late model Spits have a 3 terminal oil pressure switch.
It has the usual single terminal to ground for the idiot light.
The other two terminals are a 'floating' SPST (single pole single throw)
switch.
It normally controlled the overrun solenoid on the carbon canisters.
A neat trick is to use this switch is series with the pump.
You get 3 benefits from this.
1) the engine won't fire off until you crank it enough to get oil pressure.
2) the loss of oil pressure (motor stops) the power to the fuel
pump is cut as well.
3) Open the bonnet.. pull the connector of the switch just as little bit...
and they'll have a hell of a time trying to drive anywhere if it's stolen
or a joy rider grabs it.
Paul Tegler wizardz@toad.net http://www.teglerizer.com
OBie - '73 BGT - daily driver
http://www.teglerizer.com/mgstuff/ob_description.htm
Punkin' - '78 Spitfire - corner ripping screamer
http://www.teglerizer.com/triumphstuff/spit78.htm
Lil' Greenee - '73 RWA Midget - lady killer
http://www.teglerizer.com/midgetstuff/index.html
-----Original Message-----
From: Graham Stretch <technical@iwnet.screaming.net>
To: D.T.Gebhard <kimkell@decaturnet.com>
Cc: List Spitfires <spitfires@autox.team.net>
Date: Tuesday, March 07, 2000 5:34 PM
Subject: Re: 74 Is Alive!/elec. feul pump
>
>Hi
>Fit the inertia switch from a PI variant or a generic device for a modern
>car, these things will switch off the power to the pump if deceleleration
in
>the order of 5G (I think) occurs, only down side is an emergency stop may
>cause the switch to cut power, small price for peace of mind!
>
>Graham.
>
>----- Original Message -----
>From: D.T.Gebhard <kimkell@decaturnet.com>
>To: Dan Buettner <danb@thelittlemacshop.com>; Patrick Baize
><speedracre@netzero.net>
>Cc: <spitfires@autox.team.net>
>Sent: Tuesday, March 07, 2000 1:43 PM
>Subject: Re: 74 Is Alive!/elec. feul pump
>
>
>>
>> I also have an electric pump. The one thing that
>> bothers me about it is the chance of it continuing to
>> pump in the event of a crash causing a fire hazard. How
>> do other list members deal with this "problem". Other
>> than that I love the reliability of it. Also where is
>> the best place to mount. Mine is on the firewall just
>> in front of the driverside under the bonnet.
>> Dave Gebhard
>> 1977 Spitfire...coming back to life
>> ----- Original Message -----
>> From: Dan Buettner <danb@thelittlemacshop.com>
>> To: Patrick Baize <speedracre@netzero.net>
>> Cc: <spitfires@autox.team.net>
>> Sent: Monday, March 06, 2000 9:07 PM
>> Subject: Re: 74 Is Alive!
>>
>>
>>
>> >Add another Spitfire to the list of drivable cars!
>>
>>
>> Congratulations!
>>
>> >
>> >Today after inspection, I drove the 74 Spit for 51
>> miles. It drove very
>> >well. I even pushed the overdrive button, (Nervously)
>> and boy dod that
>> >thing kick in! dropped my RPM's just like that. Plenty
>> of Pep at 75 MPH
>> >with the overdrive on. Never had an overdrive
>> before, I can't imagine
>> >not having one now.
>> >
>> >Only 2 problems I have. One will be taken care of
>> tomorrow, New
>> >Altenator. The other was a sympton of no gas. just
>> for a couple of
>> >minutes. I pulled over it idled fine. I took off agian
>> , no problem.
>> >I have decided to get a fuel pump anyway. Which is
>> better Mechanical
>> >or electric?
>>
>>
>> If you're just now deciding to get a fuel pump ... this
>> could explain
>> your "no gas" trouble. ;)
>>
>> I have an electrical one, and the single solitary
>> problem I've had in
>> 9 years (that's really only about 18-20,000 miles) was
>> that the grime
>> caused a poor ground once. Cleaned off the grime,
>> tightened the
>> mounting screw, and all was back to normal.
>>
>> A couple of advantages of the electrical ones: 1) you
>> can replace
>> them more easily, 2) they don't present an engine
>> hazard should they
>> break, and 3) if yours breaks in timbuktu, a
>> replacement generic
>> electrical one will be much easier to come by than a
>> Spitfire
>> mechanical one.
>>
>> >
>> >The only other anoiance was the pain in my left
>> shoulder. I found the
>> >top frame to be jabbing me. Never was the case with
>> my 63. I might have
>> >to make this top like the 63 top.
>>
>>
>> I have the same trouble. If you find a solution, I'll
>> worship you.
>>
>>
>> Dan
>>
>> * * * * * * * * * * * * * * * * * * * * * * * * * * * *
>> * * * * * * *
>> Dan Buettner - Des Moines, Iowa -
>> mailto:danb@thelittlemacshop.com
>>
>> 1977 Spitfire, FM64159U, now with an O too. Runs &
>> drives, but shakes
>> like crazy; needs new tires and a steering/suspension
>> rebuild.
>> http://home.earthlink.net/~nickndan/gmachine/greenmachi
>> ne.html
>>
>> 1957 TR3, TS15098L. Needs an O. Undergoing frame-off
>> restoration begun 9/99.
>> http://home.earthlink.net/~nickndan/TR3/TR3.html
>>
>> 1988 Honda Civic 4WD Wagon. Gets me to work and back
>> home again every day.
>> No home page. (go figure)
>>
>>
>
>
>
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