[DeTomaso] MSD Box Autopsy Results

Tomas Gunnarsson guson at home.se
Sun Jun 13 10:46:46 EDT 2010


Summit has them too:

http://www.summitracing.com/search/?keyword=remote%20battery%20joumper&dds=1

Tomas

-----Original Message-----
From: detomaso-bounces at realbig.com
[mailto:detomaso-bounces at realbig.com]On Behalf Of Thomas Tornblom
Sent: den 13 juni 2010 13:30
To: detomaso at realbig.com
Subject: Re: [DeTomaso] MSD Box Autopsy Results


Some audis, my 1996 a6 is an example, has a dedicated jumper cable
connection under the hood. The battery is mounted under the rear seat.

Might be a good idea to salvage one of these and mount in the engine
compartment of the Pantera.

Thomas


2010-06-13 10:35, Tomas Gunnarsson skrev:
> I like to use some part of the driveline. The bellhousing should be the
> closest circuit to the starter as they're bolted together. I've also used
> the intake. If the clamp design allows it putting the red lead on the
> starter relay stud is a good idea IMO.
>
> Tomas
>    -----Original Message-----
>    From: pantdino at aol.com [mailto:pantdino at aol.com]
>    Sent: den 13 juni 2010 05:05
>    To: guson at home.se; detomaso at realbig.com
>    Subject: Re: [DeTomaso] MSD Box Autopsy Results
>
>
>
>    Good point, although one can simply modify the rule a little and clamp
> elsewhere.
>
>    Where do people connect the black lead when jump starting a Pantera?
The
> brake booster?
>
>    Jim
>
>
>
>
>
>    -----Original Message-----
>    From: Tomas Gunnarsson<guson at home.se>
>    To: pantdino at aol.com; detomaso at realbig.com
>    Sent: Sat, Jun 12, 2010 3:01 pm
>    Subject: RE: [DeTomaso] MSD Box Autopsy Results
>
>
>    It can be simplified to three lines.
>
>    The last connector to be clamped on is the black one on the "dead car".
>    That connection must be made away from the battery.
>    Remove all connections in reverse order to when you connected them.
>
>    While your rule may fall within my description it fails to avoid arcing
> close to the battery.
>
>    Tomas
>      -----Original Message-----
>      From: pantdino at aol.com [mailto:pantdino at aol.com]
>      Sent: den 12 juni 2010 23:35
>      To: guson at home.se; detomaso at realbig.com
>      Subject: Re: [DeTomaso] MSD Box Autopsy Results
>
>
>      Your instructions are very clear.  But one must memorize them or
truly
> understand the physics involved.
>      I like my rule because it does not require either of those.  Maybe
I'm
> just not very smart. :-)
>
>      Jim
>
>
>
>
>      -----Original Message-----
>      From: Tomas Gunnarsson<guson at home.se>
>      To: detomaso at realbig.com
>      Sent: Sat, Jun 12, 2010 2:00 pm
>      Subject: Re: [DeTomaso] MSD Box Autopsy Results
>
>
> To me it's pretty simple.
>
> 1. Connect red jumper cable to the + side of one of the batteries. No
> posibility of arcing.
> 2. Connect red jumper cable to the + side of the other battery. No
> posibility of arcing.
> 3. Connect black jumper cable to the - side of the donor car battery.  No
> posibility of arcing.
> 4. Connect black jumper cable to ground point away from receiving battery
> (typically some part of the engine) on the "dead car". Probable arcing.
>
> 5. Start "dead car".
> 6. Remove cable end attached at step 4.
> 7. Remove remaining cables, order not important.
>
> Tomas
>
> -----Original Message-----
> From: detomaso-bounces at realbig.com
> [mailto:detomaso-bounces at realbig.com]On Behalf Of pantdino at aol.com
> Sent: den 12 juni 2010 22:33
> To: jb841 at cox.net; shawkins777 at comcast.net
