Good evening everyone, Was doing the first oil change after 50hrs on my 1969 Arrow 200 (IO360 C1C). I unscrewed the gold cap of the drain plug and pushed up on the inner cylinder to let the oil drain. All was fine and the oil came out, however once I went to let the plug down it just won't come down, see the pics to see the position it was in before draining after cap removal (all the day down) and while it was draining (about half up). I've tried a flathead and allen wrench to push it up and it goes up, and tried to twist it but it just won't come back down from that half up position. Obviously I can't put the new oil in until that cylinder comes back down. Any advice?
Looks like this one below. Scroll down to the part about the Arrow. Looks like you need an adapter tool. https://www.saf-air.com/products/oil-valves.html
So, you are going to have to remove the drain plug and get the chip out from under the O ring. But I ain't no A&P so you will probably render your aircraft unairworthy if you read this.
I think you are correct. This is the shorter version that does not have the integral hose nipple. It’s a 2 piece where you attach the hose nipple after uncapping the drain valve. Then you use the nipple to open the valve, and also to close it, then remove and recap when ready to fill. I remember reading a few years ago that there was so little room when the nose gear retracted that the integral nipple version could get pushed open and lose oil in flight. See if you can find the nipple hiding somewhere in the cabin.
Either way, she gotta come out. And when it goes back in (new or fixed), one would want to consider using some safety wire. It's not like it's hard... https://www.faa.gov/documentLibrary/media/Advisory_Circular/AC_43.13-1B_w-chg1.pdf 7-123
Haha. That pigtail made me look at the scratches on the tops of my hands. Way too many of those (and badly trimmed zipties) lurking in the dark recesses of our planes.
