Bill,
If it's coming in from the pendant line pipe or the self bailing cockpit hose, it may not be something that needs immediate attention for the little time we have left in the sailing season, but you really don't know that for sure. Sometimes rain water can come in from somewhere up above and flow down to the lowest point in your boat which is the bilge. If this is the case, it is imperative that you locate the leak and try to stop it.
Some day you're going to need to replace that self bailing hose and the best way to get at it is to cut in an 8" Beckson deck plate in the center of the inside transom like I did. I helped my friend Walter cut one in on his O'Day 192 years ago when I helped him install a swim ladder on his boat. It not only allows access to your self bailing hose, but also your gudgions, engine bracket bolts, stern light wire, and swim ladder. I use this deck plate to help me get my outboard charging wire into an electric terminal block near my lazarett hatch which is mounted on the rear bulkhead behind a PC mouse pad cover. Sometimes I unscrew the cover and just take a peak into my bilge to see if it's dry. If it is dry, I'm happy.
If it turns out that the water is coming in from under the gunwale molding, there is no fast easy fix to this leak. You need to remove the rubber and the gunwale, clean under it, and caulk every screw head and screw hole and reinstall it.
At any rate, you need to get in the cabin and feel around for moisture and look for water marks in the hull where bolts come through. Have someone run a garden hose over certain parts of the deck. Believe me, these boats shouldn't leak a drop.
One of our club members owns a little 15' wood lapstrake tug boat with an inboard diesel engine made back in the 1950s. He backed it down the ramp last week for the first time this year and that boat started leaking gallons of water. The bilge pump was trying to pump it out and couldn't stop. Those old wood hulls need to swell up.