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Well there's been a ton of stuff about the bad lifters in the CVO motors. Well the last year of the twin cam was 2016. Did Harley Davidson finally get the lifter problem solved or were the lifters still a problem even towards the end of the twinkie?
Well there's been a ton of stuff about the bad lifters in the CVO motors. Well the last year of the twin cam was 2016. Did Harley Davidson finally get the lifter problem solved or were the lifters still a problem even towards the end of the twinkie?
I have a 2017 slim s with the 110 se,I'm concerned about the lifters as much as you.It seems like the late model 110's have the better se lifters in them,but do to high valve spring pressure they can still have lifter failures.I have very low miles on my bike but it is something I do think about, will probably upgrade them with S&S or woods lifters.
My buddies 2015 CVO SG just let go mid-summer last year. Metal everywhere. Cases had to be split and completely torn down and cleaned out. Rebuilt from the ground up and not cheap. I had warned him about it about a year before everything let loose. He was contemplating a cam upgrade with the lifters and put it off too long. Costly mistake. Cheap fix if it's done in time. YYMV
Harley last updated the lifters for the 110 in 2014. They still fail frequently in the 110 motor. Friends 2014 CVO limited had lifter failure while on our ride in Oregon, 2600 miles from home. Bike was a year old, 21K mile. Another friends 2015 CVO road glide ultra had lifter failure at 36K mile a year and a half old. My 2015 CVO Road Glide ultra had lifter failure at 44K miles a day before it was two years old. Engine replaced by HD.
Common, and that was not my first 110 with lifter failure. The problem is a combination of the Very high pressure valve springs and the 255 cam. Better lifters help, but the fix is in better lifters and different valve springs, and different cam
It was not the lifter itself, buy rather the incredibly stout Comp Cams triple valve springs that HD used in the heads, that would destroy the roller lifter axle, take out the cams, and fubar the oil pump from the introduction of hardened metal debris.
When we are performing HD Extended Warranty claims on those, we MANDATE to the insurance company that those be changed.
Many happy clients after that, with big trouble free/quiet engine miles on their bikes, only prove it.
Scott
It was not the lifter itself, buy rather the incredibly stout Comp Cams triple valve springs that HD used in the heads, that would destroy the roller lifter axle, take out the cams, and fubar the oil pump from the introduction of hardened metal debris.
When we are performing HD Extended Warranty claims on those, we MANDATE to the insurance company that those be changed.
Many happy clients after that, with big trouble free/quiet engine miles on their bikes, only prove it.
Scott
Scott at what mileage do you recommend doing this upgrade I have a slim s with the 110 se.
I got away with swapping my original stock lifters at about 26K miles. Then I gain I had the "B" lifters that were better then the "C" lifters they started putting in the 110" motors after 2010 or 2011 MY. (IIRC) And believe it or not, they showed no wear what so every which is very surprising.
Personally if you have a 2010 later model with stock lifter, I would do them at 20K miles. Also without a doubt, go aftermarket lifter!
Scott at what mileage do you recommend doing this upgrade I have a slim s with the 110 se.
You ask at what mileage to change. I read on another forum they should be replaced the day they leave the dealer. I replaced mine on my 16 CVO LIMITED at 9k miles. Put in standard S&S and will be changing them every 25k miles
I recently picked a low mile (under 4k) SE Super Glide, no issues so far. I know the early ones around 08 had issues but hate to start tearing things down just yet.
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