Lang whistle generic. Whistles on the compression stroke and stops whistling at approximately Top Dead Center. Whistle is attached to hose with 14mm and 18mm spark plug threads.
Lang whistle whistles on the compression stroke and stops whistling at approximately Top Dead Center. The Lang whistle attaches to a hose with 14mm and 18mm spark plug threads. The whistle is very useful to locate approximate Top Dead Center for cylinder leak testing, and can also be used to set approximate distributor timing.