Verdana, Tahoma, Arial]Ulix[/FONT]
[FONT=Trebuchet MS, Verdana, Tahoma, Arial][/FONT]</TD><TD style="PADDING-LEFT: 45px" vAlign=top><TABLE cellSpacing=0 cellPadding=1 width="100%" border=0><TBODY><TR><TD align=left>[FONT=Trebuchet MS, Verdana, Tahoma, Arial]<!-- google_ad_section_start -->A/C Bosch<!-- google_ad_section_end -->
[/FONT][FONT=Trebuchet MS, Verdana, Tahoma, Arial][/FONT]</TD><TD vAlign=top align=right>[FONT=Trebuchet MS, Verdana, Tahoma, Arial]September 22 2000, 9:44 AM [/FONT]</TD></TR></TBODY></TABLE><TABLE cellSpacing=0 cellPadding=1 width="100%" border=0><TBODY><TR><TD style="PADDING-LEFT: 45px">
[FONT=Trebuchet MS, Verdana, Tahoma, Arial]<!-- google_ad_section_start -->Bob,
isn't an A/C alternator just one with higher output? Wouldn't that be just the ticket with your tube amp?
The '74 alternator is very different, it is not much bigger than a Coke can
It does have a single connection that is not used. That's all I know.
Ulix<!-- google_ad_section_end -->
[/FONT]</TD></TR></TBODY></TABLE><TABLE cellSpacing=0 cellPadding=4 width="100%" border=0><TBODY><TR><TD vAlign=top align=left>[FONT=Trebuchet MS, Verdana, Tahoma, Arial] [/FONT]</TD><TD vAlign=top noWrap align=right>[FONT=Trebuchet MS, Verdana, Tahoma, Arial]
[/FONT]</TD></TR></TBODY></TABLE></TD></TR><TR><TD vAlign=top noWrap width="17.9%">[FONT=Trebuchet MS, Verdana, Tahoma, Arial]<SCRIPT language=Javascript> <!-- var n54_em; n54_em = ""; n54_em = n54_em + "g";n54_em = n54_em + "f";n54_em = n54_em + "s";n54_em = n54_em + "@";n54_em = n54_em + "w";n54_em = n54_em + "o";n54_em = n54_em + "l";n54_em = n54_em + "f";n54_em = n54_em + "e";n54_em = n54_em + "n";n54_em = n54_em + "e";n54_em = n54_em + "t";n54_em = n54_em + ".";n54_em = n54_em + "c";n54_em = n54_em + "o";n54_em = n54_em + "m"; document.write("Gregory Smith"); // --> </SCRIPT>Gregory Smith <NOSCRIPT></NOSCRIPT>[/FONT]
[FONT=Trebuchet MS, Verdana, Tahoma, Arial][/FONT]</TD><TD style="PADDING-LEFT: 45px" vAlign=top><TABLE cellSpacing=0 cellPadding=1 width="100%" border=0><TBODY><TR><TD align=left>[FONT=Trebuchet MS, Verdana, Tahoma, Arial]<!-- google_ad_section_start -->Alts. & regs.<!-- google_ad_section_end -->
[/FONT][FONT=Trebuchet MS, Verdana, Tahoma, Arial][/FONT]</TD><TD vAlign=top align=right>[FONT=Trebuchet MS, Verdana, Tahoma, Arial]September 22 2000, 10:55 AM [/FONT]</TD></TR></TBODY></TABLE><TABLE cellSpacing=0 cellPadding=1 width="100%" border=0><TBODY><TR><TD style="PADDING-LEFT: 45px">
[FONT=Trebuchet MS, Verdana, Tahoma, Arial]<!-- google_ad_section_start -->The mechanical regulator can be physically adjusted to control the cutoff just by bending the tab the points are on, and the points occasionally have to be sanded to keep it from sticking. This may help the overcharging on your temp. setup.
