Data
While searching the forums for breather examples, I came across this and have the tube in hand to provide dimensions. BTW, This FF-705 and the NAPA 9816 provided by Vans will not fit my M1B install. Not a complaint really. Out of the whole kit, the pile on non-used stuff is mighty small. I may be able to modify the breather parts to fit.
My factory Lyc IO-360-M1B came with a 5/8" 45 deg hose fitting. The Napa hose is 3/4" ID and configured to accomodate a straight 3/4" hose fitting on the engine. Obviously can change fitting. We'll see whats best because that not my only challenge.
Anyway, FF-705 is 3003 5/8" OD .035" wall. It is custom bent on both ends and mandrel expanded at the top end to 3/4" OD to fit the Napa hose.