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Sumping in un-modfied HD117CI CVO

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Old Mar 6, 2020 | 05:53 PM
  #141  
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Originally Posted by Cruiser1
"More bad news"

I have just returned from the shop to check on my bike. I will ride it this afternoon.

It turns out that the 3rd bike with the 114 inch stage kit that sumped had the latest new 8 lobe 2020 pump installed at the time of the upgrade. This is the first instance that I have heard of a failure with the new pump. After talking with the mechanics I was not encouraged, as the redesign may not be enough to cure the problem.

Here are the pictures of the sumping stock 2019 CVO with a partial tear down. I took some close ups of the pistons. You will note that the skirts are cracked on both pistons, with portions of the skirt actually broken off.

Bad piston 1

Partial tear down of sumping bike

Bad piston

Partial tear down 2
2
This may be a cylinder out of round issue, or perhaps piston oilers. Not sure I could pin that on sumping. Did the dealer specifically say that they thought sumping was the cause here?

Edited: Since they have the inner primary torn down, looks like the engine is toast. Crank is probably gone.
 

Last edited by VDeuce; Mar 6, 2020 at 05:56 PM.
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Old Mar 6, 2020 | 06:11 PM
  #142  
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Originally Posted by strych9
I don't buy this BS for one minute. You're Mr. **** to the Nth, and you expect us to believe you walked away from the dealership with no paperwork detailing these major repairs? I'm now beginning to think none of it ever happened to you. Clearly, you've just admitted that you have no proof that it did.

Very telling.
Lol... I guess I fabricated 1.5 years of my HD saga with 3 engine replacements, photoshopped all the pictures of my engines, oil pumps and pistons. Made up all the part #s and replacement installations. And then I suppose I had Hollywood make the movie below (instead of the HD mechanics) showing 40 ounces of boiling Syn3 oil pouring out of the Crank Position Sensor on my sumped engine #2. Yeah sure.. it's all made up. You Fanboyz really can be thick.... but you sure are funny.

58 pages of details on this thread I started in June 2017 on #1 & #2 sumping engines https://www.hdforums.com/forum/milwa...ddressing.html
And 13 pages of details on this thread I started in April 2018 on #3 sumping engine https://www.hdforums.com/forum/milwa...-it-again.html

If it really mattered, the VIN could be easily looked up for all the details on the 3 warranty engine replacements ... but it's of no importance to me since it's been 1.5years since I owned that specific bike

Yeah I was just making it all up. I wish!!


.
 

Last edited by Heatwave; Mar 6, 2020 at 08:09 PM.
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Old Mar 6, 2020 | 07:06 PM
  #143  
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So I believe we have had proof that 2 bikes had issues here , these 2 bikes with warranty paperwork have proof.
And we now have a precedent for proof and it is the only proof to be credible.
Guys I hope your bikes run strong now.
Stay upright.
 
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Old Mar 6, 2020 | 08:02 PM
  #144  
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Originally Posted by Agoober
So I believe we have had proof that 2 bikes had issues here , these 2 bikes with warranty paperwork have proof.
And we now have a precedent for proof and it is the only proof to be credible.
Guys I hope your bikes run strong now.
Stay upright.
Actually the answer is NO... we’ve decided we’re purposefully going to keep all evidence from guys like you. This way you can keep saying there’s no such thing as sumping while guys actually experience it. Lol
 
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Old Mar 6, 2020 | 08:42 PM
  #145  
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Agoober, thanks. Will go on a 300 mile ride tomorrow to shake it down.
 
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Old Mar 6, 2020 | 08:43 PM
  #146  
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Originally Posted by Mchad
New people turn 60 every day. With longer lifespans and healthier older age due to medical advancements, I would say this demographic is growing, not shrinking...


New People? Sounds more like old people.
 
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Old Mar 6, 2020 | 08:55 PM
  #147  
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Anyone that thinks the seized pistons were the result of sumping need to seek help. That issue is more than likely a bad tune and/or improper assembly.

Places I worked, we built stuff. The stuff was pretty complex. During initial bring up we had failures. The rule of thumb was that all new failures fell the guy that had the last failure. It was his/her issue until the issue pointed to someone else. Then all issues belonged to them. The sumping thing is the same.
 
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Old Mar 6, 2020 | 09:32 PM
  #148  
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Brandon, Basically I have been looking for common denominators on the sumping issue. Obviously you can have a correlation which may not be a causation.
1.) It seems that bikes that are operated at high power settings for a protracted period are prone to this problem. High power means high thermal output.
2.) Those bikes that are hopped up with high horse power engines also seem to be susceptible, again they have a higher heat output.
3.) The twin cooled bikes also seem to be more vulnerable for the same reason.

If you every watch NASCAR you will see that at times the cars will get a piece of paper on the front of the car covering the radiator inlet. Usually the crews get very worried when their water temperatures approach 300 degrees. I have seen postings were owners have said that their oil temperatures were in the 300 to 350 degree range. I have not checked the temps on my own bike, but I can say that on the highway the engine was getting hot enough that it was burning my right leg, right through the jeans. I have another brand of bike where I can monitor the engine temps, and they routinely run in the 185 to 200 degree range.

So what does temperature have to do with sumping. I am not an expert on fluid dynamics, but I do know that modern oils are designed to operate best in certain temperature ranges. Once the fluid's viscosity starts to break down its ability to lubricate, in essence to keep moving parts from coming into contact with each other, is compromised. This change in viscosity also affects the ability of the fluid to flow since its friction characteristics are altered. This altered flow may have an adverse impact on the efficiency of the engine's oil pump or the rate at which the oil circulates through the engine.

What do you think?
 
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Old Mar 6, 2020 | 09:43 PM
  #149  
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Max, perhaps you have not read back through this thread. None of the 3 117's that have had this issue had any engine work nor did they have any special tuning, just the
SE Street Tuner. My bike also had the Smart Tuner Pro.

If we go back to the last assembly technician then that would be at the factory.
 
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Old Mar 6, 2020 | 10:08 PM
  #150  
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Originally Posted by Cruiser1
Max, perhaps you have not read back through this thread. None of the 3 117's that have had this issue had any engine work nor did they have any special tuning, just the
SE Street Tuner. My bike also had the Smart Tuner Pro.

If we go back to the last assembly technician then that would be at the factory.
So none of these engines have had upgrades? If they are not 2020 engines and they have not been upgraded with HD’s stage kits, then how could any of them have 8-lobe oil pumps. The 2020 8-lobe oil pumps were not released until the very end of May 2019 when the manufacturing line was being converted over to making the 2020 bikes?

Did I misundertsand which bike’s have sumped? You stated “It turns out that the 3rd bike with the 114 inch stage kit that sumped had the latest new 8 lobe 2020 pump installed at the time of the upgrade.”

But now it sounds like all 3 bikes were factory 117s.
 

Last edited by Heatwave; Mar 6, 2020 at 10:13 PM.
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