Sniffle Valve Question

[tstrohmayer]

We've discovered at least two different style sniffle valves (drain valves) installed on RG's. The first is a 90 deg fitting that looks like a standard AN fitting but has a checkvalve built in. The second is a straight brass fitting. We think there might be clearance issues with the latter, so we're trying to determine how many aircraft use straight fittings and how many use angle fittings. The parts manual is not a great resource in this example, because most aircraft do not necessarily have the original fitting still installed. Attached it a photo of the angle fitting. Please let us know what type of valve your airplane has.

[nedclapp]

Attached is a picture of the sniffle valve on my 1977 Cardinal RG (N45359, Serial #177RG1112).


NED CLAPP

[paulmillner]

Hi Tom,

I've seen a few Cardinal RGs over the years, and can only remember one straight fitting... I think the story there was that they'd allowed the engine to be sent back to Lycoming as a core without removing the fitting (always a bummer...) and so substituted a "handy" fitting.

Paul

[apetro2]

Mine has the angled sniffle valve. AP

[bwallen]

My Cardinal RG (N7555V; SN 177RG0851) has the angled valve fitting like the one in your picture.

Bruce Wallen

[dahlin]

Mine is also angled. Don Dahlin 77RG N52637

[lkdysinger]

Mine is an angled fitting.
N53073

[LarryPetro]

Mine, for a 1977 RG, is a right-angle fitting.

The attached image was taken looking up through the nose gear wheel well.

-Larry Petro

[Bruce Hutchings]

I had my local A&P check my airplane and it has the angled outlet. He says it is a 90 degree brass fitting and also angles back toward the pilot's side of the engine (if that makes any sort of difference).

Bruce Hutchings N52061
Lancaster, NH

[lachgn]

Mine is a '76RG and angled.