Rep Power: 0

New to working on my civic, know and work on early 90 jeeps. It is a 03 LX with a 1.7 L SOHC , standard trans. It is leaking from the round black "plug" in the picture. I am looking to see what that is so I can start researching how to fix it. Thank you for any help, kyle

 
Rep Power: 150

When they machined the head, that was access for the tooling. Pretty sure it is just a plug. However, think you will need to pull valve cover to replace it. If all it is doing is seeping, and not dripping, just wipe it off. They usually do that. I always put just a light film of RTV gray sealer on the inner lip. Usually, the are only like a half moon in the head on older Civics and most Toyota's. I bet if you wipe up what oil you see, it may not be leaking as bad as it looks. However, it a easy fix if it is dripping. There is one in the back also. Could be the half moon one I mentioned.

Update..appears they have changed the design. In the fish, that appears to just pop out. In the OD of it is an o-ring. You should be able to replace the o-ring and snap it back in there. I do not have a service manual but was look in my 2006 Civic one and College Honda on line fish.

http://www.collegehillshondaparts.co...-manual-engine

 
Rep Power: 210

it is just a plug to cover the hole where a distributor would normally be,

you dont have to remove the valve cover to replace it, but i would, along with the valve cover gasket

 
Rep Power: 518

Honda sells the whole plastic plug with the O ring, it's less than ten bucks.

Honda part number 12513-P72-003,
USD $8.77 MSRP, (cheaper online).

 
Rep Power: 0

As Ezone says, buy the whole plug, it comes with the O ring. You may find that once you start to remove that plug, it is brittle and breaks apart. Better to be safe than sorry.

 
Rep Power: 0

You should replace the EGR gasket as well. It was less than $2. But I do not see it in your pic. I am new to Civic's so maybe its a different version.

 
Rep Power: 201

The A1 as his LX has doesn't have it there like our A2s do.