Subject: Re: [Spridgets] How can you kill an alternator

From: Larry Macy via Spridgets <[email-masked]>
Date: Mon, 2 Feb 2015 11:39:50 -0500

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So how come my waring light comes on when at low RPM=E2=80=99s and I =
have a GM alternator?

Larry

> On Feb 2, 2015, at 11:17 AM, tncarnut1 via Spridgets =
<[email-masked]> wrote:
>=20
> If you're thinking that the output of an alternator varies with RPM, =
you are mistaken. That is the functional difference between an =
alternator and a generator. Generator output varies with RPM (why lights =
can go dimmer at idle on some cars), alternator does not. If I =
misunderstood your question, sorry.
>=20
>  - David
>=20
>=20
> Sent via the Samsung GALAXY S=C2=AE 5, an AT&T 4G LTE smartphone
>=20
>=20
> -------- Original message --------
> From: Trevor Jessie via Spridgets <[email-masked]>
> Date:02/02/2015 5:41 AM (GMT-06:00)
> To: Spridgets <[email-masked]>
> Cc:
> Subject: [Spridgets] How can you kill an alternator
>=20
> My real question is this :  assuming the bearings do not fail, how =
fast can you turn an alternator before it toasts something electronic?   =
Is there a huge margin, or are they engineered near their limited rpm?
>=20
> -Trevor
>=20
> ------------------------
>=20
> [email-masked]
>=20
> Donate: http://www.team.net/donate.html
> Suggested annual donation: $12.75
>=20
> Archive: http://www.team.net/archive
> Forums: http://www.team.net/forums
> Unsubscribe/Manage: =
http://autox.team.net/mailman/options/spridgets/[email-masked]

--

Larry B. Macy, Ph.D.
[email-masked]
Senior IT Program Director
Neuropsychiatry Section
Department of Psychiatry
University of Pennsylvania
3400 Spruce St. - 1015 Gates
Philadelphia, PA 19104

The bottom line: Sure, there's pain in adopting the Mac. But if I accept
that, I get to use a computer that works, and that pretty much does what =
I
expect and want a computer to do.
Stewart Alsop
FORTUNE.com
Monday, June 25, 2001

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------------------------

[email-masked]

Archive: http://www.team.net/archive

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---

From: Rick Fisk via Spridgets <[email-masked]>
Date: Mon, 2 Feb 2015 12:05:49 -0500

Alternators have to turn about 3000 rpm before they start to really produce.  The typical automotive alternator turns three times faster than the engine.  If your engine is idling at 700 rpm it's below the point where the alternator makes current and your warning light comes on.  

If your engine turns 6 grand the alternator is turning 18,000 rpm's!  So Trevor, I think the answer to your question is that the bearings will fail before the electronics.  The output of an alternator is a straight line once it gets up to speed and stays there throughout the rpm range. 

Sent from my keyboard

> On Feb 2, 2015, at 11:39 AM, Larry Macy via Spridgets <[email-masked]> wrote:
> 
> So how come my waring light comes on when at low RPM’s and I have a GM alternator?
> 
> Larry
> 
>> On Feb 2, 2015, at 11:17 AM, tncarnut1 via Spridgets <[email-masked]> wrote:
>> 
>> If you're thinking that the output of an alternator varies with RPM, you are mistaken. That is the functional difference between an alternator and a generator. Generator output varies with RPM (why lights can go dimmer at idle on some cars), alternator does not. If I misunderstood your question, sorry.
>> 
>> - David
>> 
>> 
>> Sent via the Samsung GALAXY S® 5, an AT&T 4G LTE smartphone
>> 
>> 
>> My real question is this :  assuming the bearings do not fail, how fast can you turn an alternator before it toasts something electronic?   Is there a huge margin, or are they engineered near their limited rpm?
>> 
>> -Trevor
>> 
>> ------------------------
>> 
>> [email-masked]
>> 
>> Unsubscribe/Manage: http://autox.team.net/mailman/options/spridgets/[email-masked]
> 
> --
> 
> Larry B. Macy, Ph.D.
> [email-masked]
> that, I get to use a computer that works, and that pretty much does what I
> Unsubscribe/Manage: http://autox.team.net/mailman/options/spridgets/[email-masked]
------------------------

