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Breather hose with pods?

  • Thread starter Thread starter Tarbash 27
  • Start date Start date
Ha! You beat me to it Bruce. I'm so dang slow trying to post a pic. I finally get it sent and you steal my thunder! Might as well describe it anyway.
Mines from a dust cover from my Progressive shocks. Works pretty good but I made one change since this pic. I found that if I rode really hard and the combination of forgetting about it for too long, I'd get some seapage to spill out.
Now I just fold up a small napkin and lay it on the bottom. No more splashing since. It basically sucks up any moisture and dries out on its own but I change it once in awhile anyway.
I used some very thick walled tubing for the hose so it doesn't sag much. I wanted to avoid the tubing having a low spot/dip and moisture collecting/clogging the tube and compromising good venting.

KeithsPictures017.jpg
 
Good Idea, But I have all my electrics under the seat and no room for that setup. You guys dont have any spills on hard leans into turns?
 
Tarbash 27 said:
Good Idea, But I have all my electrics under the seat and no room for that setup. You guys dont have any spills on hard leans into turns?
Click to expand...

I hardly get anything in the catch cup. It's just a bit of sludge on the bottom of the cup, which I periodically wipe out. If yours were to fill up enough to spill out, you have other issues.
 
Tarbash 27 said:
Well I would not want to rerout it back ino the engine because it fills my catch can bottle with white oil, oil and condensation mix I guess. I had a 6" hose and a breather that hung above the carbs. It would stink from the fumes and would seap or at least mositen up my nice 29mm's with oil. Perhaps rout it all the way to the back of the seat cowling so it breathes behind the license plate? Or am I asking for trouble with oil seeping on the tire.

I would like a nice small aluminum catch can, but all I can find are cans too big and are made for a car. I know my bike might have a bit more blowby than you guys because it has about 52,000 miles on it and what looks an original motor. I plan on a full rebuild next winter.

Just trying to get ideas.
Click to expand...
If it is routed so it goes back into the motor you won't get the condensation you get with the system open. Pingle sells a VERY nice aluminum one with 2 nipples on it AND a drain built into it! Ray.
 
Home Made solutions #2

Home Made solutions #2

Well I just saw Ray's post about the pingle unit (probably +$100 buckeroos) but thought I would post what I have doing for the last hour after reading this thread.


1.) Figured a nice aluminum bottle would work. I found my Harbor freight aerosol 16 oz sprayer but no way to fit it. Went to goggle and found standard size 4 oz units. Here is an example:

http://www.hangercity.com/alspbo4oz.html

Size: 6"tall x 1 3/4"diameter including the sprayer.

2.) I figured that the K&N filter should be mounted vertically above a bottle so that the oil from the breather hose is fighting gravity to go up and out. The oil should go to the bottom of a bottle. No need for additional ventilation other than provided by the filter.

3.) Mount the filter to the top of the bottle and screw a nipple fitting into the side of the bottle (facing down a little) for the breather hose. See mock up pictures below.








alum_spray_bottle_0z.jpg


The total height depending on the upper fitting is probably less than 7 inches. I'm guessing based on scaling the image 6.5". In staging a spray can of similar dimensions on my GS750, it looks like this kind of arrangement might just sit right on the rear fender cross brace behind and to the right of the battery when the rear air box is out. Worst come to worst the filter could be mounted at 90 degrees and the breather hose mounted so it was not directed at the filter would easily fit.

Anyway, it doesn't feed back to the engine but might provide for a clean solution that is mostly metal. And it would seem like it would be very hard for any oil to get out of this bottle unless it tipped over or you had 40 psi coming out the breather hose :oops:

breather_bottle_staging.jpg


Ill give it a try after ordering a couple of these little bottles.

Posplayr
 
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I like the idea, on mine I will add a small hose coming out from the bottom of the bottle routed to drip the oil on the chain.
 
Let me know how that works out

Let me know how that works out

Good Idea on the chain luber.

The next issue would be how to mount the bottle securely. A vertical flat bar from the fender cross member to the horizontal frame member would provide a place to (ugh) hose clamp the bottle. (I hate using hose clamps on anything other than hoses). Anyway a couple of large hose clamps would be very secure. I'll look for some other type of snap in holder.

Posplayr
 
Tarbash 27 said:
Good Idea, But I have all my electrics under the seat and no room for that setup. You guys dont have any spills on hard leans into turns?
Click to expand...

I can't imagine not having space. There aren't that many electrics.
No spills around turns. There isn't that much fluid in there, at least in my case. Since I put the small napkin in it sucks up any that comes out.
 
