HI Julian

On Thu, 05 Jul 2007 06:08:30 GMT, "Julian" wrote:


"Dave Plowman (News)" wrote in message
...
In article ,
Adrian wrote:
Ford had a real problem with this with their Kent (escort etc) engines
years ago. They provided a retrospective modification kit which was an
electrically powered air solenoid valve that was plumbed into the
intake manifold - switching off the ignition removed power from the
solenoid and air flowed into the manifold, the mixture was weakened
and it didn't run on.

Sounds complicated (in relation to the remainder of the vehicle !)

It's actually pretty easy. The biggest problem may be providing a suitable
outlet in the inlet manifold if the car doesn't have a brake servo (many
Minors have had one added)
If it has you use a T piece and rubber tubing to the valve and then simply
wire it up to the ignition. It is closed with the ignition on, open when
off, so lets air in to stop the engine when you switch off.

If there's no easy way to plump into the inlet manifold then there is anther
method. (used by Chrysler on Carter carb equipped engines amongst others)
It's an electromagnetic solenoid acting on the throttle stop, it maintains a
high (normal) engine speed with the engine running and allows the throttle
to close to a low (curb idle) speed position with the ignition turned off.
having said that it's still prolly more trouble that it's worth to fit.

Now we are starting to get complicated ! g

I've got an instinctive aversion to fitting 'things that stop an
engine and have to be energised to make it run normally'....
IANL I was involved in 'fail-safe' design...


You could just switch the engine off with it in gear and simultaneously
switch off and raise the clutch pedal. (other foot on brake)

I *could* - but it's a bit brutal g - don't think I've not thought
of it !

Many thanks
Adrian