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Forums: http://www.team.net/forums
Unsubscribe/Manage: http://autox.team.net/mailman/options/spridgets/[email-masked]

---

From: Trevor Jessie via Spridgets <[email-masked]>
Date: Mon, 2 Feb 2015 12:34:10 -0500

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I'm just trying to rule out possibilities on how I'm killing so many
alternators.  They fail slowly.  Gradually requiring more and more rpms
before they start charging and eventually they quit charging regardless on
rpms.  I'm on my fourth "rebuilt" Lucas unit from a major chain autoparts
store.

On Mon, Feb 2, 2015 at 12:05 PM, Rick Fisk via Spridgets <
[email-masked]> wrote:

> Alternators have to turn about 3000 rpm before they start to really
> produce.  The typical automotive alternator turns three times faster than
> the engine.  If your engine is idling at 700 rpm it's below the point whe=
re
> the alternator makes current and your warning light comes on.
>
> If your engine turns 6 grand the alternator is turning 18,000 rpm's!  So
> Trevor, I think the answer to your question is that the bearings will fai=
l
> before the electronics.  The output of an alternator is a straight line
> once it gets up to speed and stays there throughout the rpm range.
>
> Sent from my keyboard
>
> > So how come my waring light comes on when at low RPM=E2=80=99s and I ha=
ve a GM
> alternator?
> >> If you're thinking that the output of an alternator varies with RPM,
> you are mistaken. That is the functional difference between an alternator
> and a generator. Generator output varies with RPM (why lights can go dimm=
er
> at idle on some cars), alternator does not. If I misunderstood your
> question, sorry.
> >>
> >> - David
> >>
> >>
> >> My real question is this :  assuming the bearings do not fail, how fas=
t
> can you turn an alternator before it toasts something electronic?   Is
> there a huge margin, or are they engineered near their limited rpm?
> >>
> >> -Trevor
> >>
> >> ------------------------
> >>
> >> [email-masked]
> >>
> >> Unsubscribe/Manage:
> > The bottom line: Sure, there's pain in adopting the Mac. But if I accep=
t
> > that, I get to use a computer that works, and that pretty much does wha=
t
> > Unsubscribe/Manage:
> http://autox.team.net/mailman/options/spridgets/[email-masked]
> ------------------------
>
> [email-masked]
>
> Unsubscribe/Manage:
> http://autox.team.net/mailman/options/spridgets/[email-masked]
>

