[Tigers] Tigers Digest, Vol 10, Issue 163

Clyde Mclaughlin clydemclaughlin at verizon.net
Tue Jul 24 08:31:04 MDT 2018 

The way to confirm this problem is a voltage drop test on the ground circuits, a pull on a wire is no reAl test..burnt or melted grounds is caused from high resistance somewhere, voltAge drop test of circuits will find the problem

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On Monday, July 23, 2018 tigers-request <tigers-request at autox.team.net> wrote:
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Today's Topics:

1. Re: Electrical short during start attempt (Jim Buster)
2. Re: Electrical short during start attempt (Brian Glenn)
3. Re: Electrical short during start attempt (Gary)


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

Message: 1
Date: Mon, 23 Jul 2018 15:12:22 -0700
From: Jim Buster <jbsyv at yahoo.com>
To: "tigers at autox.team.net" <tigers at autox.team.net>
Subject: Re: [Tigers] Electrical short during start attempt
Message-ID: <A7BD7136-C361-4B5C-AEC7-4968E7C275A5 at yahoo.com>
Content-Type: text/plain;	charset=utf-8

You had mentioned that you have a one-wire alt. Did you replace the original wire or use the old one when you made the switch to one wire. If so, how big is the wire that cooked. Should be at least 10 ga. 

> On Jul 23, 2018, at 10:36 AM, Gary Winblad via Tigers <tigers at autox.team.net> wrote:
> 
> Humm.. strange then.
> Could the burned black wire have been burned previously?
> Gary
> 
> On 7/23/2018 7:49 AM, Gharlowe wrote:
>> Thanks, Gary. I?ll check again, but the ground strap was bolted tightly at both ends and wasn?t broken. I gave it a good tug.
>> 
>> Sent from my iPhone
>> 
>>> On Jul 23, 2018, at 10:02 AM, Gary Winblad <garywinblad at comcast.net> wrote:
>>> 
>>> Graham,
>>> The loose ground in the trunk WILL prevent it from starting.
>>> BUT your problem is the ground strap on the engine.
>>> Make sure it connects from the engine to the chassis (the old Alpine tranny mount threaded hole).
>>> It must be loose or connected wrong to burn the small black wire.
>>> It is straightforward, really only as complicated as a flashlight ;-)
>>> Gary
>>> 
>>> 
>>>> On 7/22/2018 11:03 AM, Graham Harlowe via Tigers wrote:
>>>> 
>>>> Thank you all for the replies. (I knew I should have paid more attention
>>>> during those EE classes!) The starter circuit seems pretty straight
>>>> forward: heavy gauge positive cable from the battery to the starter
>>>> solenoid and then to the starter/engine block. The circuit is closed via
>>>> the ground strap from the engine block to the chassis at the clutch slave
>>>> cylinder and then from the chassis to the battery negative terminal via the
>>>> short cable at the trunk bulkhead.
>>>> 
>>>> The "two" ground wires that fried are actually two ends of the same wire.
>>>> The wire enters the harness from the ballast resistor (chassis mount), does
>>>> a 180 inside the harness, and exits the loom with the sending unit wire
>>>> (block mount). As others have said, when the heavy gauge starter circuit is
>>>> open, the power seeks another ground path and the light gauge ground wire
>>>> between chassis and block couldn't carry the load.
>>>> 
>>>> I found the ground strap at the slave cylinder was intact with good
>>>> connections. I'll remove and clean up the contacts to be sure. The battery
>>>> cable at the trunk bulkhead wasn't tight. I'll tighten that connection and
>>>> hope that was the primary problem.
>>>> 
>>>> Let me know if there are any other places to look or items to check.
>>>> 
>>>> Thanks again,
>>>> 
>>>> - Graham
>>>> 
>>>> 
>>>> 
>>>> ---
>>>> This email has been checked for viruses by Avast antivirus software.
>>>> https://www.avast.com/antivirus
>>>> 
>>>> _______________________________________________
>>>> 
>>>> tigers at autox.team.net
>>>> 
>>>> Donate: http://www.team.net/donate.html
>>>> Archive: http://www.team.net/pipermail/tigers
>>>> 
>>>> Unsubscribe: http://autox.team.net/mailman/options/tigers/w1gsl@mit.edu
>>>> 
>>>> 
>>>> =
>>>> 
>>>> _______________________________________________
>>>> 
>>>> tigers at autox.team.net
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>>>> 
> 
> _______________________________________________
> 
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> 



