Question about 2006 Harley Davidson FLHR Road king

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Valve noise 2006 road king

2006 road king with 20,000 miles starting to hear alot of valve clatter.have heard maybe the timing chain tenseniors?

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Hello redevil67...This is normal for the HD engine, it going to have valve train, top end noise at some point, some as early as 2000 miles. If you take it to the dealer they will try to sell you on worn tappets...key word here SELL..I've seen this many times, dealer replaces componets, 2000 miles later the noise returns.
These are hydraulic valves and as you probably know they operate at zero lash. Personaly, i feel that the problem is that the cams are not hardened properly or machined incorrectly.. When the leading edge of the cam lobes wear to a strange profile it tends to snap the lifter up in the lifter bore. This causes the rest of the valve train to rattle. You hear the noise on top but the culprit makin it, is the cams..Many chose to go with an aftermarket cam, such as an andrews...Another suggestion, is to switch oils. Don't know what you are useing now, but i'm not a fan of dino oil. As the temperature builds the more an oil is stressed. Lucas full synthetic 20w-50 or Mobil1 15w-50 are both excellent for anti-wear and long term protection.
I hope this helps, please rate me a fixya and good luck with your bike.

Posted on Jul 30, 2009


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Bike has annoying ticking noise from mostly rear is a 2000 shadow spirit, with 33000 miles, i was told valves needed adjustment at 30,000 miles , along with timing chain adj.. is this correct?

Without being able to stand next to the machine and listen it would be very hard to say what the noise is. Valves are generally easy to adjust and if loud have a high pitched tick sound. Cam chain adjusters generally self adjust and are reasonably quiet. If the automatic adjuster goes bad it will generally make a clatter sound or a loud clack. One thing you have not considered, if the the exhaust gaskets in the head go bad or leak air, they can also produce a loud ticking sound. You often hear this sound in older V8 engines. It sounds like a lifter is bouncing around inside the motor but the sound is caused by a blown gasket between the head and exhaust manifold. If you experience some popping/backfiring during deceleration try replacing your exhaust o-rings in the heads. This may solve both problems. If the problem is internal to the cylinder you may need to change a bad cam chain adjuster. As always start with the cheaper fixes and work your way up. Adjust valves and cam chain tensioner if not self adjusting, replace the exhaust gaskets next, and if that does not fix it, replace the cam chain tensioner. Hope this helps.

Aug 30, 2011 | Honda VT 1100 C Motorcycles

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I have a 2003 Harley road king Police bike. I have 10000 miles on it. I am erperiencing a chinging sound when downshifting. I suspect the tension on the small chain inside the transmission. Is there a way...

I'm sorry but there is no chain in a Harley transmission. The only chains on your bike is in the cam chest of the engine. They drive the two camshafts that operate the valves.

Now, most of the time when riders complain about a "chirping" noise when they shift gears, it's because the final drive belt is too loose. It will make a noise every time you shift a gear, up or down. Check the tension on your rear belt and see if that helps.

Good Luck

Apr 12, 2011 | Harley Davidson FLHR-FLHRI Road king...

1 Answer

2005 Road King oil light came on this morning when I started it. I turned it off, garaged it and went to work in my truck. Gonna go trouble shoot tonight. its only got 6,400 miles on it. what might it be?

I've heard the Twin Cam oil sensor located in the front of the cam chest is prone to giving problems. Start the engine and listen. If the engine sounds normal, check to see if you can determine oil flow back to the oil tank. I'm pretty sure the Road King oil tank is on the bottom of the transmission which is going to make this difficult. But, the fact still remains, if you do not have any oil pressure, your tappets will clatter like hell. It will be obvious that you don't have oil pressure. Check the wire to the sensor on the front of the "nosecone".

Good Luck

Jan 18, 2011 | 2005 Harley Davidson FLHRS - FLHRSI Road...

1 Answer

I have 250000 miles on this 4.3L "w" Vortec engine, I was going down the road and missing randomly then big backfire, won't start, I have changed everything I can think of like wires, rotor, cap...

If you have replaced the timing chain please disregard my answer, I'm risking my rating because I want to help you for free.
If the timing chain has not been changed that the problem might be an overstretched timing chain.

