Flyboy201 Posted March 13, 2021 Report Posted March 13, 2021 The master switch in my 80J broke and jammed in the "ON" position. With a bit of work I was able to encourage it into the off position, and now I consider this situation as "AOG". I called around to most of the usual suspects for new or used, but none available...at least up to now. Information received suggests that it cold be another 4 weeks before I be able to purchase a new one. I was wondering if anyone might have a spare to sell. maurysimms@gmail.com Quote
A64Pilot Posted March 13, 2021 Report Posted March 13, 2021 I believe it’s just a double pole, double throw switch with spade connectors, if you wanted to temporarily install something that would work if you can’t get the correct switch for awhile 1 Quote
carusoam Posted March 13, 2021 Report Posted March 13, 2021 The real switch is the relay that gets opened and closed by the master switch... Finding a proper switch to activate the relay shouldn’t be that hard... Getting the right relay is sometimes challenging... Got a pic, or part number for what you are looking to replace... The best way to get the exact switch... call Dan at Lasar... if Dan doesn’t have one... you know there is a problem in the supply chain... You can always get a used one while waiting for the supply chain to catch up... need some contacts in the pre-flown department..? Best regards, -a- Quote
RobertGary1 Posted March 13, 2021 Report Posted March 13, 2021 Mine is just this $45 one if you mean the pilot switch in the cockpit. https://www.aircraftspruce.com/catalog/elpages/cessnasplit.php Quote
A64Pilot Posted March 13, 2021 Report Posted March 13, 2021 I just remembered, if that **** isn’t perfectly aligned to the panel it catches somehow, loosen both screws and see if it gets any easier, then lightly pry it to one side or the other and snug up the screws, if you find a spot that it’s not too tight, tighten down on them. Mine is much tougher to flip than the others, I assume it’s because it’s actually two switches, or maybe mine is going bad too? ‘The split Cessna switch would probably work, our Master isn’t split though, the Cessna one side is alternator and the other the battery relay, I believe we are the same, but don’t have the ability to turn off the alternator with a switch, we would have to pull the field CB. ‘Maybe Cessna does it that way as usually you can’t pull their breakers? Oh, I have an 81J so I assume we are the same. Quote
carusoam Posted March 13, 2021 Report Posted March 13, 2021 In ’94... Mooney went with three separate switches... Master, alternator field, and avionics... The split switch allows for some space savings... but not much more... It was a sure improvement over having a single switch... PP thoughts only, not a mechanic... -a- Quote
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