Originally Posted by bamakrw
Maybe that explains why oil is always so filthy after 1000k miles???
I plugged that hole up with a cap. What kind of plug in fliter? I'm not sure that I know what your talking about and most of the guys in the auto parts stores do not either. At least around here they don't.
There are several ways to do it fix your problem.
1.) Unplug your hole, put a plastic elbow in the grommet, put a piece of hose on it, and then put one of the filters like goes in the side of the factory air cleaner on it. You will just have to zip tie it up. Your auto parts store should have these. I know Fram makes 'em. Or you could leave that filter off, and stop by a shop that sells Harley parts and get a mini chrome crankcase filter. They are about 10 bucks. You can just put it on the end of the hose with a clamp.
2.) You can leave the hole plugged and find a breather oil cap to fit.
Here's a link that shows the kind of stick in breather that I was talking about. It is part #K in the chrome dress-up kit. Of course, it is more bling than you need, but you should be able to get a regular one at most any good autoparts store, because lots of cars in the 60-70 range had 'em.
Here's a great pic of what they look like.