REFLECTOR:Alternator

Ronnie Brown reflector@tvbf.org
Tue, 9 Sep 2003 08:29:58 -0400


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My IO 360's alternator is a Hitachi supposedly from a 1981-1987 Mazda.  =
It has an external regulator - I have a solid state VR600.  Right now it =
is down due to a broken wire in the field to slip ring connection.  I am =
going to try to repair it and replace the brushes which are supposed to =
arrive on Thursday.  This alternator came with the Don George engine.

I see no reason why you couldn't use a built in regulator - as Keith =
states most autos now use built in regulators - it certainly improves =
your chances of finding a match from a more common automobile.   But you =
will have to find a bracket to match the Lycoming alternator mounting =
boss.  I'd favor the $200 kit from Velocity, it should also include the =
mounting boss and adjusting bracket.

Bob Nuckols favors the external regulator and the overvoltage protection =
scheme he designed.  The advantage is that IF there was a voltage run =
away, it would minimize the damage to the high dollar avionics in your =
panel.

Ronnie =20
  ----- Original Message -----=20
  From: KeithHallsten=20
  To: reflector@tvbf.org=20
  Sent: Tuesday, September 09, 2003 2:33 AM
  Subject: Re: REFLECTOR:Alternator


  Mel,

  Any "aircraft" alternator will not have an internal regulator, but =
just about every "automobile" alternator will incorporate a regulator.  =
I'm going with the B&C alternators myself, which are nothing more than =
Nippon Denso auto alternators which have been precision balanced and had =
the built-in regulator removed.  Yes, it's a lot of money, but it's hard =
to argue with their record of success!

  Keith

    ----- Original Message -----=20
    From: PUSHERPILOT@wmconnect.com=20
    To: reflector@awpi.com=20
    Sent: Monday, September 08, 2003 10:16 PM
    Subject: REFLECTOR:Alternator


    I purchased a B&C voltage regulator several years ago and intended =
to also buy their alternator.  Now I find that I no longer think that =
they are worth $600 to $700.  Velocity has a 60 amp for about $200 but =
it has the voltage regulator built in and I hear that it's a major =
effort to disable it.  Does anyone know of an alternator without a =
regulator that will fit my LYC IO360?  Also, what's the difference =
between a case mount and a boss mount?=20

