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Engine Tapping Sound

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Old Sep 18, 2024 | 04:53 PM
  #21  
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Originally Posted by Tommy C
If the rod bearings are failing, there should be metal particles in the oil filter media. It is a good idea to cut the oil filter open and inspect the media for debris from the bearings.
Yes it can be delivering metal to the filter.

In this 107" motor's case, I rode it for at east a month with the knocking squeaking trying to blow the motor. When I decided to tear it down I found lots of brass in the oil from the flywheel thrust washers, but no bearings were there yet. This was a stock lower end, so no surprise due to the way it was ridden.



 
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Old Sep 18, 2024 | 05:15 PM
  #22  
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Lifters are a limited-life, service item, you should never let them go past 50K miles, without at least inspecting them. I am amazed your bike got to 240K, if it in fact has that many miles on it without a lifter and tensioner service.

I would suggest you create a proper service schedule for your bike...
 
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Old Sep 18, 2024 | 05:32 PM
  #23  
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Originally Posted by Ohio HD
Maybe I hear things that you don't.
No gears, a simple 107" with Andrews 55 cams and chains.

I'll bet its lifter roller(s) or rod bearings.
Definitely not rod bearings.. I'll put a beer on that...
 
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Old Sep 20, 2024 | 03:48 AM
  #24  
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Originally Posted by Rounders
I also don't know why you would add air, leaning out stock bike
I like the Screamin' Eagle Ventilator Air Cleaner. It's low profile provides me with increased leg room for a more comfortable ride. It's exposed air cleaner element provides increased air-flow. As mentioned in post #1, I also have a Dynojet Power Vision to adjust the tune.


Originally Posted by Jackie Paper
Can you add a different format for your sound clip?
The recorded format was originally MPEG-4 Audio or "m4a:", from my iPhone. That seems to be an unsupported file format to use for uploading to HDForums. I converted the audio file to "mp3", so that I could upload the sound file. What format do you need?


Originally Posted by Soundman5000
would it hurt to try snake oil and plan on a rebuild over the winter months?
I would not ride it far without good towing insurance if at all.
Fall season is prime riding time for me. Rebuild over the winter months is preferable. I do have towing insurance. Both AAA Premier/RV that has 200 mile towing and HOG towing from my lifetime HOG membership.


Originally Posted by 98hotrodfatboy
To me it definitely sounds like a lifter collapsed and what I'm hearing is a loose pushrod in the rocker arm.. I wouldn't tear down the top end but cut the pushrods, seeing you have new adjustables.. Carefully inspect the ball ends of the pushrods for abnormal wear , especially the top. If so you will need to disassemble the top end to inspect the rockers.. 240k is a lot of miles.. I would do the S&S TC3 pump and plate.. Best out there.. Don't forget to check pinion run out.. Curios to see what the pinion shaft did to the OEM cam plate.. Also for $100 I would probably be doing both chains..
Don't forget, A lot of Pic's..
Note: before you purchase anything do the tear down and inspect first.. Then make your list..
I pulled the trigger and ordered the S&S TC3 pump and plate. Received it yesterday. It was expensive, but since I'm doing the work myself, thought I'd splurge.
Ordered the following parts from my local HD dealer. This will get me both chains.
Camshaft Chain & Fastener Kit: HD #25585-06
Secondary Cam Drive Chain: HD #25683-06
I'll check run out and take lots of pictures.
I'll probably also be asking various questions......
 

Last edited by LQQK_OUT; Sep 20, 2024 at 04:27 AM.
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Old Sep 20, 2024 | 03:52 AM
  #25  
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Originally Posted by Dan89FLSTC
At that mileage, any tapping sounds are a clear message to open up the cam chest.

The lifters don`t owe you a thing.

I would also replace inner cam bearings and the cam chain tensioners.

http://www.larrysmotorcyclemachine.com/lifters.html
Planning for this day, I've purchased the following parts a few years ago.

Cams: Andrews 48H
Pushrods: Fuel Moto EZ Quick Install adjustable pushrods for H-D Milwaukee-8 and Twin Cam engines, SKU: FM-PR-EZ
Lifters: S&S Cycle Premium High Performance Tappets, 330-0175
Head Gasket: Cometic Gasket Head Gasket - MLS - Standard Bore 3.70" - .040" - C9745
Cam Service Gasket Kit: Cometic C9664 Gasket CAM Kit GSTK 99-17 0934-0786
Inner Cam Bearing: 2 x Koyo/Torrington B-168
TC96 Cam Spacer Kit: HD #25928-06
Breather Baffle Assembly, 2 x HD #26500002
Cam Chain Tensioner Pads: 2

 
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Old Sep 20, 2024 | 04:26 AM
  #26  
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Originally Posted by Spanners39
Lifters are a limited-life, service item, you should never let them go past 50K miles, without at least inspecting them. I am amazed your bike got to 240K, if it in fact has that many miles on it without a lifter and tensioner service.

I would suggest you create a proper service schedule for your bike...
Yes, 240K miles. Never replaced the lifters or tensioners. This bike even has the original OEM stator! Plus I ride with an electric jacket and gloves in the winter and I have a 300 watt amp in the fairing. So, the electrical system does get taxed. I did replace the voltage regulator this past March (2024), when I noticed on a fairly cold lunch run that the needle on my voltage gauge fluctuated a few times sporadically. After lunch my motorcycle wouldn't start. Friend had a jump pack, was able to start the motorcycle and ride it back home. Installed a Cycle Electric CE-607. No battery/starting problems since the new voltage regulator replacement.

Why do you say a lifter shouldn't go past 50K? My 1993 Fatboy must have over 80K on it's lifters.
I think I maintain my motorcycles. They've been fairly reliable.
I'm on my third compensator, OEM compensator, SE Compensator and the second SE compensator.
Last year (August 2023, 207,714 miles), I had to replace the crank sprocket shaft oil seal since engine oil was flowing into the primary.

And I only use Mobil-1 15-50 car oil from the 5-quart jug at Walmart.



.
 

Last edited by LQQK_OUT; Sep 20, 2024 at 04:33 AM.
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Old Sep 20, 2024 | 05:36 AM
  #27  
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That all is impressive.. 👍
 
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Old Sep 20, 2024 | 08:47 AM
  #28  
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A lifter can go past 50, but it is a time to start thinking about it. If it lets loose you loose your engine. Buddy m8 lifter went out, they gave him a new engine.

If it is making noise, I think poor idea to ride. You risk bottom end.
 
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Old Sep 20, 2024 | 08:50 AM
  #29  
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As for your plan to be towed home, you can wait for hours. I use my bike for work. If you had 3 beers and are .o..081 and cop asks if you need help, dui.

But I just don't want to wait for hours for tow truck.

Get a ow truck on a Sunday. Plus so many areas without cell coverage, even near big cities
 
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Old Sep 20, 2024 | 09:41 AM
  #30  
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The 50000 mile limit was put on EVO lifters. TC amd M8 are different. There is an issue with 99c lifters tho. The roller pin can come loose due to its change in design. Still lifters cam make the mileage if on the right side of the specs.
 
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