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<div dir=3D"ltr">I&#39;m just trying to rule out possibilities on how I&#39=
;m killing so many alternators.=C2=A0 They fail slowly.=C2=A0 Gradually req=
uiring more and more rpms before they start charging and eventually they qu=
it charging regardless on rpms.=C2=A0 I&#39;m on my fourth &quot;rebuilt&qu=
ot; Lucas unit from a major chain autoparts store.</div><div class=3D"gmail=
_extra"><br><div class=3D"gmail_quote">On Mon, Feb 2, 2015 at 12:05 PM, Ric=
k Fisk via Spridgets <span dir=3D"ltr">&lt;<a href=3D"mailto:spridgets@auto=
x.team.net" target=3D"_blank">[email-masked]</a>&gt;</span> wrote=
:<br><blockquote class=3D"gmail_quote" style=3D"margin:0 0 0 .8ex;border-le=
ft:1px #ccc solid;padding-left:1ex">Alternators have to turn about 3000 rpm=
 before they start to really produce.=C2=A0 The typical automotive alternat=
or turns three times faster than the engine.=C2=A0 If your engine is idling=
 at 700 rpm it&#39;s below the point where the alternator makes current and=
 your warning light comes on.<br>
<br>
If your engine turns 6 grand the alternator is turning 18,000 rpm&#39;s!=C2=
=A0 So Trevor, I think the answer to your question is that the bearings wil=
l fail before the electronics.=C2=A0 The output of an alternator is a strai=
ght line once it gets up to speed and stays there throughout the rpm range.=
<br>
<br>
Sent from my keyboard<br>
<div><div class=3D"h5"><br>
&gt; On Feb 2, 2015, at 11:39 AM, Larry Macy via Spridgets &lt;<a href=3D"m=
ailto:[email-masked]">[email-masked]</a>&gt; wrote:<br>
&gt;<br>
&gt; So how come my waring light comes on when at low RPM=E2=80=99s and I h=
ave a GM alternator?<br>
&gt;<br>
&gt; Larry<br>
&gt;<br>
&gt;&gt; On Feb 2, 2015, at 11:17 AM, tncarnut1 via Spridgets &lt;<a href=
=3D"mailto:[email-masked]">[email-masked]</a>&gt; wrote=
:<br>
&gt;&gt;<br>
&gt;&gt; If you&#39;re thinking that the output of an alternator varies wit=
h RPM, you are mistaken. That is the functional difference between an alter=
nator and a generator. Generator output varies with RPM (why lights can go =
dimmer at idle on some cars), alternator does not. If I misunderstood your =
question, sorry.<br>
&gt;&gt;<br>
&gt;&gt; - David<br>
&gt;&gt;<br>
&gt;&gt;<br>
&gt;&gt; Sent via the Samsung GALAXY S=C2=AE 5, an AT&amp;T 4G LTE smartpho=
ne<br>
&gt;&gt;<br>
&gt;&gt;<br>
&gt;&gt; -------- Original message --------<br>
&gt;&gt; From: Trevor Jessie via Spridgets &lt;<a href=3D"mailto:spridgets@=
autox.team.net">[email-masked]</a>&gt;<br>
&gt;&gt; Date:02/02/2015 5:41 AM (GMT-06:00)<br>
&gt;&gt; To: Spridgets &lt;<a href=3D"mailto:[email-masked]">spri=
[email-masked]</a>&gt;<br>
&gt;&gt; Cc:<br>
&gt;&gt; Subject: [Spridgets] How can you kill an alternator<br>
&gt;&gt;<br>
&gt;&gt; My real question is this :=C2=A0 assuming the bearings do not fail=
, how fast can you turn an alternator before it toasts something electronic=
?=C2=A0 =C2=A0Is there a huge margin, or are they engineered near their lim=
ited rpm?<br>
&gt;&gt;<br>
&gt;&gt; -Trevor<br>
&gt;&gt;<br>
&gt;&gt; ------------------------<br>
&gt;&gt;<br>
&gt;&gt; <a href=3D"mailto:[email-masked]">[email-masked]=
et</a><br>
&gt;&gt;<br>
&gt;&gt; Donate: <a href=3D"http://www.team.net/donate.html" target=3D"_bla=
nk">http://www.team.net/donate.html</a><br>
&gt;&gt; Suggested annual donation: $12.75<br>
&gt;&gt;<br>
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>http://www.team.net/archive</a><br>
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&gt;<br>
&gt; --<br>
&gt;<br>
&gt; Larry B. Macy, Ph.D.<br>
&gt; <a href=3D"mailto:[email-masked]">[email-masked]</a><br>
&gt; Senior IT Program Director<br>
&gt; Neuropsychiatry Section<br>
&gt; Department of Psychiatry<br>
&gt; University of Pennsylvania<br>
&gt; 3400 Spruce St. - 1015 Gates<br>
&gt; Philadelphia, PA 19104<br>
&gt;<br>
&gt; The bottom line: Sure, there&#39;s pain in adopting the Mac. But if I =
accept<br>
&gt; that, I get to use a computer that works, and that pretty much does wh=
at I<br>
&gt; expect and want a computer to do.<br>
&gt; Stewart Alsop<br>
&gt; FORTUNE.com<br>
&gt; Monday, June 25, 2001<br>
&gt;<br>
&gt; ------------------------<br>
&gt;<br>
&gt; <a href=3D"mailto:[email-masked]">[email-masked]</=
a><br>
&gt;<br>
&gt; Donate: <a href=3D"http://www.team.net/donate.html" target=3D"_blank">=
&gt; Suggested annual donation: $12.75<br>
&gt;<br>
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p://www.team.net/archive</a><br>
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//www.team.net/forums</a><br>
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<span class=3D"">------------------------<br>
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</blockquote></div><br></div>

