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CVO Technical => Drive Train => Topic started by: wolfhd on July 10, 2018, 09:11:20 PM
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My 2015 FLTRSEU is losing about 8 oz. every 300 miles. OUCH. I just put a vent hose on my primary chaincase today. I will let you know if it works. Has anyone tried a 3 piece clutch rod from the 2014 CVO's??? It looks a little thicker in diameter. Maybe will keep oil from moving thru mainshaft.
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My 2015 FLTRSEU is losing about 8 oz. every 300 miles. OUCH. I just put a vent hose on my primary chaincase today. I will let you know if it works. Has anyone tried a 3 piece clutch rod from the 2014 CVO's??? It looks a little thicker in diameter. Maybe will keep oil from moving thru mainshaft.
Unfortunately yours is not a new issue. Something that's been discussed for quite awhile. Superseded recently by other even more dramatic engine issues but the fluid movement problem you're dealing with is not new. Have seen others try venting the primary also; without real success.
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My 2015 FLTRSEU is losing about 8 oz. every 300 miles. OUCH. I just put a vent hose on my primary chaincase today. I will let you know if it works. Has anyone tried a 3 piece clutch rod from the 2014 CVO's??? It looks a little thicker in diameter. Maybe will keep oil from moving thru mainshaft.
For some the larger diameter rod from the 14 works well.
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I seem to remember a supposed fix that involved a new seal and new spacer, but I'm not having any luck finding where I read that. That was for the Twin Cam RushedMore bikes, still haven't seen a fix for the M8 bikes. There are a lot of very PO'ed folks on other forums with 2017 and 2018 bikes experiencing severe migration issues, one I remember reading about would transfer 20 ounces from the trans to the primary in just a few hundred miles.
Sure am glad Harley did all those millions of miles of testing. I'm guessing those were virtual test miles, not actual riding of production level bikes by real people. Some people think they can assign everything to a computer program these days. "It works on paper (monitor)" is a common comeback to an issue. It might be a good answer if we only used virtual products, but I always found those virtual rides to be less than satisfying. After all that riding I found myself still at the starting point.
Jerry
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My dealer called the factory because neither one us believed that the sprocket shaft seal could have anything to do with this. The factory is saying that the seal can go bad and crankcase pressure and vacuum can cause funny things in the primary. Makes sense to me now. I pulled mine apart today; mines a 2015 with 49,000 miles on it and the seal was brittle as glass. I think the MOCO is correct on this. I'm going to get it back together the first of the week and I will let u know. Praise the Lord if this works.
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Good luck hope that sorts the issue for you.
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Thank God. My problem is fixed. The seal did it and it was only $4.19. Ran it like I stole it for 500 miles., all oils are still in the correct compartment. Sound like they need to change seal vendors or materials.....Thank God for these forums also.
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So we now have evidence the seal will fix the issue on a late model Twin Cam bikes. Makes me wonder what changed from 2013 and prior to the 2014 - 2016 bikes. And according to the guys raising hell on other forums about the 2017-2018 M8 bikes, changing the seal in those doesn't do anything for their problem. :nixweiss:
Sounds like Harley not only needs to go to desmodromic valve actuation, but also unit construction engine and transmissions like all those Japanese bikes. Don't have to worry about trans oil in the primary or engine, it's all one lube supply.
Jerry