The arcing inside the alternator makes it sound like it needs to have new brushes and the armature turned. Is this in the new one? If you are in the Seattle/Bellevue area, I can recommend a good rebuilding place, where they actually don't run when they see me (Hey it's the Fiat guy!) coming!<!-- google_ad_section_end -->
[/FONT]</TD></TR></TBODY></TABLE><TABLE cellSpacing=0 cellPadding=4 width="100%" border=0><TBODY><TR><TD vAlign=top align=left>[FONT=Trebuchet MS, Verdana, Tahoma, Arial] [/FONT]</TD><TD vAlign=top noWrap align=right>[FONT=Trebuchet MS, Verdana, Tahoma, Arial]
[/FONT]</TD></TR></TBODY></TABLE></TD></TR><TR><TD vAlign=top noWrap width="17.9%">[FONT=Trebuchet MS, Verdana, Tahoma, Arial]bob danielak[/FONT]
[FONT=Trebuchet MS, Verdana, Tahoma, Arial][/FONT]</TD><TD style="PADDING-LEFT: 60px" vAlign=top><TABLE cellSpacing=0 cellPadding=1 width="100%" border=0><TBODY><TR><TD align=left>[FONT=Trebuchet MS, Verdana, Tahoma, Arial]<!-- google_ad_section_start -->thanks for the tip...<!-- google_ad_section_end -->
[/FONT][FONT=Trebuchet MS, Verdana, Tahoma, Arial][/FONT]</TD><TD vAlign=top align=right>[FONT=Trebuchet MS, Verdana, Tahoma, Arial]September 22 2000, 11:56 AM [/FONT]</TD></TR></TBODY></TABLE><TABLE cellSpacing=0 cellPadding=1 width="100%" border=0><TBODY><TR><TD style="PADDING-LEFT: 60px">
[FONT=Trebuchet MS, Verdana, Tahoma, Arial]<!-- google_ad_section_start -->hi greg,
thanks for the tip.
i achieved the same result by installing
the homebrew electronic version.
i can adjust the voltage threshold between
13 and 14.5V.
i also had to play with series resistances
to keep the field currents down
(otherwise it would squeal).
this was a rebuilt unit.
i put less than 300mi on it...
it may have been arcing from day one...
<!-- google_ad_section_end -->
[/FONT]</TD></TR></TBODY></TABLE><TABLE cellSpacing=0 cellPadding=4 width="100%" border=0><TBODY><TR><TD vAlign=top align=left>[FONT=Trebuchet MS, Verdana, Tahoma, Arial] [/FONT]</TD><TD vAlign=top noWrap align=right>[FONT=Trebuchet MS, Verdana, Tahoma, Arial]
[/FONT]</TD></TR></TBODY></TABLE></TD></TR></TBODY></TABLE>
[/FONT][FONT=Trebuchet MS, Verdana, Tahoma, Arial]September 20 2000 at 6:43 AM[FONT=Trebuchet MS, Verdana, Tahoma, Arial][/FONT][/FONT]</TD><TD vAlign=top align=right>[FONT=Trebuchet MS, Verdana, Tahoma, Arial]<SCRIPT language=Javascript> <!-- var n54_em; n54_em = ""; n54_em = n54_em + "r";n54_em = n54_em + "o";n54_em = n54_em + "b";n54_em = n54_em + "e";n54_em = n54_em + "r";n54_em = n54_em + "t";n54_em = n54_em + ".";n54_em = n54_em + "m";n54_em = n54_em + ".";n54_em = n54_em + "d";n54_em = n54_em + "a";n54_em = n54_em + "n";n54_em = n54_em + "i";n54_em = n54_em + "e";n54_em = n54_em + "l";n54_em = n54_em + "a";n54_em = n54_em + "k";n54_em = n54_em + "@";n54_em = n54_em + "l";n54_em = n54_em + "m";n54_em = n54_em + "c";n54_em = n54_em + "o";n54_em = n54_em + ".";n54_em = n54_em + "c";n54_em = n54_em + "o";n54_em = n54_em + "m"; document.write("bob danielak"); // --> </SCRIPT>bob danielak <NOSCRIPT></NOSCRIPT> [/FONT]</TD></TR><TR><TD vAlign=bottom colSpan=3><HR></TD></TR><TR><TD colSpan=3>[FONT=Trebuchet MS, Verdana, Tahoma, Arial]<!-- google_ad_section_start -->hi guys,
any of you have the electrical schematic for
the external marelli solid-state voltage regulator
used on early X1/9's.
i am looking for the internal workings,
but an overall diagram would also be helpful.
in my quest for a new alternator for my 78
x1/9 i could not find a late-model bosch
unit for a car WITHOUT AC - that came with a
pulley.
i wound up ordering what was supposed to be
the proper unit for a 78 from PEP BOYS.
it was markedly different from the unit
i had in there.
no pulley, no heat shield (couldn't even use the one i had because of 4 bolts insteda of 3).
the electrical connections are way different, too.
there's a power out, field winding, and another
that appears to be to work a charge indicator relay, instead of a D+ output.
i wound up having to make my own regulator from scratch (you don't have to be an EE, but it helps).
it functions, but i believe i'm running it too
hot.