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[email-masked]

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---

From: Rick Fisk via Spridgets <[email-masked]>
Date: Mon, 2 Feb 2015 12:43:26 -0500

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Well there's your answer.   I had to go through three alternators from AutoZ=
one before I got one that would last more than a year.   I think their "rebu=
ilding" process is not much more than clean and polish.  :-)=20

Sent from my keyboard

> On Feb 2, 2015, at 12:34 PM, Trevor Jessie <[email-masked]> wrote=
:
>=20
> I'm just trying to rule out possibilities on how I'm killing so many alter=
nators.  They fail slowly.  Gradually requiring more and more rpms before th=
ey start charging and eventually they quit charging regardless on rpms.  I'm=
 on my fourth "rebuilt" Lucas unit from a major chain autoparts store.
>=20
>> On Mon, Feb 2, 2015 at 12:05 PM, Rick Fisk via Spridgets <spridgets@autox=
.team.net> wrote:
>> Alternators have to turn about 3000 rpm before they start to really produ=
ce.  The typical automotive alternator turns three times faster than the eng=
ine.  If your engine is idling at 700 rpm it's below the point where the alt=
ernator makes current and your warning light comes on.
>>=20
>> If your engine turns 6 grand the alternator is turning 18,000 rpm's!  So T=
revor, I think the answer to your question is that the bearings will fail be=
fore the electronics.  The output of an alternator is a straight line once i=
t gets up to speed and stays there throughout the rpm range.
>>=20
>> Sent from my keyboard
>>=20
>> > On Feb 2, 2015, at 11:39 AM, Larry Macy via Spridgets <spridgets@autox.=
>> > So how come my waring light comes on when at low RPM=E2=80=99s and I ha=
ve a GM alternator?
>> >
>> > Larry
>> >
>> >> On Feb 2, 2015, at 11:17 AM, tncarnut1 via Spridgets <spridgets@autox.=
team.net> wrote:
>> >>
>> >> If you're thinking that the output of an alternator varies with RPM, y=
ou are mistaken. That is the functional difference between an alternator and=
 a generator. Generator output varies with RPM (why lights can go dimmer at i=
dle on some cars), alternator does not. If I misunderstood your question, so=
rry.
>> >> My real question is this :  assuming the bearings do not fail, how fas=
t can you turn an alternator before it toasts something electronic?   Is the=
re a huge margin, or are they engineered near their limited rpm?
>> >> Unsubscribe/Manage: http://autox.team.net/mailman/options/spridgets/lm=
[email-masked]
t
>> > that, I get to use a computer that works, and that pretty much does wha=
t I
>> > Unsubscribe/Manage: http://autox.team.net/mailman/options/spridgets/ref=
[email-masked]
>> Unsubscribe/Manage: http://autox.team.net/mailman/options/spridgets/trevo=
[email-masked]

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Content-Transfer-Encoding: quoted-printable

