Valve Clatter

Question for Fix My Hog 2008 Harley Street Glide. I have a heavy valve clatter when trying to take off easily from red light etc…at low rpms.

Via Email

Fix My Hog Answers Make sure you are always using 93 octane of quality fuel. Depending on how many miles are on this m/c, you may be due to freshen up this motor.

Related Fix My Hog Videos:

Harley Valve Job

http://www.fixmyhog.com/video/harley-top-end-removal-008743/

Have more questions? Check out our Q&A index page to find some answers.

Discussion
  • (will not be published)

17 Responses to “Valve Clatter”
  1. ANTHONY

    I have an 09 tri globe and when it get warmer out it gets clatter noise and it run like its on one cyclender like a bad spark knock can it be the compensates sprocket only when on the warm end like air temp 80 or more.

    Reply
  2. gene abbott

    I have a 2013 Ultra Limited, it also sounds like a coffee can full of rocks and always has. My dealer said it was normal for that year. engine clatter is not normal ever! she is crowding 50k now! I was told from a independent machinist that putting in a different Oil pump would fix it. Is this true?

    Reply
  3. ken buzzell

    The answer to ”valve clatter” inquiry seems to assume that the person does not know the difference from ”valve clatter’ and ”spark knock”. The first thing I would say is – are you sure it is valve train clatter and not spark knock?
    Too low of octane fuel and a few other things can cause ”spark knock”, but not lifter clatter. The mileage on the lifters could be an issue, but they’d have to be very high miles to hear them on take off I feel. One should consider hydraulic lifter replacement after roughly 35K on Harley. However, big cam (s) may need it sooner while many stock engines go 50K plus miles easily. Of course there is always a chance of even a new lifter failure. Remember these are assembled mechanical devices and its possible to bad from the start.

    Reply
  4. Binny

    Is he referring to a valve/valves needing an adjustment, or detonation in the the combustion chamber?….just wondering

    Reply
  5. broncobuster698

    I get that on my 04 ultra, but it was adjustable pushrod we’re to lose, readjusting cured problem.

    Reply
  6. bruce kallestad

    Ticket 19965 Please define what you mean by “freshen up”. I have a 09 Road King with 110,000 miles and I’m sure it would qualify for a freshen up ,whatever that means.

    Reply
    • Customer Service

      Dear Bruce,

      Thank you for your patience. In regards to your question-

      We mean, rebuild.
      The extent of rebuild can not be determined until a motor is broken down and accessed.

      Sincerely,

      Mark
      Fix My Hog Video Membership

      Reply
  7. Derrick Hillier

    HD had issues with there’07/’08 bikes.Other bike repair shops have advised me to stay away from these model years.

    Reply
    • Bob Cuculich

      Re: the comment about 07/08 being bad years… I have an ‘08 Ultra with over 65k miles, all stock, do at least one 4-5,000 mile trip every year, ride it every month of the year, and do all my own routine maintenance, religiously every 5K. Never a problem, or a drop of oil under her. Only issues I’ve ever had are things like poor connections between pins on a connector plug. Heck, even the original battery lasted 8 years, but it’s always connected to a battery tender if I’m not going to ride for more than about 1 week. Nothing is perfect. Anything mechanical can, and will eventually need repair, but to say an entire year’s build is bad will always be an exaggeration.

      Reply
  8. ryster1

    It might help to install a set of “Rockets Lockers”. They keep the rocker arms tight against the bolt that is supposed to keep them tight. This kit available on e bay has brass inserts you install into the bolt holes and no more noise! A lot of people think it’s valve noise or lifter noise when it’s not. Check it out!

    Reply
  9. KeithK

    I have a 2013 roadglide ultra it has 26000<it seem to have some more then normal chatter it do es not seem right to me but the two Harley shop says nothing rong just don't get it there some noise there just let me know what you think thanks KW

    Reply
    • LAWRENCE

      Ticket 21804 I currently have a 2017 Road Glide Special with the one 07 engine. I bought it with 700 miles it currently has approximately 1700 months. Runs like a top the engine is quiet as can be. I also own a 2018 Fatboy 114. And it has a very annoying noise coming out of the engine at which disappears at 25 and 1/2 to 2600 RPMs and then it is totally gone. I always use 93 octane sure. It was service 1000 miles from Harley so has a proper or else. To me it sounds like something is spinning and tapping against the tin can actually an aluminum can. Very annoying I tried to keep the RPM’s above 2600 just so I don’t have to listen to this. Is there work from takeoff why don’t we have to 2600 pmj and it’s embarrassing my $21,000 bike sound like a piece of crap. Is this the noise that you are talking about as being normal?? I don’t think any engine should make that type of noise as being considered normal. Any suggestions and is your rattle sound disappearing at 2500 RPMs? And if it is normal why doesn’t the 107 engine do it as well they are both Milwaukee eight engines.?

      Reply
      • LAWRENCE

        Sorry there were a couple of speech to text errors in there. The noise is from takeoff all the way up to 2550 RPm. Then it disappears. Bike has approximately 1800 miles on it now and it had its 1000 Mile service at a Harley dealership with synthetic oil . Oes the noise that you other guys are hearing disappearing at 2600 RPM? Mine is definitely and is always gone and 2600 RPMs. My bike sounds like crap it’s embarrassing to take off from a light with this noise going on. It makes Harley brand sound and cheaply made and it should not be considered normal. These are both Milwaukee eight engines that I have. The 107 is quiet the 114 is not. By the way the 114 has stock OEM Mufflers. While is 107 has Vance & Hines oversized mufflers. And you may be thinking the Vance& Hines pipes are covering up this chatter in my 107 ,but no,they are quiet Vance & Hines and I can hear my engine. Any suggestions?

        Reply
      • Customer Service

        Dear Lawrence,

        Thank you for your patience. In response to your question-

        The Fatboy has a bigger motor.
        All of the 110 & 114s are known to be a little noisy. We are yet to see one that is quiet and we probably won’t. You are hearing the valves slamming closed against the valve seats.
        If, however, you feel that something is mechanically wrong, we highly recommend taking the bike back to the dealership while your warranty is still current.
        https://www.fixmyhog.com/video/how-to-search-fix-my-hog-008641/
        https://www.fixmyhog.com/video/welcome-to-fix-my-hog-site-review-008131/
        https://www.fixmyhog.com/video-index/

        Sincerely,

        Mark
        Fix My Hog Video Membership

        Reply
  10. LAWRENCE

    Sorry there were a couple of speech to text errors in there. The noise is from takeoff all the way up to 2550 RPm. Then it disappears. Bike has approximately 1800 miles on it now and it had its 1000 Mile service at a Harley dealership with synthetic oil . Oes the noise that you other guys are hearing disappearing at 2600 RPM? Mine is definitely and is always gone and 2600 RPMs. My bike sounds like crap it’s embarrassing to take off from a light with this noise going on. It makes Harley brand sound and cheaply made and it should not be considered normal. These are both Milwaukee eight engines that I have. The 107 is quiet the 114 is not. By the way the 114 has stock OEM Mufflers. While is 107 has Vance & Hines oversized mufflers. And you may be thinking the Vance& Hines pipes are covering up this chatter in my 107 ,but no,they are quiet Vance & Hines and I can hear my engine. Any suggestions?

    Reply
    • LAWRENCE

      One thing I should add ….this noise is there not only on take off where you would expect low octane fuel to cause a spark knock. The noise is there whether you’re just cruising down the road casually or under power .anytime I am under 2600 RPM the noise is there.

      Reply