before i left on a business trip, the alternator belt was shrieking on acceleration.
disconnecting the B+ connection made it go away.
i believe i was overcharging the battery
so excessive field current, hence output current,
must be loading it down.
or maybe heating it up. or causing too high
of a magnetic field (will it cause axial
strain on the bearings).
so i hope i haven't hurt the bearings...
how about those iksra alternators for YUGO.
do they fit in an X???
bob.d.<!-- google_ad_section_end -->
[/FONT]</TD></TR></TBODY></TABLE><TABLE cellPadding=4 width="100%" border=0><TBODY><TR><TD vAlign=top noWrap align=left>[FONT=Trebuchet MS, Verdana, Tahoma, Arial] [/FONT]</TD><TD vAlign=top align=right>[FONT=Trebuchet MS, Verdana, Tahoma, Arial]
[FONT=Trebuchet MS, Verdana, Tahoma, Arial][/FONT]</TD><TD style="PADDING-LEFT: 15px" vAlign=top><TABLE cellSpacing=0 cellPadding=1 width="100%" border=0><TBODY><TR><TD align=left>[FONT=Trebuchet MS, Verdana, Tahoma, Arial]<!-- google_ad_section_start -->Yikes!!!!!!!<!-- google_ad_section_end -->
[/FONT][FONT=Trebuchet MS, Verdana, Tahoma, Arial][/FONT]</TD><TD vAlign=top align=right>[FONT=Trebuchet MS, Verdana, Tahoma, Arial]September 20 2000, 7:51 AM [/FONT]</TD></TR></TBODY></TABLE><TABLE cellSpacing=0 cellPadding=1 width="100%" border=0><TBODY><TR><TD style="PADDING-LEFT: 15px">
[FONT=Trebuchet MS, Verdana, Tahoma, Arial]<!-- google_ad_section_start -->Hi Bob, sounds like no fun to me!!! I'm very sorry to hear you couldn't locate a Bosch unit.
The good news is that yes, the Yugo alternator will bolt right in.. might be the better way to go than what you have in there now! Good luck,
Steve<!-- google_ad_section_end -->
[/FONT]</TD></TR></TBODY></TABLE><TABLE cellSpacing=0 cellPadding=4 width="100%" border=0><TBODY><TR><TD vAlign=top align=left>[FONT=Trebuchet MS, Verdana, Tahoma, Arial] [/FONT]</TD><TD vAlign=top noWrap align=right>[FONT=Trebuchet MS, Verdana, Tahoma, Arial]
[FONT=Trebuchet MS, Verdana, Tahoma, Arial][/FONT]</TD><TD style="PADDING-LEFT: 30px" vAlign=top><TABLE cellSpacing=0 cellPadding=1 width="100%" border=0><TBODY><TR><TD align=left>[FONT=Trebuchet MS, Verdana, Tahoma, Arial]<!-- google_ad_section_start -->hey bob...<!-- google_ad_section_end -->
[/FONT][FONT=Trebuchet MS, Verdana, Tahoma, Arial][/FONT]</TD><TD vAlign=top align=right>[FONT=Trebuchet MS, Verdana, Tahoma, Arial]September 22 2000, 9:16 PM [/FONT]</TD></TR></TBODY></TABLE><TABLE cellSpacing=0 cellPadding=1 width="100%" border=0><TBODY><TR><TD style="PADDING-LEFT: 30px">
[FONT=Trebuchet MS, Verdana, Tahoma, Arial]<!-- google_ad_section_start -->Checked out your site below, are those NJ plates on your X?? If so, I'm in northern NJ (Morris Co.)and there is a U-Pullit yard across the highway from my workplace with several Yugos, some fairly recent arrivals. I also know of a yard in the Pine Barrens with a couple of X's. Email me if I can be of any help in the alternator search..
