a warning from a builder
Seasoned HDF Member
Joined: Jul 2013
Posts: 11,185
Likes: 7,961
From: In my head
I've never done either and never plan to simply because I've never had any indication why I needed to improve something or mitigate some problem..my 'solution' to the 'problem' of re-combusting the breather residue has always been to combust the Hell out of it by using the rpm range I paid for often
One of these days all those "I'm keeping my bike stock, it's the greatest thing since ice cream' blaa bla blaa is going to turn and something is going to go wrong and that absolutely perfect bike won't be so perfect anymore.
The TAX
Seasoned HDF Member
Joined: Jan 2008
Posts: 13,632
Likes: 11,382
From: State of Confusion
oh well, so far so good anyway..same as my plan to live forever
Road Master
Joined: May 2008
Posts: 1,136
Likes: 93
From: Andrews, NC
I've never done either and never plan to simply because I've never had any indication why I needed to improve something or mitigate some problem..my 'solution' to the 'problem' of re-combusting the breather residue has always been to combust the Hell out of it by using the rpm range I paid for often
No need to go any further.
Cruiser
Joined: Jul 2020
Posts: 111
Likes: 64
From: Southeast Louisiana
The two are not related in any way. I did both and used inline clear fuel filters for the filter and drained to ground. The top end filter collects moisture that can be seen and the crankcase vent picks up a tiny bit of oil. Venting the top end into the breather is not an engineering "best practice" it is an EPA requirement, I prefer to go with the best practice. I cannot say if the crankcase vent is actually needed but it sure cant hurt. In the end it is an individuals choice.
Seasoned HDF Member
Joined: Jan 2006
Posts: 11,467
Likes: 2,996
From: Charleston, SC
The two are not related in any way. I did both and used inline clear fuel filters for the filter and drained to ground. The top end filter collects moisture that can be seen and the crankcase vent picks up a tiny bit of oil. Venting the top end into the breather is not an engineering "best practice" it is an EPA requirement, I prefer to go with the best practice. I cannot say if the crankcase vent is actually needed but it sure cant hurt. In the end it is an individuals choice.
Might not hurt a thing, but could also result in your heads getting packed full of white oily milky puss over a long time of not being vented correctly... Who's to say though.
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Cruiser
Joined: Nov 2015
Posts: 240
Likes: 33
From: Missouri
Well... these two vents in question, they are trying to vent the same air body (case + oil pan) and if the dipstick vent does a better job, it's possible the moisture in the heads will not be evacuated correctly.
Might not hurt a thing, but could also result in your heads getting packed full of white oily milky puss over a long time of not being vented correctly... Who's to say though.
Might not hurt a thing, but could also result in your heads getting packed full of white oily milky puss over a long time of not being vented correctly... Who's to say though.
if so I would think the idea of keeping the garbage out of your intake would be the better option of the two. your not really doing anything different except dumping anything coming from the heads to the ground (in my case) instead of into your intake.
the more I think about this, doing both is a non issue
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Seasoned HDF Member
Joined: Jan 2006
Posts: 11,467
Likes: 2,996
From: Charleston, SC
Interesting? are they?... If so I could see a possible issue.
if so I would think the idea of keeping the garbage out of your intake would be the better option of the two. your not really doing anything different except dumping anything coming from the heads to the ground (in my case) instead of into your intake.
the more I think about this, doing both is a non issue
if so I would think the idea of keeping the garbage out of your intake would be the better option of the two. your not really doing anything different except dumping anything coming from the heads to the ground (in my case) instead of into your intake.
the more I think about this, doing both is a non issue
Venting dirty air away from the intake is another point. Still vent through the head breathers, but route the hoses elsewhere instead of directly into the intake.
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Cruiser
Joined: Nov 2015
Posts: 240
Likes: 33
From: Missouri