Buell Forum / Buell XB Forum / Do-It-Yourself Buell Mods / How-To: Crank Case Breather Mod (with pics)
| Posted: 30 Jan 2009 06:09 | [?] |
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Hi.
Great info and help. Just did the mod this evening. I'm not technically savy when it comes to this stuff, but i got it done. Took it for a ride and feels better. One question though, i was sitting at some lights for 5 mins and when i looked down at the filter it had smoke/steam/what ever coming out of it. Is this normal if it just idles... i'm gessing the gasses that once went back to the engine. Any confirmation would be great and again, thanks for the help. |
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| Posted: 31 Jan 2009 21:51 Last Edited By: Urban_Assault | [?] |
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Mine does that too at idle, especially when it's cold out. (Just got the bike in October, so it's brand new)
It shows up more when it's cold, because the moisture that builds up in your crankcase is evaporating out. (Just like seeing the moisture in your own breath when it gets cold, or steam off a cup of coffee.) Some of it is also oil that has reached thermal viscousity point, but again... it's pretty normal. If it starts pouring tons of smoke out, then there's likely a problem. But if it's just a little, no worries... Mostly just steam and evaporated oil. You can actually hold your hand over the smoke for a few seconds, and it will get wet from all of the steam. A little slimy from the small amount of oil, but mostly just wet. If it becomes too much oil, it will have the typical "oil burning" smell that old smokey cars have. -Tim |
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| Posted: 08 Feb 2009 01:08 | [?] |
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Just curious about the length of the tubing and the change in elevation the oil has to travel.
What i mean is the tubing comes down first, bends and has a slight up hill climb before the big bend down. I have opened the screw and nothing has come out and i have driven it over 100 miles, or isn't that enough. Again, just curious. Justin |
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| Posted: 08 Feb 2009 01:26 Last Edited By: Urban_Assault | [?] |
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I actually haven't had much in mine either. A few drips of water, but otherwise nothing. I've heard mixed results from everyone else. Some have to drain it every gas stop, others don't.
I'm guessing mine isn't as bad because it's a brand-new motor. If the rings are settled correctly and not worn out, there won't be much blow-by past the pistons and less burnt oil to vent out. That's just my theory, anyone else have input? Justin, how many miles are on your engine? Also, on mine I don't have an "up". It goes straight back across where the filter is, then down. I avoided having an "up" because of the very reason you just pointed out. The filter "T" is also angled slightly upward, to make sure no oil drips down through it. -Tim |
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| Posted: 08 Feb 2009 07:07 | [?] |
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Hey Urban.
Firstly i have a 2005 XB12S 13000 miles. With the filter on the T joint i did the same thing and angled it slightly up incase of oil running in to it. Here's a couple of pics how i routed it, basically like this mod. (Need to get some black ties) Justin 
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| Posted: 25 Feb 2009 01:54 | [?] |
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Not to thread jack but what pipe it that on the re lightning in "chris_xb12s" post?
Aaron |
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| Posted: 26 Feb 2009 04:37 | [?] |
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| Im confused as to why everyone replaced the initial breather hoses instead of just connecting them to the T connector and then running them back. Seems to save hose, and cut out a step to me. | |
| Posted: 26 Feb 2009 05:40 | [?] |
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So yeah, that was totally easy. I completely blame you guys for confusing me up.
I left the initial breather hoses in place, just cut off about 2" off the one with the nylon wrap. Connected them to the T connector and ran a hose from there back between where the subframe connects to the frame. I placed my filter right by my left heel guard and the drain hose runs behind the the left peg mount totally hidden until I move it out to drain it. I got a blue filter so it matches my color scheme. But ya, you guys and all ur numbers and measurments and shit confused the fuck outta me. All anyone needs to know is get shit in 3/8". Period. Im going to write up a dummy version for us "Mechanically Challenged" folks. |
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| Posted: 26 Feb 2009 05:47 | [?] |
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Quote:
Im confused as to why everyone replaced the initial breather hoses instead of just connecting them to the T connector and then running them back. Seems to save hose, and cut out a step to me. Yeah, under the airbox, I used the stock hoses into a T and ran back except added one of the cool little air filters halfway down the "drain" line. |
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| Posted: 26 Feb 2009 06:41 | [?] |
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Heres a cell pic of my setup.
