smoke

in the right side of the engine of my xj550 seca, there is a hose that goes to the air box. i have pods and that hose its not ´´plug´´ so when i start the engine for that hose start to throw smoke. is the engine bad? i meant do i need to rebuild the engine?
why is the smoke. what can i do to desapper that.
if i close downt that hose what could happend??


thanks!!

 

It's called "blowby" and comes originally from the rings. You could make a small "catch can" or vent it away from your back tire. Don't plug it !!

 

**EDIT** Sorry about the oversize picture in the previous post
When I used to race we did what TIME mentioned, make a catch can. You can get quite inventive as well as comical if you want. Just get a length of hose, black, clear neon, whatever and route it back to a conatainer that is securely mounted to some where on the frame.
Low tech:


High tech: sort of :roll:

Hope this gives you an idea of what we're talking about.


Cheers, Graham

 

jorge - as TtR said, don't plug the hose because that oil needs a place to go and if you try plugging it you will likely start to foul plugs and eventually carbon up your valves which will make the situation worse.

Pods often contribute to the blowby condition because you are constantly revving the engine to make up for its poor idling characteristics. If I were you, I would put up with it until I could no longer stand it for whatever reason before I rebuilt the engine.

Even at $4.00 a quart, oil is still pretty cheap. Just make sure you keep an eye on your oil level. You are likely consuming more oil than normal but I doubt that you will use more than a quart or two per thousand miles even with severe blowby. That's still a heck of a lot cheaper than a rebuild.

 

The standard "fix" for the breather hose (that's what that is, your crankcase breather which is why you can't plug it) is a mini-pod filter for the breather itself.

They're commonly available, and look just like a miniature version of the pod filters on the carbs.

Some smoke from the breather, especially right after start-up, is normal. If you had an airbox, it would be piped back in and burned with the intake mixture and you'd never see it.

 

so i searched on internet and i saw a lot of catch oil hand made.
i puted some creative and i do this..
hope it will work i dont have time to ride my bike yet.
critics please...

 

Can you feel it blowing out the end of your pipe on the left. If that's an oil/water seperator or air dryer I think it has to have XX psi to function properly.

 

Honestly? I'm afraid it won't work.

First off, Max-X is right about the pressure required for a device such as that to operate;

plus we've had a couple of folks who added a long hose to their breather to pipe it out the rear and it ended up effectively restricting proper breathing. What you've created may cause your bike to not run properly.

What you need looks like this, and you would attach it directly to the breather outlet or at the end of a pipe no longer than the original hose:

 

Fitz is right, that filter is a water trap separator that works on a cyclone principle, it requires high volume flow to cause the air to swirl around in the bottom bowl, flinging water droplets to the outside, which then collect in the bottom. They usually have a sintered metal or ceramic filter inside as well but that will only take out "the rocks", the oil vapor in suspension (and the smoke) will just stay in the air.