Trying to connect an Airmore but can't seem to get it working right. Keeps getting stuck open and I suspect it's the way I have it hooked up from the cutout to the pedal.
Pics or diagram would be nice.
Is it missing a spring to pull the lever on the whistle closed when not in use?
Not to hijack your thread, did you get the private message that I sent to you about some Gray parts?
And to keep it on track, I believe that this is the spring that Mark is referring to:
There really isn't too much to hooking them up. You have a valve, a cable that runs to the pedal (if there are obstructions a pulley helps get around that) and the cutout pedal.
I use a rod rather than a cable to hook up between the pedal and the whistle. Even if the whistle jams open, it can be released by pulling the pedal up. A return spring can also be added to the pedal if that helps.
This may not be so easy on wrong hand drive cars.
Allan from down under.
I use the same Lucas valve. Some of the springs are heavier than others. If you add an additional spring to help pull it closed, mounted to a point a little bit towards the rear, it will take care of the problem. These valves are better than the original as you don't have to cut through the entire exhaust pipe.
Not all whistle valves are (were) created equal. Some from the era do require the tube to be cut completely thru and others do not.