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

Message: 2
Date: Tue, 24 Jul 2018 00:05:59 +0000 (UTC)
From: Brian Glenn <ora_archy at yahoo.com>
To: Gharlowe <gharlowe at comcast.net>, Gary Winblad
	<garywinblad at comcast.net>
Cc: Tiger's Den <tigers at autox.team.net>
Subject: Re: [Tigers] Electrical short during start attempt
Message-ID: <98619860.1272168.1532390759824 at mail.yahoo.com>
Content-Type: text/plain; charset="utf-8"

A solid connection does not necessarily equate to a good ground.Just saying.B
Brian Glenn

B9470208LRXFE GT
B9471101LRXFE 
B9472615LRXFE 
B382000846LRXFE 
B382001212LRXFE 

On Monday, July 23, 2018, 2:18:00 PM PDT, Gary Winblad via Tigers <tigers at autox.team.net> wrote: 

Humm..? strange then.
Could the burned black wire have been burned previously?
Gary

On 7/23/2018 7:49 AM, Gharlowe wrote:
> Thanks, Gary.? I?ll check again, but the ground strap was bolted tightly at both ends and wasn?t broken.? I gave it a good tug.
>
> Sent from my iPhone
>
>> On Jul 23, 2018, at 10:02 AM, Gary Winblad <garywinblad at comcast.net> wrote:
>>
>> Graham,
>> The loose ground in the trunk WILL prevent it from starting.
>> BUT your problem is the ground strap on the engine.
>> Make sure it connects from the engine to the chassis (the old Alpine tranny mount threaded hole).
>> It must be loose or connected wrong to burn the small black wire.
>> It is straightforward, really only as complicated as a flashlight ;-)
>> Gary
>>
>>
>>> On 7/22/2018 11:03 AM, Graham Harlowe via Tigers wrote:
>>>
>>> Thank you all for the replies. (I knew I should have paid more attention
>>> during those EE classes!)? The starter circuit seems pretty straight
>>> forward:? heavy gauge positive cable from the battery to the starter
>>> solenoid and then to the starter/engine block.? The circuit is closed via
>>> the ground strap from the engine block to the chassis at the clutch slave
>>> cylinder and then from the chassis to the battery negative terminal via the
>>> short cable at the trunk bulkhead.
>>>
>>> The "two" ground wires that fried are actually two ends of the same wire.
>>> The wire enters the harness from the ballast resistor (chassis mount), does
>>> a 180 inside the harness, and exits the loom with the sending unit wire
>>> (block mount).? As others have said, when the heavy gauge starter circuit is
>>> open, the power seeks another ground path and the light gauge ground wire
>>> between chassis and block couldn't carry the load.
>>>
>>> I found the ground strap at the slave cylinder was intact with good
>>> connections.? I'll remove and clean up the contacts to be sure.? The battery
>>> cable at the trunk bulkhead wasn't tight.? I'll tighten that connection and
>>> hope that was the primary problem.
>>>
>>>? Let me know if there are any other places to look or items to check.
>>>
>>> Thanks again,
>>>
>>> - Graham
>>>
>>>
>>>
>>> ---
>>> This email has been checked for viruses by Avast antivirus software.
>>> https://www.avast.com/antivirus
>>>
>>> _______________________________________________
>>>
>>> tigers at autox.team.net
>>>
>>> Donate: http://www.team.net/donate.html
>>> Archive: http://www.team.net/pipermail/tigers
>>>
>>> Unsubscribe: http://autox.team.net/mailman/options/tigers/w1gsl@mit.edu
>>>
>>>
>>> =
>>>
>>> _______________________________________________
>>>
>>> tigers at autox.team.net
>>>
>>> Donate: http://www.team.net/donate.html
>>> Archive: http://www.team.net/pipermail/tigers
>>>
>>> Unsubscribe: http://autox.team.net/mailman/options/tigers/garywinblad@comcast.net
>>>
>>>

