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Type: Posts; User: Gordon Misch

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  1. Replies
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    When rebuilding I had purchased a used -18...

    When rebuilding I had purchased a used -18 exhaust system because I liked the crossover arrangement. I thought it might be more efficient than the stock -12 system. But it was so crowded between...
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    Piper's setup worked well on my -12 both with...

    Piper's setup worked well on my -12 both with O235 and O320. Never any issues with exhaust system cracking. FWIW - -

    I have the Sutton system now and it's been trouble free for...
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    Good point - I've been wondering that also. I...

    Good point - I've been wondering that also. I guess just raise the jackscrew tower. A comparison of TCDS stab limits between 12 and 18 might be revealing, but I haven't made the comparison.
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    Well sir, I flew in Ak for "a while", and now...

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    Yup - been about 2 years now since riding with...

    Yup - been about 2 years now since riding with you, and your plane is a dandy.

    Now then, about that Ford pickup .... Oh wait, that's politics.
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    Yes, it shares that capstrip load with the spar,...

    Yes, it shares that capstrip load with the spar, via shear in the rivets. It also increases the effective moment of inertia of the spar section, thereby increasing the load capacity. It's not...
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    Jury struts are also problematic.

    Jury struts are also problematic.
  8. With the Scott masters cylinders it can help to...

    With the Scott masters cylinders it can help to pump fluid from the wheel with the master ports closed, to take up any flex set into the masters' diaphragms. in other words, to pre-pressurize the...
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    Flew another hour and a half or so today and the...

    Flew another hour and a half or so today and the voltage never wavered. Happy!
  10. Maybe a dumb question re the 8A alternator rating...

    Maybe a dumb question re the 8A alternator rating - is that the max the alternator is capable of producing? Or is that merely a thermal limit, beyond which the alternator would damage its self? ...
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    https://planepower.aero/wp-content/uploads/2018/02...

    https://planepower.aero/wp-content/uploads/2018/02/Troubleshooting-Single-Engine-Externally-Regulated-Alternators.pdf This didn't do me much good, but maybe??

    I have a voltage regulator enroute...
  12. UT75 is recognized in the FAA's NOTAM search...

    UT75 is recognized in the FAA's NOTAM search here. https://notams.aim.faa.gov/notamSearch/nsapp.html#/
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    This is all really interesting. My primary...

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    Well, I added a wire from alternator frame to...

    Well, I added a wire from alternator frame to ground terminal on regulator. The skin on the back of my hand is rearranged but.... Flew it for about an hour and a half and the voltage remained steady...
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    Got it. I'll check them and clean as necessary....

    Got it. I'll check them and clean as necessary. I have a large braided ground and a smaller 8 awg ground, each from crankcase to airframe but separate paths, like Mike MCS recommends. It seems...
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    Yep, will do tomorrow. Thanks! I assume...

    Yep, will do tomorrow. Thanks!

    I assume you mean to retain the lead from the reg ground terminal to airframe ground, and add a new one to alternator frame?

    Edit: As has been said so many...
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    Ok, well, I have egg on my face. Again. 1. ...

    Ok, well, I have egg on my face. Again.

    1. I did NOT measure from an alternator ground post to ground. I measured from the ground terminal on the regulator, and that runs about 0 to 0.2 ohm,...
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    This is the only pic I have right now. I...

    This is the only pic I have right now. I will go over to the airport and try to get a better pic and answers to your questions. Thanks again...
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    https://lh3.googleusercontent.com/J4yGAxKFgZ2rCVCa...

    https://lh3.googleusercontent.com/J4yGAxKFgZ2rCVCaP-xK_dY4ZgEC5lvnY8h2SobcBDFGOYMEB87MHuCHc2Pg6Gtn1fP4j7LHVlAaKAh78DRDNJIdQi2dH3V4OYxfmZwxiYGYV2uAvhthO4scSin33k3hZ1k7Tccg-h5cQ9vJRq5ndoVUQPiPGqSsOgznRi...
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    Thanks Web, all of that makes sense to me, at...

    Thanks Web, all of that makes sense to me, at least in principle. A couple thoughts:

    The system has worked fine for 10+ years, until this summer. So it's wired correctly.

    My regulator is 10...
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    Well, I wiggled the wires at crimps, measured...

    Well, I wiggled the wires at crimps, measured resistance to ground, and voltages as suggested. Each of those things seems right. Then flew for a little while and the system behaved. So - -...
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    Thank you much. I will double check crimps and...

    Thank you much. I will double check crimps and voltages as suggested. What's odd is that voltage is well regulated at 14.3 or 14.4 until the battery is fully charged. Then it starts to spike...
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    Thank you. I did check the regulator ground...

    Thank you. I did check the regulator ground wire at the regulator terminal. I measured between 0.1 and 0.2 ohms. (My Fluke meter zeros at 0.1 ohm.) The Plane Power troubleshooting guide...
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    Overvoltage question

    I have a Plane Power alternator and voltage regulator and Odyssey battery. Beginning last May I started getting over voltage indications of 15-16+ volts. I would pull the field breaker, wait till...
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    I did recently, by 5 deg. I concentrated the...

    I did recently, by 5 deg. I concentrated the change near the tailwheel to reduce elevating the tail (AOA). It's working well.
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