Swapping ACS Key Switch for Individual Mag and Start Switches

[Steve Watkins]

I installed a Surefly Sim4 in place of a slick impulse mag on the left side of an (I)O-360 and I'm having an issue with mag checks. When going back from Right to Left on the way to both I get a engine miss because there is no overlap and both are grounded for a split second. At idle it is no big deal, but at runup power it feels abusive to the exhaust system. I want to ditch the key switch and install separate rocker switches for each mag and a momentary for the starter. Requesting suggestions for switch part numbers that are appropriate and durable. Thanks!

 

[wjb]

I installed a Surefly Sim4 in place of a slick impulse mag on the left side of an (I)O-360 and I'm having an issue with mag checks. When going back from Right to Left on the way to both I get a engine miss because there is no overlap and both are grounded for a split second. At idle it is no big deal, but at runup power it feels abusive to the exhaust system. I want to ditch the key switch and install separate rocker switches for each mag and a momentary for the starter. Requesting suggestions for switch part numbers that are appropriate and durable. Thanks!

Great idea! I did the same from the start ... and love it.

Two 2TL1-3 for the mags: https://www.mouser.com/datasheet/2/187/HWSC_S_A0001971863_1-3073175.pdf,
One OTTO P3-1 for the start: https://www.mouser.com/datasheet/2/603/OTTO_S_A0006344485_1-2573553.pdf

Both are great quality, mil-spec devices.

 

[RV7 To Go]

Switching to the SureFly, which is on my RS with an impulse Slick on the LS, and back more slowly solved the issue for me. No more backfiring during the switch.

 

[71459]

 

[SMRacer]

If cost is no factor:

Switch panels aircraft Electroair

www.electroair.net