Thedude Posted January 6 Author Report Posted January 6 1 hour ago, TaildraggerPilot said: “Blue” paper shop towels will scratch paint pretty easily. I’d stick with terry cloth with your aviation-grade cleaner of choice. Oh that's good to know, thanks for the heads up
Hank Posted January 6 Report Posted January 6 1 hour ago, Thedude said: Oh that's good to know, thanks for the heads up 3 hours ago, TaildraggerPilot said: “Blue” paper shop towels will scratch paint pretty easily. I’d stick with terry cloth with your aviation-grade cleaner of choice. I buy bulk packs of plain white terry cloth washcloths and hand towels just for this. Washcloths for the windshield, or for scrubbing, and the hand towels for wash wax all. Used to get them at Kmart, now have upgraded to Walmart, Sam's or wherever i see them.
takair Posted January 6 Report Posted January 6 3 hours ago, Thedude said: Gotcha, this is the best photo I have at the moment. Hmm. I’m surprised at the 90 degree at the end. Seems many Mooneys have a less drastic angle. That said, you might also look upstream. You have what may be a leak at the ball joint where the tailpipe stack attaches to the muffler. I see some streaking in there. Could be nothing, but your belly lead deposits seem a little thicker than I would expect if the exhaust was clearing the airframe adequately. 1
TaildraggerPilot Posted January 6 Report Posted January 6 1 hour ago, takair said: Hmm. I’m surprised at the 90 degree at the end. Seems many Mooneys have a less drastic angle. That said, you might also look upstream. You have what may be a leak at the ball joint where the tailpipe stack attaches to the muffler. I see some streaking in there. Could be nothing, but your belly lead deposits seem a little thicker than I would expect if the exhaust was clearing the airframe adequately. Just about every pre-J Mooney has the tailpipe bend, unless there’s a powerflow exhaust fitted.
Thedude Posted January 6 Author Report Posted January 6 2 hours ago, takair said: Hmm. I’m surprised at the 90 degree at the end. Seems many Mooneys have a less drastic angle. That said, you might also look upstream. You have what may be a leak at the ball joint where the tailpipe stack attaches to the muffler. I see some streaking in there. Could be nothing, but your belly lead deposits seem a little thicker than I would expect if the exhaust was clearing the airframe adequately. Should I just look for cracks/gaps or is there a particular technique to finding issues in the exhaust?
Thedude Posted January 6 Author Report Posted January 6 1 hour ago, TaildraggerPilot said: Just about every pre-J Mooney has the tailpipe bend, unless there’s a powerflow exhaust fitted. This is a 79 J model
Justin Schmidt Posted January 6 Report Posted January 6 2 hours ago, Hank said: upgraded to Walmart Is Walmart really an upgrade 1
TaildraggerPilot Posted January 6 Report Posted January 6 21 minutes ago, Thedude said: This is a 79 J model Ok, I’ll see myself out….
Thedude Posted January 6 Author Report Posted January 6 9 minutes ago, TaildraggerPilot said: Ok, I’ll see myself out…. Idk maybe there's something weird about my plane, just wanted to clarify. It's also earlyish because I think the J series started in 77.
Hank Posted January 6 Report Posted January 6 1 hour ago, Justin Schmidt said: Is Walmart really an upgrade From Kmart??? Sure it is! But the washcloths are thinner and lighter weight. 1
Thedude Posted January 7 Author Report Posted January 7 Just now, Hank said: From Kmart??? Sure it is! But the washcloths are thinner and lighter weight. Idk my Walmart feels like a an active zombie movie. But I haven't been to a Kmart in forever.
LANCECASPER Posted January 7 Report Posted January 7 11 minutes ago, Thedude said: But I haven't been to a Kmart in forever. I bet you haven’t . .lol 1
Fly Boomer Posted January 7 Report Posted January 7 10 minutes ago, Thedude said: Idk my Walmart feels like a an active zombie movie. But I haven't been to a Kmart in forever. Nor will you. After a long-suffering decline, they died a couple of years ago.
takair Posted January 7 Report Posted January 7 3 hours ago, TaildraggerPilot said: Just about every pre-J Mooney has the tailpipe bend, unless there’s a powerflow exhaust fitted. I suppose it could be both ways. Maybe depends on overhaul. This is the third one I’ve had on mine with a straight shot. 1
Hank Posted January 7 Report Posted January 7 Mine was replaced a few years ago, memory says the old one was shorter. 1
takair Posted January 7 Report Posted January 7 3 hours ago, Thedude said: Should I just look for cracks/gaps or is there a particular technique to finding issues in the exhaust? Maybe it’s just the image, but the circled area looks to be also covered in grey exhaust, which makes me wonder if you don’t have something going on under the cowl. If that grey wipes off, I would suggest a look under the cowl at the junction between muffler and tail pipe. Some soot is normal, but the pattern on yours seems a little off. 1
EricJ Posted January 7 Report Posted January 7 3 hours ago, Fly Boomer said: Nor will you. After a long-suffering decline, they died a couple of years ago. Actively destroyed by Eddie Lampert for the real estate value, who then did the same to Sears. 1
cliffy Posted January 9 Report Posted January 9 On 1/6/2026 at 5:16 AM, skykrawler said: The screw is typically a #8 type A sheet metal. Often a stainless steel truss head is used. https://www.aircraftspruce.com/catalog/hapages/tha.php?clickkey=11590 Sorry to disagree but those screws go into what are called "Tinnerman" nuts. These are formed and bent sheet metal nuts that use #8 "Type B" blunt end screws Because the (technical term) thread/pitch of the proper screw is different than a plain pointed end sheet metal screw Check the Parts manual (right here on MS) for the proper screw to use. 1 1
N201MKTurbo Posted January 9 Report Posted January 9 On 1/6/2026 at 6:21 PM, Hank said: Mine was replaced a few years ago, memory says the old one was shorter. You could rig that pipe a lot higher. Rig it up tight to go fast, down low for less CO (maybe)
skykrawler Posted January 9 Report Posted January 9 Parts manual identifies https://www.aircraftspruce.com/catalog/pnpages/8X1_2-B-RO-PH.php type B with truss head https://www.aircraftspruce.com/catalog/hapages/trusstypeb.php 1
Thedude Posted January 13 Author Report Posted January 13 On 1/6/2026 at 5:39 PM, takair said: Maybe it’s just the image, but the circled area looks to be also covered in grey exhaust, which makes me wonder if you don’t have something going on under the cowl. If that grey wipes off, I would suggest a look under the cowl at the junction between muffler and tail pipe. Some soot is normal, but the pattern on yours seems a little off. I put on some gloves and nothing came off when I ran my hand over the exhaust, so it seems alright. As far as I can tell.
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