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03-30-2020, 05:43 PM
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Join Date: Aug 2005
Location: Dallas/Ft Worth, TX
Posts: 5,665
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Quote:
Originally Posted by Kyle Boatright
Walt, what glue do you recommend? A tiny drop of superglue or??
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I usually use pliobond or 3m contact cement, dries quick, is flexible, bonds to rubber and metal.
__________________
Walt Aronow, DFW, TX (52F)
EXP Aircraft Services LLC
Specializing in RV Condition Inspections, Maintenance, Avionics Upgrades
Dynamic Prop Balancing, Pitot-Static Altmeter/Transponder Certification
FAA Certified Repair Station, AP/IA/FCC GROL, EAA Technical Counselor
Authorized Garmin G3X Dealer/Installer
RV7A built 2004, 1700+ hrs, New Titan IO-370, Bendix Mags
Website: ExpAircraft.com, Email: walt@expaircraft.com, Cell: 972-746-5154
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03-30-2020, 08:24 PM
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Join Date: Apr 2013
Location: Ventura, CA
Posts: 151
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Grease
Quote:
Originally Posted by Kyle Boatright
Walt, what glue do you recommend? A tiny drop of superglue or??
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I was taught to use grease to hold the rubber couplings in place while installing the magneto. BTW, a buddy had one fall inside an engine once when he pulled the mag. He took a blind stab with a scribe and brought it up on the first try. |
03-30-2020, 08:35 PM
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Join Date: Aug 2005
Location: Atlanta, GA
Posts: 4,208
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Quote:
Originally Posted by JDeanda
I was taught to use grease to hold the rubber couplings in place while installing the magneto. BTW, a buddy had one fall inside an engine once when he pulled the mag. He took a blind stab with a scribe and brought it up on the first try.
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I've used the grease trick and obviously didn't have the right grease. The little couplings just fell right off. I must have picked them up off of the floor and cleaned one or both 3 or 4 times only to have the same thing happen again and again. Next time, I'll try one of the glues Walt suggested.
__________________
Kyle Boatright
Marietta, GA
2001 RV-6 N46KB
2019(?) RV-10
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03-31-2020, 06:37 AM
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Join Date: Jan 2005
Posts: 1,024
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Newer mag drives have a slot machined into the cup that holds the rubber drive isolators. New style mag drive rubbers have a rib on the rubber that fits into the slot on the drive to hold them from falling out of the drive. So if you have a newer engine of newer drives you don't have to worry about losing the drive rubbers. Always best to be cautious till you know for sure. Anytime, I dropped one off the drive into the engine ,I was able to get it with a pair of mechanical fingers after about a 1/2 hour of trying. Frustrating but possible!
Good Luck, Stay Home and Stay healthy,
Mahlon
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"The opinions and information provided in this and all of my posts are hopefully helpful to you. Please use the information provided responsibly and at your own risk."
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03-31-2020, 07:54 AM
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Join Date: Aug 2009
Location: Lemoore, CA
Posts: 286
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Magneto Drive Modification
I had my magneto "modified" by my friendly, local overhaul facility to the new configuration. They could, because my engine is now considered "experimental" and not bound by certification constraints.
Your local shop may not be willing to jump across that gap to the "dark side", but if they do, you'll be much more confident of a proper install, without losing the drive coupler, when the time comes.
YMMV
David Howe
Harmon Rocket II S/N 002
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