I have a prob that I thought I had remedied but has returned. I have a "98 wideglide. The prob is that after I ride for a bit I notice that the oil fill cap has popped open. I also noticed slight leakage from tappet and pushrod seals. I had thought this was a blowby issue and had recently done a top end rebuild on the engine.( During the teardown found the rings were very worn.) cyls. bored, new pistons and rings, and even earlier had replaced valves, guides and seals in the heads. Hoping someone could point me in the direction to look next. I'm a little puzzled as what else can cause this.