Air Intake Shut Off

[josh111]

I am trying to make a 24/2 engine made by Poweranand to be safe for remote operation. This involves designing some kind of electric shut off as it does not come with one. I plan to use one fuel solenoid for each injector. (on the non pressure side)


Since I am told these engines have a tendency to run away sometimes on their own engine oil, I plan to use an air intake shut off in the form of a simple solenoid valve on the air intake.

Another reason for air intake shut off is:
I was doing it using two solenoids, one per cylinder.They were placed on the non-pressure side of each individual injector, [see photo at link below if necessary] as close as possible to the injectors. What I found was that when the valve closed, the engine ran for 30 - 60 seconds before shutting off. One solution to this would be using an electric stop solenoid to pull the fuel rack. This, however would require additional fabrication. It would be much easier to just put a standard solenoid on the air intake.


My question is does shutting down the engine by just shutting off the air on a continuous basis cause any problems for it on the next start-up? Will it cause any long term damage to do it this way on a regular basis?

Below is the engine:

http://www.poweranand.com/slow_speed_lister_type.htm

[wellandpower]

Josh,

When you shut the air off to the engine, you should not cause any damage to one of these simple air cooled engines.
I don't think you should cause any damage by removing the air supply to the unit.

Regards

Charlie