Good luck, John
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[/FONT]</TD></TR></TBODY></TABLE><TABLE cellSpacing=0 cellPadding=4 width="100%" border=0><TBODY><TR><TD vAlign=top align=left>[FONT=Trebuchet MS, Verdana, Tahoma, Arial] [/FONT]</TD><TD vAlign=top noWrap align=right>[FONT=Trebuchet MS, Verdana, Tahoma, Arial]
[FONT=Trebuchet MS, Verdana, Tahoma, Arial][/FONT]</TD><TD style="PADDING-LEFT: 15px" vAlign=top><TABLE cellSpacing=0 cellPadding=1 width="100%" border=0><TBODY><TR><TD align=left>[FONT=Trebuchet MS, Verdana, Tahoma, Arial]<!-- google_ad_section_start -->DIY regulator<!-- google_ad_section_end -->
[/FONT][FONT=Trebuchet MS, Verdana, Tahoma, Arial][/FONT]</TD><TD vAlign=top align=right>[FONT=Trebuchet MS, Verdana, Tahoma, Arial]September 20 2000, 9:49 AM [/FONT]</TD></TR></TBODY></TABLE><TABLE cellSpacing=0 cellPadding=1 width="100%" border=0><TBODY><TR><TD style="PADDING-LEFT: 15px">
[FONT=Trebuchet MS, Verdana, Tahoma, Arial]<!-- google_ad_section_start -->Bob,
it sounds like you enjoy this kind of stuff, but what I would do is return the alternator to Pep Boys since it isn't the right one. Then buy the right one from a Fiat parts vendor or have your old one rebuilt.
Also, IAP sells solid state regulators for Marelli alternators and also for the early Bosch units (not in their catalog).
Ulix ('74 Bosch mini-alternator)<!-- google_ad_section_end -->
[/FONT]</TD></TR></TBODY></TABLE><TABLE cellSpacing=0 cellPadding=4 width="100%" border=0><TBODY><TR><TD vAlign=top align=left>[FONT=Trebuchet MS, Verdana, Tahoma, Arial] [/FONT]</TD><TD vAlign=top noWrap align=right>[FONT=Trebuchet MS, Verdana, Tahoma, Arial]
[FONT=Trebuchet MS, Verdana, Tahoma, Arial][/FONT]</TD><TD style="PADDING-LEFT: 30px" vAlign=top><TABLE cellSpacing=0 cellPadding=1 width="100%" border=0><TBODY><TR><TD align=left>[FONT=Trebuchet MS, Verdana, Tahoma, Arial]<!-- google_ad_section_start -->re:diy regulator<!-- google_ad_section_end -->
[/FONT][FONT=Trebuchet MS, Verdana, Tahoma, Arial][/FONT]</TD><TD vAlign=top align=right>[FONT=Trebuchet MS, Verdana, Tahoma, Arial]September 22 2000, 9:15 AM [/FONT]</TD></TR></TBODY></TABLE><TABLE cellSpacing=0 cellPadding=1 width="100%" border=0><TBODY><TR><TD style="PADDING-LEFT: 30px">
[FONT=Trebuchet MS, Verdana, Tahoma, Arial]<!-- google_ad_section_start -->ulix hit the nail on the head:
i DO enjoy this kind of stuff.
..what is that saying about needing a ladder
so i built a ferris-wheel...
i most certainly intend to bring the alternator back. i was just looking for a way to drive the car until i get the proper unit.
i spent some time trying to find a late-model
bosch. and i even ordered one from (i won't
say who), but they sent me an A/C version,
without a pulley. on all counts, no good for me.
the pep-boys option was to be a quick-fix.
the problem was that i didn't know what
i had got. it was shorter than the stock unit,
and looked more like a early-spider alternator
than an x1/9 version.
the "third" electrical connection is apparently
NOT a D+ connection. it looks like it is a "relay-control" output for the charge-light.
(i know older spiders used this type of circuit,
but i didn't know X1/9's did. maybe '74???)
so i wound up pulling an old mechanical voltage regulator from a "sleeping" spider.
this type takes B+ from the ignition switch.
since i've been striving to reduce the current
thru my ignition switch, i had to rig up an "ignition" source via a relay.
it worked, but not very well.
the voltage ran fairly high, and the battery was definitely overcharged after a week of
highway driving like this.
i built one circuit which performed the same
(simplistic) switching function in the mechanical
regulator, but gave me the option to tweak
the voltage thresholds.
and another that did a more advanced PWM control.
but the system is still flaky.
at night i noticed arcing-sparking inside the alternator. this occurs with all three voltage regulators, and even with the field winding disconnected...
this *can't* be normal.
the belt (bearing?) squeal also stops when field or B+ wired are disconnected.
the quest for the regulator schematic is one of curiosity, at this point.
and, barring a bum alternator to begin with,
i feel like i should be able to make-this-work, after the time i've already invested...
once i've picked up the gauntlet, it's tough to toss it aside...
bob.d.
