How to Install a Crank Case Breather Vent Kit from TPO Parts

b. · January 25, 2009, 04:41:31 PM

Quote from: iduesoliusa on January 25, 2009, 11:38:47 AM
So, I just squeeze the red oil around the filter?

Yes, spread it evenly around the filter, but don't glob it on there. Do it once, wait about 15 minutes and then apply it again to those areas that you missed.

hitman87 · January 25, 2009, 07:40:10 PM

any body got the filter size/part number? i know i can fine it cheaper than the TPO price

corey · January 27, 2009, 08:59:53 AM

so you have 2008 monster.
how did you relocate your rectifier/regulator without using the TPO plate from their seperate kit?

Ranger06 · February 25, 2009, 06:06:00 PM

sorry it took me so long to respond. All I did was get a piece of steel from Lowes and make my own. I think the piece I bought was actually some sort of fence hasp...some kind of brace for maybe a wood door. worked like a charm. Any piece an inch wide and about 5" long should work.

corey · February 27, 2009, 01:15:23 PM

gotcha. thanks for the reply. have to do some drilling and what not on that piece?

He Man · February 27, 2009, 01:52:38 PM

recycle!
I can send you one in a padded envelope. I have tons of scrap Aluminum (6000) in sizes that cant be used for much. plus its blingy if you polish it

not that you can see it.

ranger06, May i ask, the vent box... those two reservoirs do connect at some point right? Because i just want to connect the two hoses together and call it a day...

Ranger06 · March 04, 2009, 06:42:19 PM

He Man, the hoses do not connect to each other. One hose goes from the reservoir to the airbox. The second hose goes from the reservoir to the breather valve. Both hoses get removed. the airbox gets a plug in it and the breather valve gets swapped out for a K&N filter. I would NOT connect the hoses together once the oil reservoir (tank) is removed. I guess that would vent any fluids from the crankcase straight to your airbox.

Hope this helps.

He Man · March 05, 2009, 12:04:41 AM

Quote from: Ranger06 on March 04, 2009, 06:42:19 PM
He Man, the hoses do not connect to each other. One hose goes from the reservoir to the airbox. The second hose goes from the reservoir to the breather valve. Both hoses get removed. the airbox gets a plug in it and the breather valve gets swapped out for a K&N filter. I would NOT connect the hoses together once the oil reservoir (tank) is removed. I guess that would vent any fluids from the crankcase straight to your airbox.

Hope this helps.

Okay, just to make sure we are on the same page. the 2 resoviors do not connect in any way?

I was told the gas from the crankcase gets vented in the breather box, and that gas gets vaccum sucked into the airbox and reused...
i highly doubt that a significant amount of oil would be able to make it up to the airbox, im sure some would, but the amount of pressure for that to happen would be tremendous. you rarely even spit out oil from the K&N filter.

b. · March 05, 2009, 08:14:32 AM

Quote from: He Man on March 05, 2009, 12:04:41 AM
Okay, just to make sure we are on the same page. the 2 resoviors do not connect in any way?

I was told the gas from the crankcase gets vented in the breather box, and that gas gets vaccum sucked into the airbox and reused...
i highly doubt that a significant amount of oil would be able to make it up to the airbox, im sure some would, but the amount of pressure for that to happen would be tremendous. you rarely even spit out oil from the K&N filter.

He Man,

You're correct, crankcase to breather box to air box. You're also probably right that it would take a lot of pressure to actually send anything back up, but why not just cap the box and put a filter on the crankcase?

He Man · March 05, 2009, 10:31:09 AM

My friend did this on his monster it spits out a lot of crank case gasses. it might be the air we ride in or something.

i need to dump the crankcase for my new shock, i think i may just connect the two tubes together and call it a day.

corey · March 10, 2009, 12:11:40 PM

I wouldn't be surprised if you ended up with an oily airbox filter that way. Not only would your bike be idling on misty, oily air coming directly from your crankcase, but it would then be running on it FULL TIME. If you think about it, it's not PRESSURE that's going to get oil that far up from the crankcase, but rather SUCTION. As soon as your crack that throttle open, it's going SUCK some air (and probably oil) directly from your crankcase, instead of the breather box. The breather/vent box does just what it says. It stores any oil mist, while venting the pressure from your crankcase, and then cycles air back to your airbox. It does work, but by installing the filer kit, you will even further reduce the pressure in your crankcase (thus preventing any oil blowback), and it will also allow your bike to idle on the same tasty, clean air that it gulps down while at WOT.

It sounds like your friend has a crankcase pressure problem that doesn't have much to do with the filter kit maybe?
At $25 bucks, I'd give the kit a try. If it doesn't work out, you can always do your hose splicing.

corey · March 11, 2009, 07:04:11 AM

Well, I took care of my crank breather kit last night.
I have an 02+ monster, so of course I had to create something to mount my rectifier/regulator to under the seat.
I didn't want the elements (other than more air) to be able to get to it, so i created a small blockoff plate/mounting bracket using a spare piece of steel and a dremel tool. With the breather box out of the way, the rectifier gets a lot more air, so I felt it would be fine to protect to the bottom of it from road debris, water, and other nasties.

Here is a link to an JPEG of my bracket on Flickr, download the LARGE size, and print it horizontally on an 8.5x11 Sheet. DO NOT SCALE IT.
Bracket on Flickr

Here's a preview

If anyone would like it in a scalable vector / PDF format, just let me know.
Again, obviously, please don't sell this bracket to people for a profit. It's free, public knowledge meant to help our tech forum be more useful.

Obviously, plastic would work fine here too...
I used a piece of a metal bookshelf end I had laying around, and a dremel. It worked perfect.

PM me if you want it in PDF format.

Langanobob · June 09, 2009, 07:17:55 AM

Corey,

Thanks for taking the time to post your template. It'll save me some time and also it's better than what I probably would've come up with, left to my own devices.

corey · June 10, 2009, 01:54:12 PM

no problem! be sure to measure it when you print it out to make sure it corresponds to my measurements that are on the template.
sometimes things like to get scaled down on the internet and whatnot...
if you have trouble getting it to the right size, shoot me a PM and I can send you the PDF version that will print properly.

He Man · June 10, 2009, 02:46:02 PM

just to update, i did end up connecting the two tubes together and dynoed it. Runs perfectly fine.

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How to Install a Crank Case Breather Vent Kit from TPO Parts