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Message: 3
Date: Mon, 23 Jul 2018 18:19:26 -0700
From: Gary <garywinblad at comcast.net>
To: Brian Glenn <ora_archy at yahoo.com>
Cc: Tiger's Den <tigers at autox.team.net>
Subject: Re: [Tigers] Electrical short during start attempt
Message-ID: <B8F073B1-71C0-429D-B09B-38BEE19CA582 at comcast.net>
Content-Type: text/plain; charset="utf-8"

Good point Brian.
Is this car freshly restored and you didn?t
want to scratch the carefully applied extra
thick powder cat?
Gary

Sent from my iPhone

> On Jul 23, 2018, at 5:05 PM, Brian Glenn <ora_archy at yahoo.com> wrote:
> 
> A solid connection does not necessarily equate to a good ground.
> Just saying.
> B
> 
> Brian Glenn
> 
> B9470208LRXFE GT
> B9471101LRXFE 
> B9472615LRXFE 
> B382000846LRXFE 
> B382001212LRXFE
> 
> 
> On Monday, July 23, 2018, 2:18:00 PM PDT, Gary Winblad via Tigers <tigers at autox.team.net> wrote:
> 
> 
> Humm.. strange then.
> Could the burned black wire have been burned previously?
> Gary
> 
> On 7/23/2018 7:49 AM, Gharlowe wrote:
> > Thanks, Gary. I?ll check again, but the ground strap was bolted tightly at both ends and wasn?t broken. I gave it a good tug.
> >
> > Sent from my iPhone
> >
> >> On Jul 23, 2018, at 10:02 AM, Gary Winblad <garywinblad at comcast.net> wrote:
> >>
> >> Graham,
> >> The loose ground in the trunk WILL prevent it from starting.
> >> BUT your problem is the ground strap on the engine.
> >> Make sure it connects from the engine to the chassis (the old Alpine tranny mount threaded hole).
> >> It must be loose or connected wrong to burn the small black wire.
> >> It is straightforward, really only as complicated as a flashlight ;-)
> >> Gary
> >>
> >>
> >>> On 7/22/2018 11:03 AM, Graham Harlowe via Tigers wrote:
> >>>
> >>> Thank you all for the replies. (I knew I should have paid more attention
> >>> during those EE classes!) The starter circuit seems pretty straight
> >>> forward: heavy gauge positive cable from the battery to the starter
> >>> solenoid and then to the starter/engine block. The circuit is closed via
> >>> the ground strap from the engine block to the chassis at the clutch slave
> >>> cylinder and then from the chassis to the battery negative terminal via the
> >>> short cable at the trunk bulkhead.
> >>>
> >>> The "two" ground wires that fried are actually two ends of the same wire.
> >>> The wire enters the harness from the ballast resistor (chassis mount), does
> >>> a 180 inside the harness, and exits the loom with the sending unit wire
> >>> (block mount). As others have said, when the heavy gauge starter circuit is
> >>> open, the power seeks another ground path and the light gauge ground wire
> >>> between chassis and block couldn't carry the load.
> >>>
> >>> I found the ground strap at the slave cylinder was intact with good
> >>> connections. I'll remove and clean up the contacts to be sure. The battery
> >>> cable at the trunk bulkhead wasn't tight. I'll tighten that connection and
> >>> hope that was the primary problem.
> >>>
> >>> Let me know if there are any other places to look or items to check.
> >>>
> >>> Thanks again,
> >>>
> >>> - Graham
> >>>
> >>>
> >>>
> >>> ---
> >>> This email has been checked for viruses by Avast antivirus software.
> >>> https://www.avast.com/antivirus
> >>>
> >>> _______________________________________________
> >>>
> >>> tigers at autox.team.net
> >>>
> >>> Donate: http://www.team.net/donate.html
> >>> Archive: http://www.team.net/pipermail/tigers
> >>>
> >>> Unsubscribe: http://autox.team.net/mailman/options/tigers/w1gsl@mit.edu
> >>>
> >>>
> >>> =
> >>>
> >>> _______________________________________________
> >>>
> >>> tigers at autox.team.net
> >>>
> >>> Donate: http://www.team.net/donate.html
> >>> Archive: http://www.team.net/pipermail/tigers
> >>>
> >>> Unsubscribe: http://autox.team.net/mailman/options/tigers/garywinblad@comcast.net
> >>>
> >>>
> 
> _______________________________________________
> 
> tigers at autox.team.net
> 
> Donate: http://www.team.net/donate.html
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