isn't Harleys head breather configuration kinda' 'the same thing only different' as far as PCV, EGR, etc, etc..all just ways to vent and recirculate to satisfy emissions so to speak..?

 

The problem is that simply venting won't work.. It have been mentioned that a deeper sump might help but some simple tweaks in the crankcase venting might help.. The issue is that HD needs a fix that can be applied to all M8s as any have the potential to fail.. The 2019 oil pump back plate looks to be one solution. Need to look at how it effects the scavenge pump.

In the mean time, my 17 RK runs just fine..

 

This is interesting. Kind of an old school idea.... I like it. Combining this along with a good pump / plate would go a long way to permantly solving any oiling issues. Rediculous that Harley didnt do something like this from the beginning.

 

Thats a good looking and well thought out solution. Too bad it would be extremely expensive to have it done. His comments on how much variation he is seeing in the height of the stock port could explain why some bikes sump and others dont.

 

 

LOL

 

But Harley did early on.
I guess you could call it old school; as the knucks, pans. shovels and Evos had a scraper tho it is was in the back part of the motor instead of the sump. They used a timed breather gear to transfer all the oil to the cam case and the pump only had one scavenge pickup. IMO it's not the scraper that is helping in his case. It's the fact that he's extending the oil pickup hole.

https://www.hdforums.com/forum/milwa...e-sumping.html

 

I sure hope Tman patents his scrapper for the crank and sells it back to Harley if it truly fixed the isssue. He mentioned case capacity, you would think that Harley would machine new cases which hold more oil to avoid the pump running dry as the crank spins. As far as pressure build up under the crank,I remember installing Dogherty power vents on my old Evo. As I remember they were designed to eliminated crank pressure build up.I think the owner was Tom if my memory serves me well. I believe he had a patent on his product. Maybe someone should look into his product as a possible solution to help with the sumping issues.

 

Lol. Thats what I did with my touring. Couldve bought low mileage 16 Limited that would've put me money ahead - very tempting. Ended up deciding on another M8 and have no regrets... so far

 

When someone would post on the forum saying, "Softails don't sump" I would counter with your case.

But some have said the symptoms you described didn't sound like sumping.....