carusoam

Switches often wear… they are designed with an over center bump that keeps the either opened or closed… as they wear, they can easily be bumped and switch positions… I haven’t seen one physically switch, but not change the open/close status… in this case… it sounds like the switch is operating correctly. But, the next device in line is probably not… master switches are not as complex as the CB switches that carry more load… PP thoughts only, not a mechanic… best regards, -a-

Great details Lance! thanks for the memory bump! in the non-gps environment… that radio was way cool! best regards, -a-

Roughly speaking… max FF is about 2X cruise FF… if your io360 is cruising using 10gph, it’s full rich max FF will be near 20gph… same for the io550… 15 and 30 gph anyone with a Missile using 2700 rpm… can easily benefit from moving the FF towards a higher number. the ovation uses 2500 rpm and 25 gph (?) the Standing O uses 2700 rpm and enjoys 30 gph… the excess FF goes directly to cooling EGTs and CHTs excess FF to a cylinder can affect the A/F ratio too much.. causing misses and washing the oil of the cylinder walls…. we are supposed to follow official documentation for setting FF. But, sometimes the documentation is in error, or not updated… check with your mechanic on how to handle increasing FF… PP thoughts only, not a mechanic…

When we want to know why one cylinder is running hotter than the others… if we have a FF gauge, we can run a Gami spread test… if we don’t have a FF instrument.. we can run the test, but may not get enough detail… if air is leaking into a cylinder, or an injector is clogged… the Gami spread will usually point it out… lean slowly while approaching peak… if things misbehave early on… there is something wrong feeding that cylinder… probably not a cylinder issue. For that we have small cameras… pics of valves and cylinder walls are cool! PP thoughts only, not a mechanic… best regards, -a-

This is where it helps to pull out a wiring diagram for the KX165… BK used to be really good at having their manuals on line… expect the 165 to be able to do everything the 155 can… just make sure the wiring pins on the back are in the same place… the 165 can also show a VOR type display on its face. In the event you lose connection with its display… a crude display of light segments moving roughly… my 165 drives the HSI with GS… my 155 only drives a VOR display… there may be additional details of what is in the box… with the extra numbers and letters it has on its label… really fuzzy pilot memories not an electronics tech… Best regards, -a-

Cool! electro mechanical actuators… if your dishwasher is leaking. It has a solenoid valve that is supposed to be NC when the washer is off… (valve closed) similar with the clothes washer… one for hot, one for cold… but, I digress… the Mooney Parts Catalog calls them Relays… shorter, easy to spell, takes a low current signal to quickly switch a high current source… it sort of relays the pilot’s intention… The pilot activates a nice labeled switch on the panel, that activates a big switch close to the device. many pilots don’t know what the panel switch is actually doing… great tech conversation… best regards, -a-

Also… add to your checklist… walking away from the plane… always look back to see the red flashing strobe isn’t operating… could be a memory issue, or a worn relay… Best regards, -a-

Things to remember… Solenoids and relays are names for the same device an electro magnetic switch… the word solenoid is headed for the dustbin of magic words… they last for decades before failing… each time they operate, a tiny spark occurs, releasing a few atoms into the air inside the case… they are slowly wearing from the first day… they have key details in the part name… normally open and normally closed…. NO NC. they are wired in an interesting way with the avionics relay… this provides the avionics to work in the event the avionics relay fails…. It will fail closed. take a look at how your strobes are wired… if your relays are original… you may have three that are very similar… carry a spare of each the NO and NC… Start, master, avionics, battery selector… plus a few more… PP thoughts only, not a mechanic… Best regards, -a-

KX165 has glide slope… KX155 does not… fancy panel from 1994 has both… let’s invite @Alan Fox to this conversation… Alan is my preferred supply of pre-flown avionics… Keep in mind… the newer BK avionics are rebranded devices built by somebody else… it may be interesting to find out what a KX200 really is… that may explain why it isn’t a slide in replacement… Best regards, -a-

Fantastic report for Our Prop Guy! @Cody Stallings thanks for sharing… Best regards, -a-

Fun times… I bumped into SnowBird via YT… and briefly discussed two vs. three blade props and composite vs. metal… Best regards, -a-

Hey Bonal! long time no see. Best regards, -a-

Only 17 years? feels like I just got here! I’m looking forward to following @Hank’s success! best regards, -a-

My favorite question… 1) get a MooneySpace membership… 2) read often… 3) make friends by claiming your Mooney is faster than Marauder’s… 4) attend a few Mooney fly ins to see who fell for your bold claims about your ship’s speed… 5) search for things you already know the answer to… and find the stuff you thought you knew better… 6) post pics of your part of the Mooney world… 7) get a copy of your ship’s maintenance and the parts manual… 8) get trained…. Mooney specific training… consider the PPP. (Find your Mooney CFI at the MooneyFlyer) Phil, add your website here) 9) remember… new pilots tend to… - fly VFR into IMC - run out of gas experienced pilots - fly into thunderstorms - fly into icing conditions these experiences should be actively avoided, no matter what your experience level is. 10) new ownership of old machines comes with plenty of surprises… use the Ronald Reagan theory of working with something that can kill you… Trust, but verify everything… 11) update your W&B… PP thoughts only, not a CFI… or mechanic. Best regards, -a-

A tremendous amount of information over there… including the few ADSB data points… ending at 300’ msl(?) pilot/owner confirmed to be the deceased…. https://www.wcvb.com/article/plane-crash-beverly-airport-death/65141025 serves as a nice reminder to review the engine out procedures. best regards, -a-