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| Posted: 26 Feb 2009 12:49 | [?] |
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Quote:
Not to thread jack but what pipe it that on the re lightning in "chris_xb12s" post? Aaron Its a piece of fuel injector hose mate. Got it from my local auto parts shop as they didnt have any standard fuel pipe in the right size. Chris |
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| Posted: 26 Feb 2009 15:00 | [?] |
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| lol He means ur exhaust man =P | |
| Posted: 26 Feb 2009 16:37 | [?] |
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ha ha sorry, i got that wrong!
Its a stealth engineering pipe, hand made here in the UK. search on youtube and it should come up. Chris |
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| Posted: 26 Feb 2009 23:43 | [?] |
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| Chris that is a nice pipe! You dont got frame pucks on that beast? Youll be kicking urself if u put her down and didnt drop that $50 | |
| Posted: 27 Feb 2009 00:11 | [?] |
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and what is this mod excactly good for again?? if you don't mind me asking??
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| Posted: 27 Feb 2009 04:10 | [?] |
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I have frame pucks ready to fit. its still a bit cold to fit them as it says the glue works best in slightly warmer conditions. I'll get some new pictures up soon.
Chris |
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| Posted: 27 Feb 2009 06:12 | [?] |
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Quote:
and what is this mod excactly good for again?? if you don't mind me asking?? Plenty of How to's to be found by searching Breather reroute. As to what it does....Reroute worth doing? and here's a LENGTHY discussion about it....DIY Breather Reroute |
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| Posted: 12 Apr 2009 23:54 Last Edited By: chase12s | [?] |
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Quote:
Dont know if you can see in this picture but i run a similar set up. Providing you drain the oil often enough there seems to be no problems. I usually check it every 250 miles.  Nice colors, I have the same. Which exhaust is that??? |
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| Posted: 13 Apr 2009 04:57 | [?] |
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Quote:
Nice colors, I have the same. Which exhaust is that??? Earlier, Chris said, "Its a stealth engineering pipe, hand made here in the UK. search on youtube and it should come up." |
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| Posted: 13 Apr 2009 05:21 | [?] |
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| but can I actually buy one in the U.S.? | |
| Posted: 13 Apr 2009 05:39 | [?] |
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| It's hand-made so I doubt it. Might get one of the UK guys, maybe Chris XB12S, to get one and send it to you. Or if you're really determined, you might check out UKBeg and get connected through there. | |
| Posted: 14 Apr 2009 02:50 | [?] |
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| Did not read all the comments, but a small hint to do a pro job on sealing the holes left in the filter canister. Use a couple of covers used to seal holes in SS sinks, these fit perfect after you enlarge the original holes a little, it look smart too...you can find these in any hardware store,,, can post some photos later if any one is interested, but I am over seas at the moment. | |
| Posted: 07 May 2009 17:42 | [?] |
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Awesome write up and response's. makes it so easy for the rest of us. I'm going to do it tonight and I'll get back to you guys tomorrow to see how it went.
Thanks again! 
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| Posted: 08 May 2009 00:37 | [?] |
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| can someone please confirm.. 5/8" or 3/8" ? I'm about to go buy the things but one write up as 3/8" and one has 5/8" | |
| Posted: 08 May 2009 01:15 | [?] |
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| I've still had a little piece of the original off my bike hanging in the garage. It's 3/8". | |
| Posted: 08 May 2009 03:35 | [?] |
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You are the man Stevenc150. thanks!
I was at the store checking this thread on my blackberry and I bought the 3/8! hopefully tonight or if not tomorrow I can install! -LOK |
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| Posted: 08 May 2009 17:34 Last Edited By: meetch | [?] |
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I just did this mod and yes.. what a difference. Thanks Guys! I had a little bit of a hard time routing the hose to the rear and am still not sure if its in the best spot. Anyone have any photos of how they routed the hose out the rear?
Thanks |
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| Posted: 08 May 2009 18:20 | [?] |
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Quote: Did mine like CITYXSD did in the thread below. Only thing is I placed the small air filter so it's visible and routed the end of the hose all the way down and under the footpeg leaving it open.
Anyone have any photos of how they routed the hose out the rear? - 3rd post from the top of This Page. |
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| Posted: 08 May 2009 18:43 | [?] |
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| Thanks bro! | |
| Posted: 18 May 2009 18:29 | [?] |
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I just finished my breather reroute. I tried to keep it hid and keep the bike looking stock. I hid the breather filter under the seat by the shock and ran the hose down the swing arm and by the brake line. This is just another option to add to the many ways to run the reroute. Let me know what you guys think of this positioning.
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