<html><head><meta http-equiv=3D"content-type" content=3D"text/html; charset=3D=
utf-8"></head><body dir=3D"auto"><div>Well there's your answer. &nbsp; I had=
 to go through three alternators from AutoZone before I got one that would l=
ast more than a year. &nbsp; I think their "rebuilding" process is not much m=
ore than clean and polish. &nbsp;:-)&nbsp;<br><br>Sent from my keyboard</div=
><div><br>On Feb 2, 2015, at 12:34 PM, Trevor Jessie &lt;<a href=3D"mailto:t=
[email-masked]">[email-masked]</a>&gt; wrote:<br><br></div>=
<blockquote type=3D"cite"><div><div dir=3D"ltr">I'm just trying to rule out p=
ossibilities on how I'm killing so many alternators.&nbsp; They fail slowly.=
&nbsp; Gradually requiring more and more rpms before they start charging and=
 eventually they quit charging regardless on rpms.&nbsp; I'm on my fourth "r=
ebuilt" Lucas unit from a major chain autoparts store.</div><div class=3D"gm=
ail_extra"><br><div class=3D"gmail_quote">On Mon, Feb 2, 2015 at 12:05 PM, R=
ick Fisk via Spridgets <span dir=3D"ltr">&lt;<a href=3D"mailto:spridgets@aut=
ox.team.net" target=3D"_blank">[email-masked]</a>&gt;</span> wrote=
:<br><blockquote class=3D"gmail_quote" style=3D"margin:0 0 0 .8ex;border-lef=
t:1px #ccc solid;padding-left:1ex">Alternators have to turn about 3000 rpm b=
efore they start to really produce.&nbsp; The typical automotive alternator t=
urns three times faster than the engine.&nbsp; If your engine is idling at 7=
00 rpm it's below the point where the alternator makes current and your warn=
ing light comes on.<br>
<br>
If your engine turns 6 grand the alternator is turning 18,000 rpm's!&nbsp; S=
o Trevor, I think the answer to your question is that the bearings will fail=
 before the electronics.&nbsp; The output of an alternator is a straight lin=
e once it gets up to speed and stays there throughout the rpm range.<br>
<br>
Sent from my keyboard<br>
<div><div class=3D"h5"><br>
&gt; On Feb 2, 2015, at 11:39 AM, Larry Macy via Spridgets &lt;<a href=3D"ma=
ilto:[email-masked]">[email-masked]</a>&gt; wrote:<br>
&gt;<br>
&gt; So how come my waring light comes on when at low RPM=E2=80=99s and I ha=
ve a GM alternator?<br>
&gt;<br>
&gt; Larry<br>
&gt;<br>
&gt;&gt; On Feb 2, 2015, at 11:17 AM, tncarnut1 via Spridgets &lt;<a href=3D=
"mailto:[email-masked]">[email-masked]</a>&gt; wrote:<br=
&gt;&gt;<br>
&gt;&gt; If you're thinking that the output of an alternator varies with RPM=
, you are mistaken. That is the functional difference between an alternator a=
nd a generator. Generator output varies with RPM (why lights can go dimmer a=
t idle on some cars), alternator does not. If I misunderstood your question,=
 sorry.<br>
&gt;&gt;<br>
&gt;&gt; - David<br>
&gt;&gt;<br>
&gt;&gt;<br>
&gt;&gt; Sent via the Samsung GALAXY S=C2=AE 5, an AT&amp;T 4G LTE smartphon=
e<br>
&gt;&gt;<br>
&gt;&gt;<br>
&gt;&gt; -------- Original message --------<br>
&gt;&gt; From: Trevor Jessie via Spridgets &lt;<a href=3D"mailto:spridgets@a=
utox.team.net">[email-masked]</a>&gt;<br>
&gt;&gt; Date:02/02/2015 5:41 AM (GMT-06:00)<br>
&gt;&gt; To: Spridgets &lt;<a href=3D"mailto:[email-masked]">sprid=
[email-masked]</a>&gt;<br>
&gt;&gt; Cc:<br>
&gt;&gt; Subject: [Spridgets] How can you kill an alternator<br>
&gt;&gt;<br>
&gt;&gt; My real question is this :&nbsp; assuming the bearings do not fail,=
 how fast can you turn an alternator before it toasts something electronic?&=
nbsp; &nbsp;Is there a huge margin, or are they engineered near their limite=
d rpm?<br>
&gt;&gt;<br>
&gt;&gt; -Trevor<br>
&gt;&gt;<br>
&gt;&gt; ------------------------<br>
&gt;&gt;<br>
&gt;&gt; <a href=3D"mailto:[email-masked]">[email-masked]=
t</a><br>
&gt;&gt;<br>
&gt;&gt; Donate: <a href=3D"http://www.team.net/donate.html" target=3D"_blan=
k">http://www.team.net/donate.html</a><br>
&gt;&gt; Suggested annual donation: $12.75<br>
&gt;&gt;<br>
&gt;&gt; Archive: <a href=3D"http://www.team.net/archive" target=3D"_blank">=
&gt;&gt; Forums: <a href=3D"http://www.team.net/forums" target=3D"_blank">ht=
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ptions/spridgets/[email-masked]</a><br>
&gt;<br>
&gt; --<br>
&gt;<br>
&gt; Larry B. Macy, Ph.D.<br>
&gt; <a href=3D"mailto:[email-masked]">[email-masked]</a><br>
&gt; Senior IT Program Director<br>
&gt; Neuropsychiatry Section<br>
&gt; Department of Psychiatry<br>
&gt; University of Pennsylvania<br>
&gt; 3400 Spruce St. - 1015 Gates<br>
&gt; Philadelphia, PA 19104<br>
&gt;<br>
&gt; The bottom line: Sure, there's pain in adopting the Mac. But if I accep=
t<br>
&gt; that, I get to use a computer that works, and that pretty much does wha=
t I<br>
&gt; expect and want a computer to do.<br>
&gt; Stewart Alsop<br>
&gt; <a href=3D"http://FORTUNE.com">FORTUNE.com</a><br>
&gt; Monday, June 25, 2001<br>
&gt;<br>
&gt; ------------------------<br>
&gt;<br>
&gt; <a href=3D"mailto:[email-masked]">[email-masked]</a=
><br>
&gt;<br>
&gt; Donate: <a href=3D"http://www.team.net/donate.html" target=3D"_blank">h=
ttp://www.team.net/donate.html</a><br>
&gt; Suggested annual donation: $12.75<br>
&gt;<br>
&gt; Archive: <a href=3D"http://www.team.net/archive" target=3D"_blank">http=
://www.team.net/archive</a><br>
&gt; Forums: <a href=3D"http://www.team.net/forums" target=3D"_blank">http:/=
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[email-masked]

