In article ,
James Wilkinson Sword wrote:
On Sun, 18 Feb 2018 21:35:18 -0000, dennis@home wrote:

On 18/02/2018 21:20, The Natural Philosopher wrote:
On 18/02/18 20:02, dennis@home wrote:
On 18/02/2018 17:03, The Natural Philosopher wrote:
On 18/02/18 11:12, Dave Plowman (News) wrote:
In article ,
The Natural Philosopher wrote:
On 17/02/18 18:25, Dave Plowman (News) wrote:
In article ,
James Wilkinson Sword wrote:
On Sat, 17 Feb 2018 12:58:50 -0000, Dave Plowman (News)
wrote:

In article ,
James Wilkinson Sword wrote:
The best way would probably be to deliberately make the vehicle
inoperative, stick on the hazard lights, then you can claim you
broke
down. Pull out an HT lead, then you can try to start it
without success.

You have a car with an HT lead? How very quaint.

How else do you think the spark plug operates? (Diesels excepted)

You've not looked at an engine made in the last 20 years or so?

yep. coil pack, HT leads...

So you think removing one HT lead would stop it running? You
probably do.

no, but swapping two might work



Not very likely, many engines just spark on all cylinders at the same
time. Only one is actually in a state where it will ignite.

Oh dear.



You need to learn more.
Try

https://www.popularmechanics.com/car.../a603/2593431/

for how it works.

Why would you want to create 4 sparks for the price of one?

Sparks are cheap. Beauty with wasted spark - which dennis is thinking of
but getting rather confused with - is it only needs a signal from the
crankshaft. Dizzy ignition or any form of sequential requires an engine
phase signal. A dizzy being the very worst as that signal varies due to
slop in the drive to it.

--
*He who laughs last has just realised the joke.

Dave Plowman London SW
To e-mail, change noise into sound.