As timing chain accumulate mileage, chain stretch, sprockets wear out, and set the valves off timing. Most chains go up to 100000 miles or more, but not always. As a rule when there is more than about half inch of play between the gears on a V6 or V8, it is the time for a new timing chain and sprockets.
It is not unusual for a timing chain to accumulate 200000miles, but I remember a car, with broken timing chain, with only 160000miles on it, the valves were bent and a hole was put on the piston.

Signs of worn out timing chains are:
Rough idle.
Sluggish performance and poor economy.
Sudden engine performance change including the inability to start the engine.
Intermittent backfire through the intake manifold.
Inconsistent ignition timing or a clattering noise coming from the front of the engine.
It is a good idea to replace the water pump (coolant pump), and the thermostat while replacing the timing chain.
The cost of the replace of timing chain is at least +$1300, but if is to bad, we pull out engine and replace both guides. In this case might cost more.
Please do not be mad with me. I'm a certified dealer, and I'm trying to give you the necessary information to help you to deal with the problem.

Nov 03, 2010 | GMC C1500 Cars & Trucks

1 Answer

At 20,000 miles, my 2004 HD Road King started making a kind of rubbing or grinding noise from the right side of the motor below the air cleaner. What's the most likely problem?

Cam chain shoes? Get it checked ASAP. If the shoe(s) fail completely, you are in for a big expense as it spreads broken pieces throughout the motor by poor design.

May 06, 2010 | 2004 Harley Davidson FLHRCI Road King...

1 Answer

2006 Road King twin cam,26,780 miles. Metal pieces in crank case oil, motor making unusual noises, Something coming apart inside motor. Synthetic oil used since new. nothing in owners manuel regarding this...

Sorry to hear about your problem but it does happen. With the mileage that you are showing on your speedo, I would guess that your problem is a tappet roller has gone bad. This is a problem with Harley's. Between 20K and 30K miles is the prime time for a tappet roller to fail. I have seen them fail with as little as 13K miles on the engine but then I've seen them still running at 75K. Just "luck of the draw" so to speak.

One of the reasons Harley designed the "Twin Cam" engine was an attempt to solve this problem. They thought that if they could bring the valve train geometry closer to being perfect, straighten out those pushrods, that would solve the problem. Like a Sportster. I don't think I've ever heard of a Sporty losing a tappet roller. I don't hear about tappet roller failure as often as I used to and that may be the reason.

Now, keep in mind that without hearing your engine or doing any exploratory surgery on it, I'm just guessing here. It could be virtually anything. Disassembly and investigation is the only thing that will tell the story.

I'd advise doing that pretty soon as well. If you've got metal in your oil, it's doing damage all in the engine. I'd go ahead and take it down if I were you. Good Luck.

Jan 17, 2010 | 2000 Harley Davidson FLHR-FLHRI Road king

2 Answers

2001 H-D Road King engine knock

For valve train noise try these:
1. Low oil pressure caused by oil feed pump not functioning
properly or oil passages obstructed.
2. Faulty hydraulic lifter(s).
3. Bent push rod(s).
4. Incorrect push rod length.
5. Rocker arm binding on shaft.
6. Valve sticking in guide.
7. Chain tensioning spring or shoe worn.
8. Cam(s), cam gear(s) or cam bushing(s) worn.
9. Cam timing incorrect.

If it is a bottom end knock, an engine tear down may be in order.

May 30, 2009 | 2000 Harley Davidson FLHR-FLHRI Road king

1 Answer

I'm hearing a little valve noise on my 06 Road King. I've got 14k miles on it now. I've been running 10-40syn oil in it. Should I run 15-50 or just take it to the shop and get the valves adjusted. The...

get your valves adjusted at any Harley mech, it's not a big job, but will ensure you don't burn a valve,a get all the power your engine supplies....Good Luck to you friend...Tim

May 14, 2009 | 2006 Harley Davidson FLHR Road king

1 Answer

2006 Road King

Harleys are known for their shaking but when they get really bad I usually start looking for broken motor mounts. I suspect you either have a lose one or broken. The rubber wears out and then they get obnoxious.

Dec 07, 2008 | 2006 Harley Davidson FLHR Road king

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