2015 Street Glide CVO 110 Engine Failure
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Stage IV
Joined: May 2021
Posts: 4
Likes: 1
From: Colorado
2015 Street Glide CVO 110 Engine Failure
I have a 2015 Street Glide CVO with the 110 twin cooled engine. I have changed my oil every 2500 miles since the day I bought the bike new from the dealer. I always used HD full synthetic oil per Harley recommendation. I have just under 35,000 miles and the engine is shot completely. From what the mechanic is saying, the tappets went out and also the lifeters went out and they took out the rest of the engine. After speaking to several Harley Mechanics I have found out that the 110 is very well known for this failure. The fix is to have your tappets and lifters replaced at 20,000 miles. Not one single Harley dealership ever said a word to me about this and they serviced my bike from day one. It is sad that Harley can not communicate such an issue with customers when they find a problem like this. Plus I had complained about loud noises multiple times in the top end of my bike and everytime they told me it is just another 110 engine and they are loud all the time. Well come to find out they are loud because the tappets and the lifesters are going bad and they need replaced. It is very cheap to have them replaced compared to replacing the engine for $10,000. Also be aware the 110 is the only engine can use for this bike. There are no other options for this bike. Harley had to know this was an issue as they never used this engine in any other bikes. The fact that they never moved forward using this engine and there are so many failures that is proof that Harley knew about this issue. I am personally calling for a class action suit to get Harley to stand up for the owners of this bike with this engine. We all need to stand up and take action or they will just get away with this criminal behavior.
Club Member
Joined: Feb 2013
Posts: 9,833
Likes: 8,737
From: Edmonton, Alberta
Harley lifters are junk generally but in the 110 engine they are pure kryptonite.
As for not using the 110 in other bikes, it was used in every CVO model of the period to include Softails and Dynas.
As for not using the 110 in other bikes, it was used in every CVO model of the period to include Softails and Dynas.
Road Warrior
Joined: May 2017
Posts: 1,801
Likes: 2,323
From: WI
I have a 2015 Street Glide CVO with the 110 twin cooled engine. I have changed my oil every 2500 miles since the day I bought the bike new from the dealer. I always used HD full synthetic oil per Harley recommendation. I have just under 35,000 miles and the engine is shot completely. From what the mechanic is saying, the tappets went out and also the lifeters went out and they took out the rest of the engine. After speaking to several Harley Mechanics I have found out that the 110 is very well known for this failure. The fix is to have your tappets and lifters replaced at 20,000 miles. Not one single Harley dealership ever said a word to me about this and they serviced my bike from day one. It is sad that Harley can not communicate such an issue with customers when they find a problem like this. Plus I had complained about loud noises multiple times in the top end of my bike and everytime they told me it is just another 110 engine and they are loud all the time. Well come to find out they are loud because the tappets and the lifesters are going bad and they need replaced. It is very cheap to have them replaced compared to replacing the engine for $10,000. Also be aware the 110 is the only engine can use for this bike. There are no other options for this bike. Harley had to know this was an issue as they never used this engine in any other bikes. The fact that they never moved forward using this engine and there are so many failures that is proof that Harley knew about this issue. I am personally calling for a class action suit to get Harley to stand up for the owners of this bike with this engine. We all need to stand up and take action or they will just get away with this criminal behavior.
While I wish you the best on your class action lawsuit, I don't think there's much chance it happens. Look at high widespread the oil pump issues were on the M8s, and as far as I know nobody ever saw a class action suit or reiumbursement outside warranty.
That being said, $10k is a ludicrous price for any motorcycle engine. You could probably throw in something from S&S or have the guys at Fuel Moto build you something for a little over half that cost. Then at least you know it'll run well, make stupid high power, and you'll know quality parts were used everywhere.
Advanced
Joined: Apr 2021
Posts: 87
Likes: 77
From: Neillsville, WI
I have a 2015 Street Glide CVO with the 110 twin cooled engine. I have changed my oil every 2500 miles since the day I bought the bike new from the dealer. I always used HD full synthetic oil per Harley recommendation. I have just under 35,000 miles and the engine is shot completely. From what the mechanic is saying, the tappets went out and also the lifeters went out and they took out the rest of the engine. After speaking to several Harley Mechanics I have found out that the 110 is very well known for this failure. The fix is to have your tappets and lifters replaced at 20,000 miles. Not one single Harley dealership ever said a word to me about this and they serviced my bike from day one. It is sad that Harley can not communicate such an issue with customers when they find a problem like this. Plus I had complained about loud noises multiple times in the top end of my bike and everytime they told me it is just another 110 engine and they are loud all the time. Well come to find out they are loud because the tappets and the lifesters are going bad and they need replaced. It is very cheap to have them replaced compared to replacing the engine for $10,000. Also be aware the 110 is the only engine can use for this bike. There are no other options for this bike. Harley had to know this was an issue as they never used this engine in any other bikes. The fact that they never moved forward using this engine and there are so many failures that is proof that Harley knew about this issue. I am personally calling for a class action suit to get Harley to stand up for the owners of this bike with this engine. We all need to stand up and take action or they will just get away with this criminal behavior.
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Grand HDF Member
Joined: Oct 2009
Posts: 3,932
Likes: 882
From: SOON TO BE A SAFE AMERICA
This is no secret regarding **** poor lifters in not just CVOs but any Harley motorcycle. The better lifters were the "B" Lifters which the MoCo
stopped using in/around 2010-2011. Combined with the heavy valve springs and the SE255 cam is a perfect recipe for a disaster in those 110" motors. Most that know,
swap out their stock lifters every 7000-10,000 miles. Even better, go with aftermarket lifters. This has been a known problem since the 110" motors first came out in the CVOs.
There is a cure but it's too late for that. The best recommendation would be to build a S&S 124" motor from the ground up. Second would be a S&S crate motor.
Or you could build your 110" motor into a 117" motor. Check out "Suburban Speed Shop" for parts or any aftermarket company. The MoCo has a 117" kit for the
110" twin cam motors which is leaps better then the 110" motor and it is the way it should came straight from the factory. You will love your bike again doing any of
the suggested upgrades.
Good Luck,
YB
stopped using in/around 2010-2011. Combined with the heavy valve springs and the SE255 cam is a perfect recipe for a disaster in those 110" motors. Most that know,
swap out their stock lifters every 7000-10,000 miles. Even better, go with aftermarket lifters. This has been a known problem since the 110" motors first came out in the CVOs.
There is a cure but it's too late for that. The best recommendation would be to build a S&S 124" motor from the ground up. Second would be a S&S crate motor.
Or you could build your 110" motor into a 117" motor. Check out "Suburban Speed Shop" for parts or any aftermarket company. The MoCo has a 117" kit for the
110" twin cam motors which is leaps better then the 110" motor and it is the way it should came straight from the factory. You will love your bike again doing any of
the suggested upgrades.
Good Luck,
YB
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Grand HDF Member
Joined: Oct 2009
Posts: 3,932
Likes: 882
From: SOON TO BE A SAFE AMERICA
Also, IF you want to know more information about your CVO and problems other owners CVO are having. You should check out the the CVO section here or
check out CVOHarley.com forum.
YB
check out CVOHarley.com forum.
YB
Stellar HDF Member
Joined: Feb 2012
Posts: 3,293
Likes: 3,518
From: PA
I just don't get it..even before I got my first Harley I learned as much about them as I could...I even found this forum and joined it. There is a wealth of knowledge on here and in other places on the internet....When I got my first bike a C50 Suzuki..I found a forum for that....If you are going to take up an expensive Hobby you should educate yourself on it as much as you can.....JMO