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---

From: David Lieb via Spridgets <[email-masked]>
Date: Mon, 2 Feb 2015 11:52:29 -0600

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--001a11346e3c349371050e1e9e5c

Yes, anything acquired from AutoZone which is not an off-the-shelf
brand-name item will disappoint the heck out of you; probably sooner than
later.

Likewise,  Lucas alternators merely wait until the worst possible moment to
let you down. Put the rebuilt Lucas onto your concours Midget that sits on
a trailer and put a Mitsubishi in your driving car.
David L

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<p dir=3D"ltr">Yes, anything acquired from AutoZone which is not an off-the=
-shelf brand-name item will disappoint the heck out of you; probably sooner=
 than later. </p>
<p dir=3D"ltr">Likewise,=C2=A0 Lucas alternators merely wait until the wors=
t possible moment to let you down. Put the rebuilt Lucas onto your concours=
 Midget that sits on a trailer and put a Mitsubishi in your driving car.<br=
David L</p>

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[email-masked]

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---

From: Chris via Spridgets <[email-masked]>
Date: Mon, 2 Feb 2015 13:31:55 -0600

--===============4442082791105827910==

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I had that problem on my =9266 with the same set up and ended up with =
adding an extra diode as the current was =93dirty=94 and there was some =
interesting feedback in the circuit.  Third alternator worked great =
after that mod.

Eventually I ended up changing over to a GM 10si  single wire for other =
reasons and did not have the same problem either.