    99.9% finished and taking for ever!!=20

    Mel Bina  STD  RG=20

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<DIV><FONT size=3D2>My IO 360's alternator is a Hitachi supposedly from =
a=20
1981-1987 Mazda.&nbsp; It has an external regulator - I have a solid =
state=20
VR600.&nbsp; Right now it is down due to a broken wire in the field to =
slip ring=20
connection.&nbsp; I am going to try to repair it and replace the brushes =
which=20
are supposed to arrive on Thursday.&nbsp; This alternator came with the =
Don=20
George engine.</FONT></DIV>
<DIV><FONT size=3D2></FONT><FONT size=3D2></FONT>&nbsp;</DIV>
<DIV><FONT size=3D2>I see no reason why you couldn't use a built in =
regulator - as=20
Keith states most&nbsp;autos now use built in regulators -&nbsp;it =
certainly=20
improves your chances of finding a match from a more common=20
automobile.&nbsp;&nbsp; But you will have to find a bracket to match=20
the&nbsp;Lycoming alternator mounting boss.&nbsp; I'd favor the $200 kit =
from=20
Velocity, it should also include the mounting boss and adjusting=20
bracket.</FONT></DIV>
<DIV><FONT size=3D2></FONT>&nbsp;</DIV>
<DIV><FONT size=3D2>Bob Nuckols favors the external regulator and the =
overvoltage=20
protection scheme he designed.&nbsp; The advantage is that&nbsp;IF there =
was a=20
voltage run away, it would minimize the damage to the high dollar =
avionics in=20
your panel.</FONT></DIV>
<DIV><FONT size=3D2></FONT>&nbsp;</DIV>
<DIV><FONT size=3D2>Ronnie&nbsp; </FONT></DIV>
<BLOCKQUOTE dir=3Dltr=20
style=3D"PADDING-RIGHT: 0px; PADDING-LEFT: 5px; MARGIN-LEFT: 5px; =
BORDER-LEFT: #000000 2px solid; MARGIN-RIGHT: 0px">
  <DIV style=3D"FONT: 10pt arial">----- Original Message ----- </DIV>
  <DIV=20
  style=3D"BACKGROUND: #e4e4e4; FONT: 10pt arial; font-color: =
black"><B>From:</B>=20
  <A title=3DKeithHallsten@quiknet.com=20
  href=3D"mailto:KeithHallsten@quiknet.com">KeithHallsten</A> </DIV>
  <DIV style=3D"FONT: 10pt arial"><B>To:</B> <A =
title=3Dreflector@tvbf.org=20
  href=3D"mailto:reflector@tvbf.org">reflector@tvbf.org</A> </DIV>
  <DIV style=3D"FONT: 10pt arial"><B>Sent:</B> Tuesday, September 09, =
2003 2:33=20
  AM</DIV>
  <DIV style=3D"FONT: 10pt arial"><B>Subject:</B> Re: =
REFLECTOR:Alternator</DIV>
  <DIV><FONT size=3D2></FONT><FONT size=3D2></FONT><BR></DIV>
  <DIV><FONT face=3DArial size=3D2>Mel,</FONT></DIV>
  <DIV><FONT face=3DArial size=3D2></FONT>&nbsp;</DIV>
  <DIV><FONT face=3DArial size=3D2>Any "aircraft" alternator will not =
have an=20
  internal regulator, but just about every "automobile" alternator will=20
  incorporate a regulator.&nbsp; I'm going with the B&amp;C alternators =
myself,=20
  which are nothing more than Nippon Denso auto alternators which have =
been=20
  precision balanced and had the built-in regulator removed.&nbsp; Yes, =
it's a=20
  lot of money, but it's hard to argue with their record of=20
success!</FONT></DIV>
  <DIV><FONT size=3D2></FONT>&nbsp;</DIV>
  <DIV><FONT face=3DArial size=3D2>Keith</FONT></DIV>
  <DIV><FONT size=3D2></FONT>&nbsp;</DIV>
  <BLOCKQUOTE=20
  style=3D"PADDING-RIGHT: 0px; PADDING-LEFT: 5px; MARGIN-LEFT: 5px; =
BORDER-LEFT: #000000 2px solid; MARGIN-RIGHT: 0px">
    <DIV style=3D"FONT: 10pt arial">----- Original Message ----- </DIV>
    <DIV=20
    style=3D"BACKGROUND: #e4e4e4; FONT: 10pt arial; font-color: =
black"><B>From:</B>=20
    <A title=3DPUSHERPILOT@wmconnect.com=20
    =
href=3D"mailto:PUSHERPILOT@wmconnect.com">PUSHERPILOT@wmconnect.com</A> =
</DIV>
    <DIV style=3D"FONT: 10pt arial"><B>To:</B> <A =
title=3Dreflector@awpi.com=20
    href=3D"mailto:reflector@awpi.com">reflector@awpi.com</A> </DIV>
    <DIV style=3D"FONT: 10pt arial"><B>Sent:</B> Monday, September 08, =
2003 10:16=20
    PM</DIV>
    <DIV style=3D"FONT: 10pt arial"><B>Subject:</B> =
REFLECTOR:Alternator</DIV>
    <DIV><FONT size=3D2></FONT><BR></DIV><FONT =
face=3Darial,helvetica><FONT size=3D2>I=20
    purchased a B&amp;C voltage regulator several years ago and intended =
to also=20
    buy their alternator. &nbsp;Now I find that I no longer think that =
they are=20
    worth $600 to $700. &nbsp;Velocity has a 60 amp for about $200 but =
it has=20
    the voltage regulator built in and I hear that it's a major effort =
to=20
    disable it. &nbsp;Does anyone know of an alternator without a =
regulator that=20
    will fit my LYC IO360? &nbsp;Also, what's the difference between a =
case=20
    mount and a boss mount? <BR><BR>99.9% finished and taking for ever!! =

    <BR><BR>Mel Bina &nbsp;STD &nbsp;RG</FONT>=20
</FONT></BLOCKQUOTE></BLOCKQUOTE></BODY></HTML>

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