Richard Pike
Joined: 09 Jan 2006
Posts: 1671
Location: Blountville, Tennessee
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 Posted: Sat Feb 06, 2016 5:36 pm Post subject: 582 Preventive maintenance - stuff that fails |
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Last fall I had one side of the ignition system quit on the 582. One of the red trigger coil wires had broken at the male connector where it plugged into the coil pack female connector. As good as the Austrians seem to be at building machinery, they are at least that bad at wiring. They use wire that eventually goes soft and gummy. In this case, the insulation had gone bad and allowed moisture to get in, corrode the wire, and it broke.
Three years ago one of the wires from the coil pack had gone mushy on its insulation, the internal wire corroded, had to have it replaced. This is a 1990 version 582, so that gives us an idea of the wiring harness useful life.
A couple weeks ago I pulled the engine, & sat it on the workbench so I could poke around inside the mag end, turned out that both the red wires from both trigger coils had gone mushy on their external insulation. Imminent failure mode. Clipped them off close to the coils, used an Exacto knife to scrape off any corrosion, soldered new wires on, potted the whole mess with much silicone and put it back together.
Also one of the yellow with black stripe wires from the coil packs to ground had a similar problem, the insulation had turned to mush. Replaced that also. Spent the afternoon today putting everything back together on the airplane, replaced all the fuel line as well. Even the good black rubber stuff from NAPA is cheap enough to replace every 5 years. Peace of mind.
Finally got it done and ran it up just before dark, ran nice and smooth, put it away. Just now went out to see if the coolant had sucked itself back into the radiator system, and discovered one of the radiator hoses has moisture around the lower hose clamp. Tomorrow after church guess I will drain the coolant again, and replace that hose.
Details, details, details. When you get them all right, then next years flying season ought to have a lot less drama!
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_________________
Richard Pike
Kolb MKIII N420P (420ldPoops)
Kingsport, TN 3TN0
Forgiving is tough, being forgiven is wonderful, and God's grace really is amazing. |
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