Originally Posted by gasman
You should never need to remove the adapters unless you are changing the cyl's.
What? You remove plugs on a regular basis, why not the adapters?
If you follow the directions in the E-mag manual, you will not have an issue with their adapters.
Put anti-seize on both the plug and the adapter. Torque the plug, not the adapter to 18 ft-lbs, and that will set the torque on both.
When it is time to remove the plug, put the socket on the plug only. If the adapter comes out, grab a second socket and spate them. Reinstall them per the instructions.
In nine years of flying with P-mags the only time I have had an issue was when listening to someone who suggested I install them per the LightSpeed manual and torque the insert then install the plugs. I never tried that a second time.
From the E-mag manual:
Originally Posted by E-mag Ignitions
Auto Spark Plug Adapters - Plug adapters permit the use of 14mm automotive type plugs with a ¾” reach. [Not tested with engines that use long-reach (13/16”) aircraft plugs.] First, install adapters with the supplied gasket on the spark plugs finger tight. Then, insert the combined assembly (plug with adapter) in the engine and tighten to 18 ft/lb (standard auto plug torque).
Note 1: If you install and torque the adapters separately, stresses will be focused at the adapter neck and can cause it to fail during installation.