Which oil drain plug?

[Paul Eastham]

Just got my quick-drain oil plug and am wondering which hole to install it in -- both seem relatively unobstructed, at least at the moment. Any advice?

This is for an RV-9A w/ O-320 and stock FWF stuff.

[Mel]

On an "A" model, it really shouldn't matter as the sump is relatively level. Just remember, you want to drain the lowest point. Have you installed the exhaust (with heat muffs)? That's probably the biggest obstruction.

[Rick6a]

Originally Posted by Paul Eastham

Just got my quick-drain oil plug and am wondering which hole to install it in -- both seem relatively unobstructed, at least at the moment. Any advice?
This is for an RV-9A w/ O-320 and stock FWF stuff.

I used the plug on the starboard side of my O-320 D1A because it is aft of the plug on the port side, hence it is at a slightly lower location given the posture of my 6A at rest.