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RE: Heavy Steel Cable

To: "'wizardz'" <wizardz@maxinter.net>,
Subject: RE: Heavy Steel Cable
From: "Bowen, Patrick A RP2" <PABowen@sar.med.navy.mil>
Date: Wed, 12 Jan 2000 12:26:52 -0500
Paul your answer might be so.  I have however noticed, perhaps an
unintentional design side affect, that with the cable on the engine it does
not rotate as much under power.  It does make sense that it is to keep the
engine from flying forward in accidents.

Patrick

-----Original Message-----
From: wizardz [mailto:wizardz@maxinter.net]
Sent: Wednesday, January 12, 2000 10:08 AM
To: Bowen, Patrick A RP2; 'RALPH JANNELLI'; Douglas Braun & Nadia
Papakonstantinou; spitfires@autox.team.net
Subject: Re: Heavy Steel Cable


Hi Patrick,
I kind of have a rough time believing the cable would assist in any type
of longitudinal twist limitation since it runs parallel to the rotational
forces.

Yes, it is an electrical ground connection, and it acts as a forward stop
mechanism in the case of a sudden stop possibly limiting directional
forces on the motor and tranny mounts, but I believe it's design intent
was more to protect stressing (stretching) the constant velocity joint on 
the driveshaft of the later model 1500's.

Paul Tegler
OBie - '73 BGT - Daily Driver
http://www.teglerizer.com/mgstuff/ob_description.htm
Rat -'80 Spitfire  - fledgling recently left the nest
http://www.teglerizer.com/triumphstuff/spit80.htm
Punkin' - '78 Spitfire - in Superb Shape!
http://www.teglerizer.com/triumphstuff/spit78.htm
Lil' Greenee - '73 RWA Midget - finally home
http://www.teglerizer.com/midgetstuff/index.html
email: wizardz@toad.net        http://www.teglerizer.com 


-----Original Message-----
From: Bowen, Patrick A RP2 <PABowen@sar.med.navy.mil>
To: 'RALPH JANNELLI' <RALPH.JANNELLI@Prodigy.net>; wizardz
<wizardz@toad.net>; Douglas Braun & Nadia Papakonstantinou
<dougbert@rcn.com>; spitfires@autox.team.net <spitfires@autox.team.net>
Date: Wednesday, January 12, 2000 9:59 AM
Subject: RE: Heavy Steel Cable


Ralph, this cable is used mainly on 1500's I don't know the exact start date
but I believe it to be about the crossover from Mark IVs to 1500s.  It acts
as a grounding cable, but also, and probably its main purpose is that it
prevents the engine from twisting on the mounts.  Or so to say, it
stabilizes the engine somewhat and keeps in from twisting under high rpm.

Patrick

-----Original Message-----
From: RALPH JANNELLI [mailto:RALPH.JANNELLI@Prodigy.net]
Sent: Wednesday, January 12, 2000 8:38 AM
To: wizardz; Douglas Braun & Nadia Papakonstantinou;
spitfires@autox.team.net
Subject: Re: Heavy Steel Cable



I've owned 3 Spitfires a '70, '72 and '65. None of them had the cable you
are describing. There is a "tie rod" part number 131456 shown in the
Spitfire Mark I factory parts manual that is shown going from a bracket
attached to the rear the transmission to the frame with bushings on both
ends. But I have never actually ever seen one of these installed.

The electrical grounding cable goes from the bell housing to the fire wall
in the engine compartment, there is no direct electrical connection to the
frame that I know of, other than through the body to frame mounting bolts.

Ralph Jannelli
Matthews, NC
'65 Spitfire MKII
'72 Spitfire MKIV
'80 TR8 DHC

----- Original Message -----
From: wizardz <wizardz@toad.net>
To: Douglas Braun & Nadia Papakonstantinou <dougbert@rcn.com>;
<spitfires@autox.team.net>
Sent: Tuesday, January 11, 2000 10:49 PM
Subject: Re: Heavy Steel Cable


>
> Hhhmmmm...don't know for sure if the '72's had one but
> the cable is a major electrical ground and safety
> mechanism. Check your rear transmission mount.
> On the driver's side (US spec) there should be a small
> boxish shaped bracket that sticks down from the mount.
> It should have a hole in the front of it that would have mounted this
cable.
> The other end of this cable is actually used as one of the
> motor to tranny mount bolts.
>
> Paul Tegler   wizardz@toad.net     http://www.teglerizer.com
> 1973 MGBGT - daily driver
>  http://www.teglerizer.com/mgstuff/ob_description.htm
> 1978 Spitfire - in superb Shape
> http://www.teglerizer.com/triumphstuff/spit78.htm
> 1973 Round wheel Arch wire wheel Midget
> http://www.teglerizer.com/midgetstuff/index.html
>
>
>
>
> -----Original Message-----
> From: Douglas Braun & Nadia Papakonstantinou <dougbert@rcn.com>
> To: spitfires@autox.team.net <spitfires@autox.team.net>
> Date: Tuesday, January 11, 2000 10:13 PM
> Subject: Re: Heavy Steel Cable
>
>
> >
> >What is this steel cable for?  It certainly doesn't exist on
> >my MK IV...  I would guess it is meant to improve the
> >crashworthiness of the car somehow.
> >
> >Doug Braun
> >'72 Spit
> >
> >
> >>There is also a heavy
> >>steel cable attached to the front of the bell housing on one end and the
> >>frame on the other.  If you remove this it provides you with a little
more
> >>freedom of movement in that area.
> >
>


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