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[HarleyFool59]

New member, so this is my first post, although I have used this forum for years reviewing opinions and experiences.  Great site!

Anyway, I am the proud (original) owner of a 2011 CVO Street Glide with the 110 motor.  I've experienced all of the heat problems fellow posters have mentioned, which I dealt with using three fans, two on the motor and replaced oil cooler with fan assisted model.  Also using PowerVision to monitor engine temp and tweak fuel-air mixture. Over the last year bike has been making lots of noise.  I tore apart the cam case to find one of the cam bearings had failed, so took motor apart for that.  In the process, I replaced the cam bearings, cams, cam plate and oil pump with S&S TC3, and roller rockers (which required clearancing in rocker covers).  After bike back together it ran well, but still making noise.  Took to dealer and they informed me that they had never seen a 110 motor with over 32K miles that didn't need a new engine.  My bike has 49K miles.  My question to the forum, does anyone out there have over 50K miles on a original 110 engine? 

[DCFIREMANN]

New member, so this is my first post, although I have used this forum for years reviewing opinions and experiences.  Great site!

Anyway, I am the proud (original) owner of a 2011 CVO Street Glide with the 110 motor.  I've experienced all of the heat problems fellow posters have mentioned, which I dealt with using three fans, two on the motor and replaced oil cooler with fan assisted model.  Also using PowerVision to monitor engine temp and tweak fuel-air mixture. Over the last year bike has been making lots of noise.  I tore apart the cam case to find one of the cam bearings had failed, so took motor apart for that.  In the process, I replaced the cam bearings, cams, cam plate and oil pump with S&S TC3, and roller rockers (which required clearancing in rocker covers).  After bike back together it ran well, but still making noise.  Took to dealer and they informed me that they had never seen a 110 motor with over 32K miles that didn't need a new engine.  My bike has 49K miles.  My question to the forum, does anyone out there have over 50K miles on a original 110 engine?

[/color]

I think we would all like to know. I lost an inner cam bearing at 22K.

Be Safe

THE DAWG

[willyB]

A couple of years ago I decided to replace the cam at about 20,000 miles to help with the heat on my 2011 CVO Streetglide.

Good thing! Found scored lifter and cam lob just in time.

I think the 110 is a box of junk. Cam, lifter issues. Knocking rockers. Already on 4th compensator.

Love the bike, hate the motor.

[HD Street Performance]

Quite honestly all you did is a partial repair. When a bearing lets go metal travels.
If it were mine I would pull the motor and start from the bottom up. Pull the oil pan and clean it and the same for the oil cooler, if that can be done effectively.
Clean or replace all lines.

The 255 stock cam is noisy, period. The stock lifters are no help and have a short life cycle. New cam and lifters, adjustable pushrods. The cylinder to piston fit and the cylinders need to be checked for taper and size, fix as needed. The crank should be pulled apart, cleaned and checked, trued and pinned at minimum, perhaps rods honed and other work as needed. The new oil pump will need to be cleaned and checked. The heads should be reconditioned with new guides and beehive springs. The main bearings replaced. The piston jets replaced.

Anything less than what I am suggesting, a very high level plan, not too detailed, is a waste of time and money in my opinion.
You will see guys on these forums chasing issues and never getting the reliability possible by doing partial fixes.

[DICKW]

At around 35k I had cams, lifters and pushrods done w/Thundermax.......I really like the performance compared to stock. Currently sitting at 52k.......does she chatter?, sure does

I want an S&S 124 that performs the same or better with less chatter. My goal will be reality when I finally pull that trigger.

[snowrider13]

Tightened mine up at 17,000 miles with new cam Andrews 48, lifters, rocker lockers, bee-hive springs, .010 overbore on the tight side, Malhe pistons, new oil pump (playing it safe). Runs great and a whole bunch quieter. Followed up with a professsional tune by Dyno Dave at Pocono HD. 99HP...114 TQ. It is a shame that HD sends these bikes out in a poor state of tune and slopppy tolerances.

[1roadking]

How about the twin cooled 110 on 14 and newer. Mine seems to run very cool and quite.

[1roadking]

It seems like the week points are the cams and lifters. If you change those early on does that eliminate most problems along with a good tune?

[FLSTFI Dave]

How about the twin cooled 110 on 14 and newer. Mine seems to run very cool and quite.

They still have lifter issues and compensator issues.  I know of a 14 CVO limited who's lifters when out while we were riding mount Rainer, so we were a long way from home, 21K on the bike.

Another friend had his motor replaced in a 15 SERGU for lifter issues at 35K or so miles.

I had my motor replaced on my 15 SERGU with 43K miles on it.

Lifters fail in the 110's.

[Pan1]

2008 CVO road king stage I tune, after initial cylinder gasket recall, 28k with no engine issues other than normal 110 engine valve train noise.

2010 CVO ultra stage III kit. In 55k I had to replace lifters and cams twice due to galling and wear. Other issues such as oil leaks and break system but it never left me stranded.

2015 CVO RG 7,500 miles , going in for 117 kit. I'll let you know what the cams and lifters look like

[HarleyFool59]

Appreciate all the feedback.  Looks like a few bikes out there with over 50K, but very few!  Going to probably end up trading bike in for a 2017 CVO, but dealer tells me they'll have to replace motor, so that's coming off trade-in.     Sure would like to have a bullet-proof motor from the factory with the bells and whistles of a CVO, but doesn't look like that's in the cards.

[DICKW]

  Sure would like to have a bullet-proof motor from the factory with the bells and whistles of a CVO, but doesn't look like that's in the cards.

Different make maybe, but not one of these.....jus sayin 
You basically have to spend 45k for the scoot, then 10k to make it right....... maybe then you'll be close

[kcbike]

89k on my 2012 skunk did get 577 cams pushrods and S&S premium lifters along with TTS mastertune and fullsac DX and 2.25 baffles...030 cometic head gaskets.... contemplating freshening up this winter ...at dyno in June still pulled 106 HP and 118 tq

[Twolanerider]

CVO 110 Engine Longevity?

About 30% (on a good day) what modern standards suggest it should be.

[muddypaws]

Oil pump, cams and lifters at 69,000.