right mag live during start??

[andya]

I met a met a old WW2 P-38 and P-51 pilot that lost his right arm and shoulder to cancer right after the war.
About mid 50's he decided he wanted to fly again, his first plane was a Globe Swift, then a C-180 and finally a
PA-24 comanche. He did just fine till he quit at age late 70's.

[mmoyle]

Adding a impulse coupled mag on the right side also means adding two new studs, a new spacer and a new drive gear. Not to mention reworking the wiring at the switch. If you can source the parts other than lycoming along with a new mag I would guess over a grand to upgrade. If using left mag only on start works why add the cost and weight?


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One of those while I'm at it things. Didn't cost much...had an extra impulse coupler. Sent it in with a couple junk cores....Aircraft magneto service set me up for less than ACS sell the bendix mags/kit. Used spacer I machined to obtain proper gear alignment. Bought a couple studs... new ignition switch along with a complete rewire....


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[Steve Pierce]

Have seen the dual impulse on Lycoming powered float planes.