How-To: Crank Case Breather Mod (with pics)
- Thread starter Urban_Assault
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OK So some help here would be greatly appreciated. This may be long so sorry in advance.
Earlier this year as the season started, I thought I had gotten a leak in my primary and took the bike in to get the primary gasket replaced. I get a call later that day to come pick up my bike. The shop manager says my primary seal is fine, and that im blowing oil out of my air box because of whatever mod I have in there(Re breather). So its slowly dripped oil for the next month... The other day I got tired of it and tore open the airbox to check my lines and reverse the breather if needed. There was no oil in my air box what so ever. But I still reversed the re breather at least temporarily to see if that was the problem in fact.
The only problem was I did it WRONG! OH SHIZZZ! instead of routing the two hoses back out up into the air box I plugged
The left arrow hose into the where the right arrow hose is without a breather line inbetween. ZOMFG WHAT DID I DO!!!
I took it out for a short clip to the bank to see how it would run before I realized my mistake, and was blowing oil like fuckin crazy.
So I tear back into the air box, see where I fucked up, and re did the breather re route after checkin that all my lines were clear, and no pinches.
Now the bike isnt blowing oil as bad, but there is still a leak. And it seems a bit worse. So Im like WTF do I do. Do I take my into the shop and have them do an estimate? Do I return the breather back to normal(And proper way)? Or should I re do my re breather and see if the problem corrects itself?
Im not mechanical at all. I can change my oil and do simple shit, but as for troubleshooting and engine and having the proper tools to work on it, im pretty much fucked in that department.
Thanks in advance and if you need clarification or pics just hit me up.
Earlier this year as the season started, I thought I had gotten a leak in my primary and took the bike in to get the primary gasket replaced. I get a call later that day to come pick up my bike. The shop manager says my primary seal is fine, and that im blowing oil out of my air box because of whatever mod I have in there(Re breather). So its slowly dripped oil for the next month... The other day I got tired of it and tore open the airbox to check my lines and reverse the breather if needed. There was no oil in my air box what so ever. But I still reversed the re breather at least temporarily to see if that was the problem in fact.
The only problem was I did it WRONG! OH SHIZZZ! instead of routing the two hoses back out up into the air box I plugged
The left arrow hose into the where the right arrow hose is without a breather line inbetween. ZOMFG WHAT DID I DO!!!
I took it out for a short clip to the bank to see how it would run before I realized my mistake, and was blowing oil like fuckin crazy.
So I tear back into the air box, see where I fucked up, and re did the breather re route after checkin that all my lines were clear, and no pinches.
Now the bike isnt blowing oil as bad, but there is still a leak. And it seems a bit worse. So Im like WTF do I do. Do I take my into the shop and have them do an estimate? Do I return the breather back to normal(And proper way)? Or should I re do my re breather and see if the problem corrects itself?
Im not mechanical at all. I can change my oil and do simple shit, but as for troubleshooting and engine and having the proper tools to work on it, im pretty much fucked in that department.
Thanks in advance and if you need clarification or pics just hit me up.
OK So I think I'v kinda grasped what I did. I essentially routed the two crank case gas exits together so they couldn't escape from either.
The ride I took it on while that was in effect was only about 10 minutes. You think I did any serious damage during that?
And back on issue what do you think I should do about the leak?
The ride I took it on while that was in effect was only about 10 minutes. You think I did any serious damage during that?
And back on issue what do you think I should do about the leak?
I did my breather re-route exactly like Urban Assault suggested in this thread, the only difference I located it right under the seat.
The stainless filter is of a brand Apiro,from UK. see the pics.
Seems like its working well, I get that smoother running engine on low RPMs..But there is ONE PROBLEM. I get this oily residue coming out of a filter, and it spills on everything around. Some of residue still drains at the drain cock like it should. The filter gets all dirty oily. I constantly have to wipe all this mess.
Does anybody know why it would spill all over? is that oK? should I relocate it, or did I do something wrong in rerouting?
any help will be much appreciated.
The stainless filter is of a brand Apiro,from UK. see the pics.
Seems like its working well, I get that smoother running engine on low RPMs..But there is ONE PROBLEM. I get this oily residue coming out of a filter, and it spills on everything around. Some of residue still drains at the drain cock like it should. The filter gets all dirty oily. I constantly have to wipe all this mess.
Does anybody know why it would spill all over? is that oK? should I relocate it, or did I do something wrong in rerouting?
any help will be much appreciated.
Did this mod yesterday evening. I chose to route the hose to the front:
I mounted the filter to one of the oil cooler mounting bolts. Should be OK since the filter is very light weight:
Thanks to everyone who posted tips, tricks and pics! Without your help I wouldn't have done this
I mounted the filter to one of the oil cooler mounting bolts. Should be OK since the filter is very light weight:
Thanks to everyone who posted tips, tricks and pics! Without your help I wouldn't have done this
Didn't have to verify the effects of the mod yesterday evening, so took the bike to some 100km trip today. What can I say, a BIG difference!! The bike runs much smoother now.
Definitely a must-do mod for every XB owner, and great bang-for-the-buck value!
Definitely a must-do mod for every XB owner, and great bang-for-the-buck value!
Since I've got the bike apart sort of, waiting for my spark plugs and wires, I am moving the re-route towards the front of the bike. This worries me a little cause the plug at the end leaked a little and I don't want oily water everywhere.
What are some suggestions for a catch can to buy or make? minus the bottle blank, and the 120 dollar beauty on here. Something reasonable.
What are some suggestions for a catch can to buy or make? minus the bottle blank, and the 120 dollar beauty on here. Something reasonable.
Johny Kidd
Well-known member
- Joined
- May 28, 2009
- Messages
- 326
I made my catchcan of profile pipe! It has draining bolt on the bottom of the can.
same parts as everyone else i just ran the line down the left side and up across into the area under the seat to hide the breather before i ran it down the outside on the left and hid the line inside the pass foot peg bracket... then i put a small screw into the line to block it off so there is no leaking will check it every few 100 miles or so to drain the bottom of line if necessary
BuddhaBuell
Well-known member
- Joined
- Nov 4, 2009
- Messages
- 2,094
my catchcan is before my filter and nothing has ever come out of the filter...
The catch can separates the oil from the air before it gets to the filter. The oil collects in the can, and needs emptied every so often. If there is no catch can, the spooge will build up in the filter.
I think that riding w/ or w/o a catch can does not effect the riding or feel. If the breather reroute is done, catch can or no, the effects are pretty much the same. The can just keeps your filter clean for you!
Look into air/water separators for air compressors. $15 or so and super easy to use.
I think that riding w/ or w/o a catch can does not effect the riding or feel. If the breather reroute is done, catch can or no, the effects are pretty much the same. The can just keeps your filter clean for you!
Look into air/water separators for air compressors. $15 or so and super easy to use.
