Lourence 3 Posted December 12, 2021 Share Posted December 12, 2021 Hi, thanks for allowing me to be part of this forum! I noticed a lot of oil at the top of valve cover but cannot see where it is coming from. The gasket looks in order. Is it coming from the breather pipe? I have a 2014 Honda NC750 XD. Thanks in advance. Lourence Link to post
Grumpy old man 4,681 Posted December 12, 2021 Share Posted December 12, 2021 Hi Lourence and to the forum. There's a few possibilities There's the breather that goes to the air filter from the rocker cover the air filter drain pipe you can see from the left side of the bike, it could also be from the rocker cover bolts that have rubber seals. It's easier to take the radiator off to have a look round. Good luck. Ps- Has it just started, have you done any work on it and how many miles has the bike done. 1 Link to post
Lourence 3 Posted December 12, 2021 Author Share Posted December 12, 2021 Thanks for responding! I only noticed it yesterday. I bought it about 5 months ago and it was serviced on 25165 miles in April. It is due for service on 28272 miles and currently standing on 27340. I have taken photos but do not know how to load it on here. Link to post
Grumpy old man 4,681 Posted December 12, 2021 Share Posted December 12, 2021 Hi, if you go to the forum help section there are threads on there telling how to post pictures. Service intervals are every 8000 miles or 12 months. If it's on top of the valve cover it has to be from the breather pipe or the seals on the bolts that hold the valve cover on. If the valves were done on the last Service than perhaps the seals were not put on correctly or the pipe hasn't been fitted properly or damaged. Best advice I can give is take the radiator off and examine even see if you can see anything with a torch. Hopefully somebody else will suggest something. Good luck 1 Link to post
Lourence 3 Posted December 13, 2021 Author Share Posted December 13, 2021 Your advise is much aporeciated! Thanks Lourence Link to post
Steve Case 955 Posted December 13, 2021 Share Posted December 13, 2021 Actually if its on the rear left of the rocker then its probably the breather has not been sealed back up after draining. Get a torch and check behind the radiator to the left of the fan (nearside), you should be able to see the pipe on the same plastic clip as the electrical connectors. It should not be open at the end, I'll see if I can get a piccy of mine. 1 Link to post
Steve Case 955 Posted December 13, 2021 Share Posted December 13, 2021 Nope no can do the piccy Link to post
Rocker66 34,455 Posted December 13, 2021 Share Posted December 13, 2021 29 minutes ago, Steve Case said: Nope no can do the piccy Go to post image (its free) when you have done that click the upload button and select your picture. With choose images button. Once your picture has uploaded you will see a selection of option. Highlight the one that says Direct Link and save it. All you have to do then is paste it in your post. That probably sounds more complicated than it actually is. I hope this helps. 1 Link to post
Lourence 3 Posted December 13, 2021 Author Share Posted December 13, 2021 Thanks Rocker66! 1 Link to post
Steve Case 955 Posted December 13, 2021 Share Posted December 13, 2021 Radiator is in front of my finger, you can see the head steady and cam cover below the pipe and the frame rail to the left Link to post
Lourence 3 Posted December 13, 2021 Author Share Posted December 13, 2021 Steve, I had some oil in it which I then cleaned out. I noticed that the other bigger pipe that enters on the other side of the front top of the head was not connected at all to its other point just under the filter box. Could this have caused oil to leak over some period ot time? 1 Link to post
Grumpy old man 4,681 Posted December 13, 2021 Share Posted December 13, 2021 18 minutes ago, Lourence said: Steve, I had some oil in it which I then cleaned out. I noticed that the other bigger pipe that enters on the other side of the front top of the head was not connected at all to its other point just under the filter box. Could this have caused oil to leak over some period ot time? Yes. That's the oil breather to the air filter. I would say That's your problem. It was the 1st thing I mentioned. 👍 Link to post
Lourence 3 Posted December 13, 2021 Author Share Posted December 13, 2021 Thank you all for your valuable advice, much appreciate! 🙏 Lourence 1 Link to post
Steve Case 955 Posted December 14, 2021 Share Posted December 14, 2021 Sorry yes my description is wrong my pipe was the airbox drain and then there is the breather connecting airbox and cylinder head 1 Link to post
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