carusoam Posted November 5, 2014 Report Posted November 5, 2014 Probably a M20B specific issue, I think. Leaking rivets are a relatively easy fix. Proper selection of materials and expertise helps... Best regards, -a- 1 Quote
ryoder Posted November 5, 2014 Author Report Posted November 5, 2014 What part number is the gasket for the fuel senders? I'd like to order it with my new ignition switch. Yeah another problem, the switch is not working right and aircraft spruce has a replacement for $409. Quote
N601RX Posted November 5, 2014 Report Posted November 5, 2014 This one is much cheaper and has matching locks for the doors. http://www.aircraftspruce.com/catalog/elpages/igswitches2.php?clickkey=5735 Quote
carusoam Posted November 5, 2014 Report Posted November 5, 2014 It only takes a decade, but you will know your airplane inside and out! Best regards, -a- 1 Quote
Mooneymite Posted November 5, 2014 Report Posted November 5, 2014 What part number is the gasket for the fuel senders? I'd like to order it with my new ignition switch. Yeah another problem, the switch is not working right and aircraft spruce has a replacement for $409. I'm not sure which ignition switch you have, or what's wrong with the original, but when mine wouldn't pass the AD check, I found out that Bendix makes repair kits that are about 1/4 the cost of new and are very easy to install/repair. The kit wasn't easy to find, but they are available. I think I still have the pictures I took of the installation steps. Quote
ryoder Posted November 5, 2014 Author Report Posted November 5, 2014 I need push to start due to having the starter vibrator. This doesn't seem to have that or am I missing something? The problem is that it doesn't start the engine when you push in. This is what I was told to buy by my mechanic. http://www.aircraftspruce.com/catalog/elpages/bendixswitches.php This one is much cheaper and has matching locks for the doors. http://www.aircraftspruce.com/catalog/elpages/igswitches2.php?clickkey=5735 Quote
N601RX Posted November 5, 2014 Report Posted November 5, 2014 It works with either the vibrator or impulse coupling. Here is the wiring diagram for both.  http://www.aircraft-spruce.com/catalog/graphics/A-510-2-INSTALL-DIA.jpg Quote
Andy95W Posted November 5, 2014 Report Posted November 5, 2014 It works with either the vibrator or impulse coupling. Here is the wiring diagram for both. http://www.aircraft-spruce.com/catalog/graphics/A-510-2-INSTALL-DIA.jpg Just because it works does not make it right. Our Mooneys are designed to have the 2-position start function, the first position to energize the vibrator and the second position to engage the starter motor. This allows you to hand-prop the engine to get it started with an energized, retarded spark to the left magneto only. Without this, you will never be able to hand prop your Mooney unless you disconnect your starter motor and hold the switch to the start position. Interestingly, 1962 and earlier M20B and C models had this type of ignition switch, in addition to a switch to disconnect the starter solenoid. I would not sign off the installation of this switch without the additional disconnect switch to the starter solenoid, and a POH supplement, and I am by no means the biggest stickler out there... I have IA friends who would demand that this is a major alteration to the design of the electrical system (read: field approval by the FAA). And they would still want to see the additional switch installed. So why not just install the proper switch to begin with, and that way we won't even have to bring up the whole PMA thing, either? Quote
Andy95W Posted November 5, 2014 Report Posted November 5, 2014 This is what I was told to buy by my mechanic.http://www.aircraftspruce.com/catalog/elpages/bendixswitches.php This is the correct switch. There is a Bendix Service Bulletin that specifies this part number as the replacement for our older ones. Quote
carusoam Posted November 5, 2014 Report Posted November 5, 2014 Andy, Have you ever hand propped your 180 horses? Speaking of things you can, but don't want to do... It may be one of those things that has moved into the too high risk category, with too little reward. Just wondering, -a- Quote
Andy95W Posted November 5, 2014 Report Posted November 5, 2014 Anthony, The year was 1992. I had just bought my first Mooney, an M20C, in Columbus, GA. After a quick complex sign off from a CFI friend of mine, I embarked on my cross country flight to get the airplane to Fort Hood, TX. (Looking back, I can see with 20/20 hindsight the links in the chain coming together.) Somewhere over Louisiana, as I was getting ready to stop for fuel, as it was starting to get dark, I popped the over voltage relay on my alternator, which took the alternator off line. With lights on, it didn't take long for the battery to be almost dead when it came time to leave. At night. In an unknown airplane. Stay for the night to troubleshoot the problem? Nah, it'll probably be okay. (More links in the chain.) Found a CFI to sit in the seat and hold the brakes, after reading the POH for the first time to learn how to hand-prop this new-to-me airplane. BTW, I had never hand-propped an airplane before in my life. (More links in the chain.) Successfully started the engine, swapped seats with the CFI (of course the parking brake didn't work - that was kinda hairy) and took off for my new home airport. Ammeter seemed okay, so I didn't think much of it till later. Unbeknownst to me, but luckily, the over voltage relay is designed to reset itself when power is removed (master switch turned off). God protects fools and small children, and certainly kept me safe that night. And no, I wouldn't do that again. That Mooney took care of me in ways I'm only just now beginning to realize. That actually wasn't the stupidest thing I've done in an airplane. The stupidest thing was letting a King Air pilot talk me into running dangerously low on fuel in a C-172. 2 Quote
carusoam Posted November 5, 2014 Report Posted November 5, 2014 I admire your logic to have somebody help you. I tried hand propping my C at least once... I took the lack of result as a sign from God. It is a really powerful engine, it is very close to the operator, who is a bit off balance, while doing this... The damage it can do is tremendous. I'd rather fly VFR into icing IMC without a proper rating...while smoking a pack of filter free Luckies...? Back in the day, it was different for some reason, -a- Quote
Andy95W Posted November 5, 2014 Report Posted November 5, 2014 Yeah, I won't do that again. Funny the things we can rationalize when we're young. Hand-propping with the Mooney's Shower of Sparks requires 2 people. One person has to hold the ignition switch in the start position (but not pushed in- that engages the starter). This energizes the shower of sparks, retards the spark from the left magneto to 0° BTDC, and grounds the right magneto. Without this, you will be trying to start the engine without a boosted spark at 25° BTDC- simply not possible. Ah, to be older and wiser... at least hopefully wiser. 1 Quote
Mooneymite Posted November 5, 2014 Report Posted November 5, 2014 Hand-propping with the Mooney's Shower of Sparks requires 2 people.  And at least "some" battery power, right?  Most people are disuaded from hand-propping a Mooney after they discover they can't disengage the starter....  Hand propping isn't for the weak-willed! Quote
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