HI Dave

On Thu, 05 Jul 2007 00:01:04 +0100, "Dave Plowman (News)"
wrote:

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.

I meant 'philosophically' rather than 'practically'... g

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)

Not this one - she's still on the original 'no servo / drum brakes'
setup. Heavier than the servo'd RAV4 on the brakes - but perfectly
OK...

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.

Understood.
I did ask on the Morris Minor Owners' Club forum (they were equally
scathing about the 'magic catalyst' !) and the general consensus
seemed to be mixture or timing first, with a de-coke next...

Somebody suggested a quick blast up the motorway - sadly not an
option.
Don't know where I'd need to go to find a motorway - the nearest
traffic lights must be 30 miles away g.

Lots of the travelling is done at (relatively) slow speeds - and
there's a daily trip to the local village which must be all of 8 miles
round-trip (and it's downhill all the way there) - so maybe a longer
trip every so often might help to blow away the cobwebs...

Many thanks
Adrial