> Cc: michael at michaelshortt.com; detomaso at realbig.com; thomas at Hax.SE
> Subject: Re: [DeTomaso] MSD Box Autopsy Results
>
>
> So the rule "never let the ground be on there alone" or whatever it is
still
> applies to whether you are hooking up a battery or jumping, apparently.
>
> Jim Oddie
>
>
>
>
>
>
> -----Original Message-----
> From: John Buckman<jb841 at cox.net>
> To: Steve Hawkins<shawkins777 at comcast.net>
> Cc: michael at michaelshortt.com; 'DeTomaso Forum'<detomaso at realbig.com>;
> 'Thomas Tornblom'<thomas at Hax.SE>
> Sent: Thu, Jun 10, 2010 3:42 pm
> Subject: Re: [DeTomaso] MSD Box Autopsy Results
>
>
> The wire that is connected last will arc if there is the potential for
> current
> o flow.
> The wire that is disconnected first will arc if there is current flowing.
> When using jumper cables, always CONNECT the ground last, and always
> DISCONNECT
> he ground first.  Do not connect the ground to the battery.  Connect the
> ground
> o the engine (or frame).
> hen you connect the ground cable, there will be an arc.  You do not want
> that
> rc to be near the battery as it could ignite flammable gasses that may be
> scaping from the battery vents (read  BOOM).
> John
>
> On Jun 10, 2010, at 3:16 PM, Steve Hawkins wrote:
>> Then why do you get sparks when you install the ground first or remove it
>   last?
>
>   Steve
>
>   -----Original Message-----
>   From: detomaso-bounces at realbig.com [mailto:detomaso-bounces at realbig.com]
On
>   Behalf Of Thomas Tornblom
>   Sent: Thursday, June 10, 2010 2:35 PM
>   To: michael at michaelshortt.com
>   Cc: DeTomaso Forum
>   Subject: Re: [DeTomaso] MSD Box Autopsy Results
>
>
>   The only reason for disconnecting the ground first is to avoid any
>   shorts to ground while you're fiddling with the positive cable.
>   Electrically there is zero difference whichever cable you disconnect
>   first.
>
>
>   Mental note to self: steer clear of any MSD ignition...
>
>
>   10 jun 2010 kl. 21.18 skrev "michael at michaelshortt.com"
>   <michaelsavga at gmail.com
>> :
>
>> I just received my original MSD box back from repair with a note, Too
>> damaged to repair, circuit board fried!
>>
>> I called and asked for a tech who could go over the notes,
>>
>> they asked if I had a one wire alternator...No
>>
>> Asked if I had disconnected the battery using the Positive post
>> first...No,
>> but who knew that mattered?
>>
>> Then it hit me, I had left the fan on ( stupid fan!!!!! ) and had to
>> be jump
>> started before I left the last place I was at before it died,
>>
>> I let SOMEBODY ELSE attach the jumper cables while I started the
>> car, and
>> then remove them once it kicked over
>>
>> By removing the Positive cable first and the Ground cable last, the
>> MSD dude
>> said that it spiked the system.
>>
>> WTF?
>>
>> I ran for about 5 minutes after that and then backfired and died.
>>
>> So now we have something new to debate.....
>>
>> Michael Shortt
>>
>>
>>
>> Meanwhile, the MSD Box 6AL and Tach Adapter are being removed from
>> the rear
>> firewall and  relocated to the front boot,
>> now there won't even be room for panties and condoms in the front!
>>
>>
>>
>>
>> --
>>
>>
>>
>>
>>
>>
>>
>> Michael L. Shortt
>> Savannah, Georgia
>> www.michaelshortt.com
>> michael at michaelshortt.com
>> 912-232-9390
>>
>>
>> This email is protected by the Electronic Communications Privacy
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--
Real life:   Thomas Törnblom             Email:  Thomas.Tornblom at Hax.SE
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