| Author | Message | ||
     Swordsman |
I just recently re-routed my crankcase breather lines and rigged the catchcan / filter assembly everyone does. Lo and behold, my random little hiccup that I've complained about from the beginning has disappeared! I've been on 4 rides now without a hiccup, when before I was getting at least one per ride. There's a good bit of sludge coming out... after 3 hours of riding today, the cap was half full (you can see the size of the cap in the 1st pic... that's alotta' goo!). I can see how that would cause my bike to splutter, if that much was being routed back into the intake! Anyway, take a look at this and give me your opinions on what I should do. The filter I've installed to release the line pressure is also building up the gunk, enough so that it's blowing out onto my swingarm. I've outlined the area coated, and there was actually enough on there to run down and drip. I had assumed that by mounting the filter on the high side, gravity would pull everything further down the line, but that's not happening (or at least not enough to prevent the overspray). For those of you running a similar setup, do you have any advice to help prevent this leaking? BTW, sorry for the crappy pics, but it's a cheap camera with a fixed focus lens.  Thanks! ~SM   | ||
| 99buellx1 |
Pardon the crappy drawing, but this is what I think you should do. I'm assuming that you have it attached like I have it drawn in 'before'. If you attach some more hose at that point and bring it up, I think it would help to keep the gunk from finding a simple path to the filter and should help with the extra mist that you are getting now.  | ||
| Acejay |
i dont know that there is anything you can do about it. i put a drummer can on my bike a couple of weeks ago and im getting the same thing happen. i have the breather pointed straight up out of the can, and the underside of the air scoop is getting oil blown all over it. just have to wipe it down when you empty the can. by the way - im amazed at how much liquid and white goo comes out of it in one tank of petrol. if nothing else it keeps alot of crap out of your oil i guess. | ||
| M1combat |
What Craig stated is pretty true. It won't completely solve the problem but it'll help a lot. Be careful when you wash the bike. If you get too much water in the filter it'll start puking really bad  . | ||
| Pwnzor |
Get the filter up high, drain tube down low. Problem solved, almost 20k miles on this setup and no mess whatsoever.  (Message edited by pwnzor on November 10, 2006) | ||
| Akbates21 |
hey has anyone tried dumping the crankcase vents into the exhaust to cause a vacuum in the crankcase and make the motor perform better this is a common practice on race cars and it usually works well on dry sump motors just curious to see how it would work on one of our bikes. | ||
| Rocketman |
Probably suck those umbrella valves right out of the rocker box! Rock | ||
| Tiburondriver47 |
Like rocketman said, plus you might pull so oil out with it. Negative pressure in the crank case would be a plus. Just think of all that gunk going into your intake track and increasing the air temp. | ||
| Johntman |
thread hijack... what did you all use to plug up the holes in the airbox when you moved the breather lines? | ||
| Sgthigg |
The plastic plugs that came with my drummer catch can kit. If yours is puking alot of oil...It might be over full of oil. | ||
| Jpgrego |
Quick question unrelated to everything above: I pulled off my airbox yesterday and found that there is a substantial amount of oil and gunk inside the airbox.... enough to create a puddle about half an inch deep at the back of the airbox in the last 7500 miles. Do all bikes blow by that much oil or is mine the exception? If that's normal then I think a catch can should come standard. Patrick | ||
| Tiburondriver47 |
How many total miles are on your bike? It does sound like alot.When mine had 5,000 on it i would have a little in front of the hoses and some going over the front lip on the velocity stack.Thats one reason i went with the open air box setup and catch can. | ||
| Pwnzor |
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| 99buellx1 |
Catch cans cannot come standard. The EPA is the reason that the breathers are routed into the airbox. | ||
| Johntman |
thanks pwnzor! found #2 test tube stoppers tapered rubber plugs. hope they're the right size. they only come in metric and i did the conversions myself. oh well it was only a dollars worth. | ||
| Swordsman |
The EPA is the reason that the breathers are routed into the airbox. So, where are they routed on other bikes? Catalytic converter or something? Excellent diagram Pwnzor! ~SM | ||
| Treadmarks |
Get the filter up high, drain tube down low. Problem solved, almost 20k miles on this setup and no mess whatsoever. Thanks for the drawing Pwnzor. I just did this mod, and went with the American Sport Bike open airbox kit. Big difference is throttle response and drivability. | ||
| Jpgrego |
Bike has a little over 8k total on it and the airbox had not been off since around 500 miles. Patrick | ||
| Pwnzor |
Thanks for the kudos everyone, I try to help whenever I can. Gravity is a powerful tool, and the space where the Evaporative Emissions Canister once sat is coming in handy for a new project I'm working on. I'll post it up if successful. |
