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Author Topic: Belly Tank Build Diary  (Read 142264 times)

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Offline Lemming Motors

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Re: Belly Tank Build Diary
« Reply #435 on: January 15, 2020, 04:36:43 AM »
Genius idea.

For the electronically challenged could this be achieved with a relay (NO/NC dual pole)?

The funky wire wanders around the engine bay, connected at one end to power / earth and with a fuse in the circuit and connected to the control pins of a dual pole relay. With power on the relay is powering the green light.

Fire causes the funky wire insulation to melt causing a short circuit, the fuse blows meaning the relay switches and the red light comes on - would this work?
A Bonneville Lakester please barman.
Certainly sir; a lick of salt, a sip of gas and a twist of Lemming. More Lemming sir?
Just a squeeze.

A Squeeze of Lemming it is sir.

Offline Mike Brown

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Re: Belly Tank Build Diary
« Reply #436 on: January 15, 2020, 06:24:06 AM »
Genius idea.

For the electronically challenged could this be achieved with a relay (NO/NC dual pole)?

The funky wire wanders around the engine bay, connected at one end to power / earth and with a fuse in the circuit and connected to the control pins of a dual pole relay. With power on the relay is powering the green light.

Fire causes the funky wire insulation to melt causing a short circuit, the fuse blows meaning the relay switches and the red light comes on - would this work?

That would work but I don't like it.  How about I build you a fire alarm circuit and send you one? 

Mike Brown

Offline Lemming Motors

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Re: Belly Tank Build Diary
« Reply #437 on: January 15, 2020, 07:15:39 AM »
Mike, thats very kind but I am in the UK - could you do a circuit diag with parts identified and I could have a play myself?
John
A Bonneville Lakester please barman.
Certainly sir; a lick of salt, a sip of gas and a twist of Lemming. More Lemming sir?
Just a squeeze.

A Squeeze of Lemming it is sir.

Offline Rex Schimmer

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Re: Belly Tank Build Diary
« Reply #438 on: January 15, 2020, 05:18:54 PM »
Mike,
Remember John is in Engand which mean he will probably have to use Lucas parts so even if your device is a "perfect" design it won't work! If course it might If you poured warm beer over it.

Rex
Rex

Not much matters and the rest doesn't matter at all.

Offline Mike Brown

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Re: Belly Tank Build Diary
« Reply #439 on: January 16, 2020, 06:57:58 AM »
The printed wiring board would be very small, are you sure it couldn't be sent in the mail?  I would hate for you to have to pour warm beer on the thing each time you raced. 

Offline Lemming Motors

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Re: Belly Tank Build Diary
« Reply #440 on: January 16, 2020, 07:53:54 AM »
Rex
If working from plans in the UK then the type of smoke needed to energize the circuit would have to be specified as Lucas used a variety of smoke types in its products; I have personally noted dense / white, brown / acrid, and hot / wispy although the source of the former can be confusing.
I had a Mk1 Jag that preformed an interesting trick; all following vehicles disappeared in a very thick very white cloud and it took a while to diagnose that a brake booster seal was leaking and on the over run it inhaled brake fluid via the vac line to the inlet manifold and poof.

Mike
If you wouldn't mind making another circuit board I can provide a NJ address and get it from Andy at some future stage - we work for the same company and occasionally he does a parts mule run for me aka a business trip to the UK.
A Bonneville Lakester please barman.
Certainly sir; a lick of salt, a sip of gas and a twist of Lemming. More Lemming sir?
Just a squeeze.

A Squeeze of Lemming it is sir.

Offline wobblywalrus

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Re: Belly Tank Build Diary
« Reply #441 on: January 17, 2020, 01:19:31 AM »
It is no problem to send electronics by mail to the UK and back.  Yearly I send some ignition control boxes to Dorset to be reprogrammed with different spark advance curves.  There have never been any issues.

Offline Mike Brown

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Re: Belly Tank Build Diary
« Reply #442 on: January 17, 2020, 07:01:36 AM »
Thanks to everyone for the help.  I will get a board together in the next month or so and then we can determine how to get it to the UK.