Chris

On Feb 2, 2015, at 11:34 AM, Trevor Jessie via Spridgets =
<[email-masked]> wrote:

> I'm just trying to rule out possibilities on how I'm killing so many =
alternators.  They fail slowly.  Gradually requiring more and more rpms =
before they start charging and eventually they quit charging regardless =
on rpms.  I'm on my fourth "rebuilt" Lucas unit from a major chain =
autoparts store.
>=20
> On Mon, Feb 2, 2015 at 12:05 PM, Rick Fisk via Spridgets =
<[email-masked]> wrote:
> Alternators have to turn about 3000 rpm before they start to really =
produce.  The typical automotive alternator turns three times faster =
than the engine.  If your engine is idling at 700 rpm it's below the =
point where the alternator makes current and your warning light comes =
on.
>=20
> If your engine turns 6 grand the alternator is turning 18,000 rpm's!  =
So Trevor, I think the answer to your question is that the bearings will =
fail before the electronics.  The output of an alternator is a straight =
line once it gets up to speed and stays there throughout the rpm range.
>=20
> Sent from my keyboard
>=20
> > On Feb 2, 2015, at 11:39 AM, Larry Macy via Spridgets =
<[email-masked]> wrote:
> >
> > So how come my waring light comes on when at low RPM=92s and I have =
a GM alternator?
<[email-masked]> wrote:
> >>
> >> If you're thinking that the output of an alternator varies with =
RPM, you are mistaken. That is the functional difference between an =
alternator and a generator. Generator output varies with RPM (why lights =
can go dimmer at idle on some cars), alternator does not. If I =
misunderstood your question, sorry.
> >>
> >> - David
> >>
> >>
> >> Sent via the Samsung GALAXY S=AE 5, an AT&T 4G LTE smartphone
> >>
> >>
> > The bottom line: Sure, there's pain in adopting the Mac. But if I =
accept
> > that, I get to use a computer that works, and that pretty much does =
what I
http://autox.team.net/mailman/options/spridgets/[email-masked]

