Rgbeard
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- Aug 26, 2017
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- Phoenix, AZ and Ensenada, Mexico
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rgbeard
Oil filters - the toilet paper of aviation hoarding
It is, essentially, toilet paper in a tin-can.
Oil filters - the toilet paper of aviation hoarding
I paid $180 for 3 108-2’s. I’ll do that any day over reusing filters.
Yep. A couple hundred in filters is a lot cheaper than an engineI've been alarmed at how many in my circles are stretching their filter interval to 100 hours. I want to know about part numbers sloshing around in my sump far sooner than that.
I've been alarmed at how many in my circles are stretching their filter interval to 100 hours. I want to know about part numbers sloshing around in my sump far sooner than that.
Do piston helicopters use chip detectors in the engine? I thought they were only in the transmission. Chip detectors are a magnetic plug with two contacts in the oil that fire a light if they get bridged with a chip or enough small bits of metal. In aircraft engine filters it's normal to find enough iron powder to make a ball the size of a BB, at least, and that much would easily set off the detector for no good reason. The cylinder walls, rings, cam and lifters and gears and other stuff are constantly shedding tiny bits. It's why engines wear out, and it's why we use good filters, to trap that stuff and keep it from reaching the machinery that the oil keeps separated, where it would cause scoring and accelerated wear. The old screens allowed that stuff through.Off topic but I’ve often wondered why there isn’t a good source for adding chip detectors like helicopters and turbines use. Seems like it would be a no brainer, I’m sure there’s a valid reason why they aren’t the norm for our small piston engine but I’d install them if it was.
I've washed out a lot of filters that gave me that much. Lycoming says this:I’ve personally never seen enough metal to make a BB outside of the first 25 hours during a break-in, but that’s just personal experience.
This. Chip plugs are not wear indicators, they're failure indicators. Piston engines wear out where turbines and gearboxes do not. They tried with a "fuzz burner" type chip plug but you were always zapping the plug.In aircraft engine filters it's normal to find enough iron powder to make a ball the size of a BB, at least
I suspect there are plenty of filters out there, but hoarders took up too much of the supply, and now we have a snowballing effect.
I’ve personally never seen enough metal to make a BB outside of the first 25 hours during a break-in, but that’s just personal experience.
Exactly. It's amazing how much stuff washes out of that media when you cut it out and rinse it in clean solvent. Let it settle, slowly pour off most of the solvent, and use the magnet.Are you actually washing out the filter media or just looking in the pleats? There's a big difference. I've never cut a filter, washed the media, and had a magnet come back clean. The old pressure screens would just let that stuff pass through and sometimes you'd find it embedded in the bearing shells at overhaul time.
I ordered two 48103 from Spruce on 11/19 and was advised today that they’re shipping.
I ordered two 48103 from Spruce on 11/19 and was advised today that they’re shipping.
good to know... we'll be on the lookout for the package to appear (briefly) at your door...
Will do!Be sure to ring the doorbell when you porch-pirate me. I will have coffee and donuts ready.
I ordered a 6-pk on Oct 5 and they shipped on 12/22. Maybe the gap between order and shipment is slowly closing....Ordered AA48110-2 TEMPEST OIL FILTER 6 PK on October 28, 2022, shipped 12/30/2022.
Normal? What’s that even mean these days?Perhaps things are starting to get back to normal.
Be that if you buy on eBay or order on Amazon you stand a good chance of getting a counterfeit filter.