my 92 civic 1.5 16 valve has a problem with oil leaking into the dist cap. dealer said the only reason this would happen is due to an internal seal in the dist. we decided to simply replace the dist itself since we had just done an immense amount of work on it anyways. this is the 2nd remanufac. distributor we have installed and the problem persists. does the seal sound like the problem or could there be another seal or part to help