Milwaukee Eight (M8) 2017 and up M8 Air and Liquid Cooled discussion
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Catch Cans for Trask CheckM8

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Old Mar 22, 2023 | 09:23 PM
  #21  
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Originally Posted by FranBunnyFFXII
So I actually went out to my bike today to do some housekeeping stuff, and decided to inspect my checkm8's air filter and saw the wiremesh on it was actually rusting, and there didn't seen to be any oil on it really. So I detached the hose and blew into it just to see if it was blocked off or if it took too much effort to push air through the hose. It was easy to breath out through, so I checked the barb fitting and it had a light coating of oil. I noticed the Tube was not sitting really flush there, and that it was letting oil leak into the top of the transcase. Hit the filter with a bunch of PB Blaster, and ran down to Ace Hardware to pick up a hose clamp. Cleaned up the trans case and barb fitting, cleaned up the hose inside with a Q-tip, and then fitted it all back together, and hose clamped the breather tube.
So my checkm8 works, it was just leaking that little bit of vented oil back down the tube back onto the trans case.
Problem solved now I hope.
Thanks for sharing.
I'm thinking about mounting the filter vertically upwards to promote liquid drain back and keep atmospheric and road moisture off of it.

Automotive PCV's and filters and protected from weather under engine hoods at top of engine bays.
 
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Old Mar 23, 2023 | 10:18 AM
  #22  
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I've rethought my install. With one way check valve, install of filter should be low to drain coalesced oil, similar to a catch can.
placing the filter high might clog the check valve by coalesced oil down to it. I was mistakenly thinking about an open breather from my diesel days.
@FranBunnyFFXII is right, per usual.
 
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Old Mar 23, 2023 | 10:35 AM
  #23  
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Originally Posted by Old New Rider
I've rethought my install. With one way check valve, install of filter should be low to drain coalesced oil, similar to a catch can.
placing the filter high might clog the check valve by coalesced oil down to it. I was mistakenly thinking about an open breather from my diesel days.
@FranBunnyFFXII is right, per usual.
Put it wherever you want of course, just know that Trask installs it up high. In my case above the ABS Module behind the right side cover.

Meet "Moots", he's the guy that developed the Check M8, and is the guy that installed it on my bike (pictured).


 
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Old Mar 23, 2023 | 10:41 AM
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Originally Posted by 702
Put it wherever you want of course, just know that Trask installs it up high. In my case above the ABS Module behind the right side cover.

Meet "Moots", he's the guy that developed the Check M8, and is the guy that installed it on my bike (pictured).

Huh. Wonder why they show it mounted horizontally on the cover?

 
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Old Mar 23, 2023 | 10:47 AM
  #25  
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Originally Posted by Old New Rider
Huh. Wonder why they show it mounted horizontally on the cover?
That's a marketing photo for their website, it doesn't mount there. Call them, maybe it doesn't matter.
 
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Old Mar 23, 2023 | 11:40 AM
  #26  
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Originally Posted by Old New Rider
I've rethought my install. With one way check valve, install of filter should be low to drain coalesced oil, similar to a catch can.
placing the filter high might clog the check valve by coalesced oil down to it. I was mistakenly thinking about an open breather from my diesel days.
@FranBunnyFFXII is right, per usual.
I don't know if I'm right, it was just the position that I could route on my bike easily and keep it out of the way. That position was to make the install easier.
 
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Old Mar 24, 2023 | 10:18 AM
  #27  
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Originally Posted by 702
That's a marketing photo for their website, it doesn't mount there. Call them, maybe it doesn't matter.
Excellent idea. If the install kit doesn't state preferred orientation, I'll call and ask, and report back here.

Thanks.
 
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Old Mar 24, 2023 | 11:25 AM
  #28  
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I have the Trask Check M8 and I am also looking for a good catch can. All the ones I have found are either too large or too small...
 
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Old Mar 24, 2023 | 12:48 PM
  #29  
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I received my Trask CheckM8 today. Confirming there is no assembled layout as-received.

I plan to call them and ask what is recommended, if any.


 
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Old Mar 26, 2023 | 01:52 PM
  #30  
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Thanks for member advice. I didn't hear back from Trask yet so decided on vertical down install.

Could have done without inch long Grade 8 fasteners slothered with loctite for just a cover seal with minimal tool access, though.

 
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