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[FONT=Trebuchet MS, Verdana, Tahoma, Arial][/FONT]</TD><TD style="PADDING-LEFT: 45px" vAlign=top><TABLE cellSpacing=0 cellPadding=1 width="100%" border=0><TBODY><TR><TD align=left>[FONT=Trebuchet MS, Verdana, Tahoma, Arial]<!-- google_ad_section_start -->A/C Bosch<!-- google_ad_section_end -->
[/FONT][FONT=Trebuchet MS, Verdana, Tahoma, Arial][/FONT]</TD><TD vAlign=top align=right>[FONT=Trebuchet MS, Verdana, Tahoma, Arial]September 22 2000, 9:44 AM [/FONT]</TD></TR></TBODY></TABLE><TABLE cellSpacing=0 cellPadding=1 width="100%" border=0><TBODY><TR><TD style="PADDING-LEFT: 45px">
[FONT=Trebuchet MS, Verdana, Tahoma, Arial]<!-- google_ad_section_start -->Bob,
isn't an A/C alternator just one with higher output? Wouldn't that be just the ticket with your tube amp?
The '74 alternator is very different, it is not much bigger than a Coke can
It does have a single connection that is not used. That's all I know.
Ulix<!-- google_ad_section_end -->
[/FONT]</TD></TR></TBODY></TABLE><TABLE cellSpacing=0 cellPadding=4 width="100%" border=0><TBODY><TR><TD vAlign=top align=left>[FONT=Trebuchet MS, Verdana, Tahoma, Arial] [/FONT]</TD><TD vAlign=top noWrap align=right>[FONT=Trebuchet MS, Verdana, Tahoma, Arial]
[FONT=Trebuchet MS, Verdana, Tahoma, Arial][/FONT]</TD><TD style="PADDING-LEFT: 45px" vAlign=top><TABLE cellSpacing=0 cellPadding=1 width="100%" border=0><TBODY><TR><TD align=left>[FONT=Trebuchet MS, Verdana, Tahoma, Arial]<!-- google_ad_section_start -->Alts. & regs.<!-- google_ad_section_end -->
[/FONT][FONT=Trebuchet MS, Verdana, Tahoma, Arial][/FONT]</TD><TD vAlign=top align=right>[FONT=Trebuchet MS, Verdana, Tahoma, Arial]September 22 2000, 10:55 AM [/FONT]</TD></TR></TBODY></TABLE><TABLE cellSpacing=0 cellPadding=1 width="100%" border=0><TBODY><TR><TD style="PADDING-LEFT: 45px">
[FONT=Trebuchet MS, Verdana, Tahoma, Arial]<!-- google_ad_section_start -->The mechanical regulator can be physically adjusted to control the cutoff just by bending the tab the points are on, and the points occasionally have to be sanded to keep it from sticking. This may help the overcharging on your temp. setup.
The arcing inside the alternator makes it sound like it needs to have new brushes and the armature turned. Is this in the new one? If you are in the Seattle/Bellevue area, I can recommend a good rebuilding place, where they actually don't run when they see me (Hey it's the Fiat guy!) coming!<!-- google_ad_section_end -->
[/FONT]</TD></TR></TBODY></TABLE><TABLE cellSpacing=0 cellPadding=4 width="100%" border=0><TBODY><TR><TD vAlign=top align=left>[FONT=Trebuchet MS, Verdana, Tahoma, Arial] [/FONT]</TD><TD vAlign=top noWrap align=right>[FONT=Trebuchet MS, Verdana, Tahoma, Arial]
[FONT=Trebuchet MS, Verdana, Tahoma, Arial][/FONT]</TD><TD style="PADDING-LEFT: 60px" vAlign=top><TABLE cellSpacing=0 cellPadding=1 width="100%" border=0><TBODY><TR><TD align=left>[FONT=Trebuchet MS, Verdana, Tahoma, Arial]<!-- google_ad_section_start -->thanks for the tip...<!-- google_ad_section_end -->
[/FONT][FONT=Trebuchet MS, Verdana, Tahoma, Arial][/FONT]</TD><TD vAlign=top align=right>[FONT=Trebuchet MS, Verdana, Tahoma, Arial]September 22 2000, 11:56 AM [/FONT]</TD></TR></TBODY></TABLE><TABLE cellSpacing=0 cellPadding=1 width="100%" border=0><TBODY><TR><TD style="PADDING-LEFT: 60px">
[FONT=Trebuchet MS, Verdana, Tahoma, Arial]<!-- google_ad_section_start -->hi greg,
thanks for the tip.
i achieved the same result by installing
the homebrew electronic version.
i can adjust the voltage threshold between
13 and 14.5V.
i also had to play with series resistances
to keep the field currents down
(otherwise it would squeal).
this was a rebuilt unit.
i put less than 300mi on it...
it may have been arcing from day one...
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