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Should I repaint the intake pipe flanges? (2-day poll)
Poll ended at Mon Jun 12, 2017 9:38 pm
Yes, this is necessary because it may rust without paint 0%  0%  [ 0 ]
Yes, this is necessary 0%  0%  [ 0 ]
Optional - your choice 14%  14%  [ 1 ]
No, get it flying! 57%  57%  [ 4 ]
Other 29%  29%  [ 2 ]
Total votes : 7
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jtwigg
PostPosted: Sat Jun 10, 2017 9:38 pm 
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Today I cleaned up parts of the engine. The gasket material on the air intake pipes was really stuck to both the pipe and the cylinder. In cleaning it off the pipe's flange, I removed any paint that was there. Should I repaint the flange? I'm trying out the Poll feature on this question; please comment and vote! O:-)


Attachments:
File comment: The intake pipes had this same gasket material stuck hard to them.
20170610_011843.jpg
20170610_011843.jpg [ 2.19 MiB | Viewed 6395 times ]
File comment: Cleaning off the gasket material removed the paint
20170610_222239.jpg
20170610_222239.jpg [ 1.59 MiB | Viewed 6395 times ]
File comment: Detail
20170610_222153.jpg
20170610_222153.jpg [ 1.08 MiB | Viewed 6395 times ]

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John Twigg N12055 SN.79 Pittsburgh, PA (KFWQ)
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Rich Brazell
PostPosted: Sat Jun 10, 2017 10:22 pm 
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I really think you need a "clean" mating surface . :P The Lycoming overhaul manual may shed some lite on this ? ???

RB O0
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1albee
PostPosted: Sun Jun 11, 2017 6:37 am 
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You don't paint the inside of the intake tube, so painting the face of the flange is not necessary. The end where the rubber tubes slip over the un flanged part of the tube I don't paint either, same with the oil pan tubes. If you don't hanger and tie down on a wind swept ocean beach you may see some corrosion.
Phil
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jtwigg
PostPosted: Tue Jun 13, 2017 10:26 pm 
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Thanks, everyone, for your votes and comments. If you saw the results, 4 out of 7 votes were to get her flying. So, I've decided not to paint these tube flanges. I sanded them with a fine sanding block and they are very smooth and should seal well. That's good enough for me. Thanks again!

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John Twigg N12055 SN.79 Pittsburgh, PA (KFWQ)
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