Tarbash 27;790. You guys dont have any spills on hard leans into turns?[/QUOTE said:
If you have problems with spills on hard leans, you are not doing the turns correctly. :shock:

Because of the inherent need for the motorcycle to remain balanced, all forces will be straight down, but that 'down' will be relevant to the point of support. That means that all forces will go straight to the point where the tires contact the road. Have you ever noticed that you don't get thrown from side-to-side, like you do in a car? You only get pressed harder into the seat. The only time these forces change is when accelerating or braking, and you move front-to-back, but never side-to-side.

.
Click to expand...
 
Forces

Forces

As you say, the lateral forces will always be down through the frame (what for air craft is called a coordinated turn where you are pressed down into your seat and your drink doesn't slosh one way or the other), however it is possible with hard braking or acceleration to get spill overs longitudinally(ask me how I know about a coffee cup). Some members here might also like to perform a death defying procedure called a "wheelie". I might need some paper for that. The breather bottle could use some too.

Posplayr
 
Not exactly. On a bike any point other than the Center of gravity will get some side force when the bike's angle is changing, for instance a sudden change from a hard right turn to a hard left turn will put a force to the right on anything above the center of gravity, only during the time the angle is changing. Especially during the time the rate of change in angle is changing. Oil would theoretically slop out, but there should be no oil in the first place unless your engine is very worn indeed. Use asparagus oil and no one will know the difference.
 
Well not exactly not exactly

Well not exactly not exactly

>>>>On a bike any point other than the Center of gravity will get some side force when the bike's angle is changing,

The bikes rotation is about the tire patch and so the frame roll induces a lateral (inertial) translation of the bikes CG (e.g. with respect to the tires patch line of travel). It is not a free inertia where rotation would occur about the C.G. The tire patch is an additional boundary condition.:)

We are now getting fully immersed in the second order dynamic effects.:shock:. I don't want to start taking about the flipping effect this has on the viscous medium in the bottle :confused:.

I'd say put it in a bottle and let it shake around, but use gravity (and centripetal acceleration) to keep it in (i.e put the filter vertical and the enclosed bottle down in the bikes z- frame). \\:D/

Posplayr
 
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Wow there are really a bunch of pretty ones over at flea bay

Wow there are really a bunch of pretty ones over at flea bay

Ray mentioned having a return line to the engine.

There are at least two fitting on each of the ones I've seen. So if you run the breather hose to one, do you hook the other to the breather filter? How would you route the oil back to the engine? What would get it there?

http://cgi.ebay.com/ebaymotors/OBX-...038227770QQcmdZViewItem?hash=item370038227770

Boy this is shore pretty ; too bad it gets to hold all that crappy breather oil......:-s

TIA
 
Tarbash 27 said:
Ok, what about when the bike is sitting on the sidestand parked. My bike leans pretty far and I think it will spill out. The reason I have no room under my seat is that I rerouted my harness and have a plate that I bolted the starter relay, fusebox, rectifier too. Plus I stiil havea tool tray.

I found this on ebay and I think I will buy it and see if I can make it work.

http://cgi.ebay.com/ebaymotors/ws/e...m=290037447553&ssPageName=STRK:MEWA:IT&ih=019
Click to expand...

Mine does not spill... ever. If it did, I would certainly change it.
 
On a street bike, you could route it to the exhaust and burn the vapor that way.

For the most part we use plastic juice and pop bottles. Stuff them about half full with paper towels. Add 10 or so small vent holes at the top. A couple of ties and call it good. Much lighter/cheaper than those fancy bottles. Clean them once a season at best. Unless things go bad, we don't get much in them.

The cases build pressure and need to vent, so if you route back to the cases, you still need some sort of vent.
 
posplayr said:
Ray mentioned having a return line to the engine.

There are at least two fitting on each of the ones I've seen. So if you run the breather hose to one, do you hook the other to the breather filter? How would you route the oil back to the engine? What would get it there?

http://cgi.ebay.com/ebaymotors/OBX-...038227770QQcmdZViewItem?hash=item370038227770

Boy this is shore pretty ; too bad it gets to hold all that crappy breather oil......:-s

TIA
Click to expand...

Theres alot of those type of cans on there, but they all seem to big.
 
renobruce said:
Mine's run back to a plastic paint can lid strapped to the frame, with a K&N crankcase filter on it. I stoled the idea from Keith. :-D




Click to expand...

Where did you get that braided hose and what size is it? Got a web link?
 
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