Engine dehumidifier

[TShort]

There are 2 different sizes for the lycoming oil filler ... I forget offhand what they are, but they differ by 1/8" (I think). Your engine may have the other size. Had a similar issue on one I printed for a friend.

[TimO]

Tshort has the answer. I know for sure there are at least 2 sizes, because my IO-540 and IO-390 are not the same. I used rubber stoppers and needed to buy 2 different sizes. Same with the breather tube.

[Dean Pichon]

Originally Posted by rv8ch

Salut Dean - I printed it using "shapeways" web service for my Mattituck TMX IO-360 and it fit perfectly. Any chance it's a problem with his 3d printer or the scaling? If you want to fly over LSGY you can have a look at mine in person.

Hi Mickey,

Thanks for the offer. I'd love to swing by to test fit your cap on my engine, but LSGY is a bit beyond the range of my -4

Originally Posted by TShort

There are 2 different sizes for the lycoming oil filler ... I forget offhand what they are, but they differ by 1/8" (I think). Your engine may have the other size. Had a similar issue on one I printed for a friend.

Interesting. My printed one appears to be roughly an 1/8" smaller than my dip stick cap. I may give Lycoming a call to see if they can shed any light ont this.

Thanks,

[MED]

My IO390 uses 1.125-12 UNF threads for the oil filler tube. Not sure if that is what you need. I believe the other size is 1.250-12.