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Crankcase ventilation

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  #41  
Old 09-15-2022, 01:22 PM
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My Deluxe was manufactured in 12/18 so no joy on upgraded oil pump. No oil in air cleaner or anywhere else it shouldn't be. So since my tranny case cover is vented, I am going to take the previous commenter's suggestion and just enjoy the ride!
 
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  #42  
Old 09-16-2022, 08:00 AM
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Originally Posted by Keithhu
Welcome to HDForums.

IF your M8 was manufactured after 5/22/2019 it has the updated oil pump.

Vent tube you're seeing by the primary was implemented to mitigate oil transfer from the transmission to the primary.

The vent tube you're seeing in the AC is not really new, all engines have to vent excess pressure, and that's how Harley does it, largely dictated by the EPA (as they do in cars as well)

Ride your bike and enjoy.

Oh, and why you attached a Briggs & Stratton parts manual is a mystery to me.
His bike is a softail, not touring, no vent
 
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  #43  
Old 09-16-2022, 08:07 AM
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Originally Posted by m8deluxe
My Deluxe was manufactured in 12/18 so no joy on upgraded oil pump. No oil in air cleaner or anywhere else it shouldn't be. So since my tranny case cover is vented, I am going to take the previous commenter's suggestion and just enjoy the ride!
Yours is a Softail, the vent you are seeing is just the transmission vent, you don't have to worry about the primary vent on that model
 
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  #44  
Old 09-16-2022, 08:52 AM
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  #45  
Old 09-16-2022, 09:05 AM
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Interesting conversation here. Not surprised about the online gangsters. The OPP question is a good one. My response is do you prefer your bike to spit or swallow...LOL
 
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  #46  
Old 10-01-2022, 02:40 AM
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I like the 90 degree elbows- did a google search and can't find them. where can i find them ? they look perfect
 
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  #47  
Old 10-01-2022, 02:46 AM
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Originally Posted by 702
That's awesome! Hey, since I'm still a douche I happen to have a Screamin' Eagle High-Flow Air Cleaner Kit - Wedge Style for the M8 for sale. I did the breather bypass on it already. You can have it for $125 shipped to you. HD part number 29400245A.



I like the 90 degree elbows- did a google search and can't find them. where can i find them ? they look perfect
 
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  #48  
Old 10-01-2022, 03:50 AM
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Originally Posted by mjwebb
no, you don’t…it already has breathers stock…stop “hearing things online” and go enjoy riding the **** out it without worry…it really is that simple.
This is what the tuning shop in the UK I'll be using for my LRS said. They've had hundreds of M8s through their workshop and said they've only had one or two with any crankcase pressure issues. If it's not using oil there's nothing wrong with it.

It doesn't help when websites like Trask's tell you M8's are "plagued with excessive oil consumption caused by blow-by" and offering to sell you a transmission cover for 350 bucks that looks exactly like the stock one, except shinier and more expensive.
 
Last edited by Gimlet; 10-01-2022 at 03:54 AM.
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  #49  
Old 10-01-2022, 05:23 AM
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Originally Posted by rockz28
I like the 90 degree elbows- did a google search and can't find them. where can i find them ? they look perfect
I got them on Amazon


Amazon Amazon



Originally Posted by Gimlet

It doesn't help when websites like Trask's tell you M8's are "plagued with excessive oil consumption caused by blow-by" and offering to sell you a transmission cover for 350 bucks that looks exactly like the stock one, except shinier and more expensive.
Except that it's not the same. There's a crankcase vent in addition to the trans vent. And it does what it's advertised to do.
 
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  #50  
Old 10-01-2022, 07:03 PM
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