Howzit Everyone,
Just thought I would share with ya all how to make your own CLEAN and COOL looking Crankcase Air Oil Separator. C.A.O.S.
The PVC C.A.O.S. or the Big Rubber Hose C.A.O.S. can look very homemade.
I guess that's why people say it makes the bike look like it's on Life Support.
With My design of the Seatpost C.A.O.S. Breather all's one can see is a Hose Fitting on the back side of the seatpost.
When I first got my 2005 NE-5 the stock vent hose with air stone would spit oil everywhere. I knew something had to be done.
I looked at all the C.A.O.S. Breathers available on the market. I didn't see any that were cool enough to mount on a Whizzer.
the C.A.O.S. Breather was invented over 100 years ago.
So of course I had to design (invent) my own. Here's what I came up with.
How to make the Seatpost C.A.O.S. Breather,
I Designed this style C.A.O.S. in 2006. I call it the Seatpost C.A.O.S. Breather.( Crankcase Air Oil Separator)
First I cut 1" off the bottom of the Chromolly Seatpost. I cut and spread the cut off piece to slide on the seatpost.
I then TIG weld the piece in place with stainless steel. (For more support) Stainless steel and Chrome look good together.
Your local welding shop should weld it for $20 It's a small job. They might even do it for free. But give a tip.
Now I drill and tap a hole for a 3/8" hose fitting on the backside of the seatpost.
I have sealed inside the seatpost right below the hose fitting. Any oil will gravity drain back to crankcase.
The way I sealed inside the seatpost was to use a rubber 7/8" stopper and epoxy.
I stuffed the top of the seatpost with stainless steel pot scrubber.(Air Oil Separator).
Use 3/4 of a pot scrubber pad. Don't pack it in too tight. Leave 1" to top of seatpost.
I also added a 3/8" ID hose to the top of the seatpost with RTV silicone and use a small breather filter up under the seat. (I like that look)
I do not use a PCV valve (one way check valve) I use only a small breather filter after my Seatpost C.A.O.S.
In my opinion the engine needs to breathe in and out not just out.
The breather filter prevents any dirt from getting into the engine. Open vent hoses suck dirt into the engine.
The stainless steel filter can be cleaned. Usually every 3,000 miles.
The Seatpost C.A.O.S. Breather never has to be cleaned. But if for some reason ya need to. Just change the pot scrubber pad.
The Seatpost C.A.O.S. Breather Prevents 100% of air oil mist from escaping into the atmosphere. Even at high RPMs 45 to 50 MPH
The Seatpost C.A.O.S. Breather can control 8oz to 10oz of oil in the crankcase. No problem.
I have been using the Seatpost C.A.O.S. Breather since 2006 and I now have put over 36,500 miles on my 2005 NE-5
I think it's time I shared my Design.
No problems with this Breather it works great.
Here's some pictures.
ALOHA Wrench
Take your Whizzer off Life Support
Just thought I would share with ya all how to make your own CLEAN and COOL looking Crankcase Air Oil Separator. C.A.O.S.
The PVC C.A.O.S. or the Big Rubber Hose C.A.O.S. can look very homemade.
I guess that's why people say it makes the bike look like it's on Life Support.
With My design of the Seatpost C.A.O.S. Breather all's one can see is a Hose Fitting on the back side of the seatpost.
When I first got my 2005 NE-5 the stock vent hose with air stone would spit oil everywhere. I knew something had to be done.
I looked at all the C.A.O.S. Breathers available on the market. I didn't see any that were cool enough to mount on a Whizzer.
the C.A.O.S. Breather was invented over 100 years ago.
So of course I had to design (invent) my own. Here's what I came up with.
How to make the Seatpost C.A.O.S. Breather,
I Designed this style C.A.O.S. in 2006. I call it the Seatpost C.A.O.S. Breather.( Crankcase Air Oil Separator)
First I cut 1" off the bottom of the Chromolly Seatpost. I cut and spread the cut off piece to slide on the seatpost.
I then TIG weld the piece in place with stainless steel. (For more support) Stainless steel and Chrome look good together.
Your local welding shop should weld it for $20 It's a small job. They might even do it for free. But give a tip.
Now I drill and tap a hole for a 3/8" hose fitting on the backside of the seatpost.
I have sealed inside the seatpost right below the hose fitting. Any oil will gravity drain back to crankcase.
The way I sealed inside the seatpost was to use a rubber 7/8" stopper and epoxy.
I stuffed the top of the seatpost with stainless steel pot scrubber.(Air Oil Separator).
Use 3/4 of a pot scrubber pad. Don't pack it in too tight. Leave 1" to top of seatpost.
I also added a 3/8" ID hose to the top of the seatpost with RTV silicone and use a small breather filter up under the seat. (I like that look)
I do not use a PCV valve (one way check valve) I use only a small breather filter after my Seatpost C.A.O.S.
In my opinion the engine needs to breathe in and out not just out.
The breather filter prevents any dirt from getting into the engine. Open vent hoses suck dirt into the engine.
The stainless steel filter can be cleaned. Usually every 3,000 miles.
The Seatpost C.A.O.S. Breather never has to be cleaned. But if for some reason ya need to. Just change the pot scrubber pad.
The Seatpost C.A.O.S. Breather Prevents 100% of air oil mist from escaping into the atmosphere. Even at high RPMs 45 to 50 MPH
The Seatpost C.A.O.S. Breather can control 8oz to 10oz of oil in the crankcase. No problem.
I have been using the Seatpost C.A.O.S. Breather since 2006 and I now have put over 36,500 miles on my 2005 NE-5
I think it's time I shared my Design.
No problems with this Breather it works great.
Here's some pictures.
ALOHA Wrench
Take your Whizzer off Life Support
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