--Apple-Mail=_B6BCAEC8-7F26-4F19-86AA-AE11B2B19E16
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<html><head><meta http-equiv=3D"Content-Type" content=3D"text/html =
charset=3Dwindows-1252"></head><body style=3D"word-wrap: break-word; =
-webkit-nbsp-mode: space; -webkit-line-break: after-white-space;">I had =
that problem on my =9266 with the same set up and ended up with adding =
an extra diode as the current was =93dirty=94 and there was some =
interesting feedback in the circuit. &nbsp;Third alternator worked great =
after that mod.<div><br></div><div>Eventually I ended up changing over =
to a GM 10si &nbsp;single wire for other reasons and did not have the =
same problem =
either.</div><div><br></div><div>Chris</div><div><br></div><div><br></div>=
<div><br></div><div><br></div><div><div><div><div>On Feb 2, 2015, at =
11:34 AM, Trevor Jessie via Spridgets &lt;<a =
href=3D"mailto:[email-masked]">[email-masked]</a>&gt; =
wrote:</div><br class=3D"Apple-interchange-newline"><blockquote =
type=3D"cite"><div dir=3D"ltr">I'm just trying to rule out possibilities =
on how I'm killing so many alternators.&nbsp; They fail slowly.&nbsp; =
Gradually requiring more and more rpms before they start charging and =
eventually they quit charging regardless on rpms.&nbsp; I'm on my fourth =
"rebuilt" Lucas unit from a major chain autoparts store.</div><div =
class=3D"gmail_extra"><br><div class=3D"gmail_quote">On Mon, Feb 2, 2015 =
at 12:05 PM, Rick Fisk via Spridgets <span dir=3D"ltr">&lt;<a =
href=3D"mailto:[email-masked]" =
target=3D"_blank">[email-masked]</a>&gt;</span> =
wrote:<br><blockquote class=3D"gmail_quote" style=3D"margin:0 0 0 =
.8ex;border-left:1px #ccc solid;padding-left:1ex">Alternators have to =
turn about 3000 rpm before they start to really produce.&nbsp; The =
typical automotive alternator turns three times faster than the =
engine.&nbsp; If your engine is idling at 700 rpm it's below the point =
where the alternator makes current and your warning light comes on.<br>
<br>
If your engine turns 6 grand the alternator is turning 18,000 =
rpm's!&nbsp; So Trevor, I think the answer to your question is that the =
bearings will fail before the electronics.&nbsp; The output of an =
alternator is a straight line once it gets up to speed and stays there =
throughout the rpm range.<br>
<br>
Sent from my keyboard<br>
<div><div class=3D"h5"><br>
&gt; On Feb 2, 2015, at 11:39 AM, Larry Macy via Spridgets &lt;<a =
href=3D"mailto:[email-masked]">[email-masked]</a>&gt; =
wrote:<br>
&gt;<br>
&gt; So how come my waring light comes on when at low RPM=92s and I have =
a GM alternator?<br>
&gt;<br>
&gt; Larry<br>
&gt;<br>
&gt;&gt; On Feb 2, 2015, at 11:17 AM, tncarnut1 via Spridgets &lt;<a =
href=3D"mailto:[email-masked]">[email-masked]</a>&gt; =
wrote:<br>
&gt;&gt;<br>
&gt;&gt; If you're thinking that the output of an alternator varies with =
RPM, you are mistaken. That is the functional difference between an =
alternator and a generator. Generator output varies with RPM (why lights =
can go dimmer at idle on some cars), alternator does not. If I =
misunderstood your question, sorry.<br>
&gt;&gt;<br>
&gt;&gt; - David<br>
&gt;&gt;<br>
&gt;&gt;<br>
&gt;&gt; Sent via the Samsung GALAXY S=AE 5, an AT&amp;T 4G LTE =
smartphone<br>
&gt;&gt;<br>
&gt;&gt;<br>
&gt;&gt; -------- Original message --------<br>
&gt;&gt; From: Trevor Jessie via Spridgets &lt;<a =
href=3D"mailto:[email-masked]">[email-masked]</a>&gt;<=
br>
&gt;&gt; Date:02/02/2015 5:41 AM (GMT-06:00)<br>
&gt;&gt; To: Spridgets &lt;<a =
href=3D"mailto:[email-masked]">[email-masked]</a>&gt;<=
br>
&gt;&gt; Cc:<br>
&gt;&gt; Subject: [Spridgets] How can you kill an alternator<br>
&gt;&gt;<br>
&gt;&gt; My real question is this :&nbsp; assuming the bearings do not =
fail, how fast can you turn an alternator before it toasts something =
electronic?&nbsp; &nbsp;Is there a huge margin, or are they engineered =
near their limited rpm?<br>
&gt;&gt;<br>
&gt;&gt; -Trevor<br>
&gt;&gt;<br>
&gt;&gt; ------------------------<br>
&gt;&gt;<br>
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href=3D"mailto:[email-masked]">[email-masked]</a><br>
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&gt;<br>
&gt; --<br>
&gt;<br>
&gt; Larry B. Macy, Ph.D.<br>
&gt; <a href=3D"mailto:[email-masked]">[email-masked]</a><br>
&gt; Senior IT Program Director<br>
&gt; Neuropsychiatry Section<br>
&gt; Department of Psychiatry<br>
&gt; University of Pennsylvania<br>
&gt; 3400 Spruce St. - 1015 Gates<br>
&gt; Philadelphia, PA 19104<br>
&gt;<br>
&gt; The bottom line: Sure, there's pain in adopting the Mac. But if I =
accept<br>
&gt; that, I get to use a computer that works, and that pretty much does =
what I<br>
&gt; expect and want a computer to do.<br>
&gt; Stewart Alsop<br>
&gt; <a href=3D"http://FORTUNE.com">FORTUNE.com</a><br>
&gt; Monday, June 25, 2001<br>
&gt;<br>
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