I am afraid everyone seems to be missing my point. I have a manual shut off lever which is a pain. Its for emergencies only. Connected to it is a linear actuator / servo / solenoid. When it is powered it releases the stop lead and the lever moves forward. If the power fails it stays in its last known position either pull or push.
This linear actuator is a PITA. It corrodes over two years. The chinese always send me the wrong one.
My question was, and only one person has answered it so far, can I fit a valve in the fuel line between the lift
pump and the injector distributer pump? It is a CAV, Hydraulic governed system.
Reading the spec the governer shuts off the feed on the low pressure side. That's what I would like to do. Just momentarily to stop the engine, or pull the handle in an emergency