Lifter Knock

Discussion in 'Dyna Models' started by babybiker, Apr 5, 2009.

  1. babybiker

    babybiker New Member

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    I have a 2006 Dyna with 11,000 miles on the engine, the delaer replaced the lifters at 8,000 miles due to knocking, now there are knocking again, Any suggestions, the dealer said not sure why they would start knocking again.
     
  2. Redfish-Joe

    Redfish-Joe Senior Member

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    Check your oil pressure. Perhaps the oil pump relief valve is dumping. If this is the problem then a Baisley relief spring should do the trick. Good luck!!
     
  3. porkchop

    porkchop Active Member

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    Just how bad is this knock? Are you hearing it at certain RPM's or certain gears? Need more info on this! I am fishing here! BTW. do you have a windshield on there?
     
  4. babybiker

    babybiker New Member

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    No Windshield, had one once, used it to ride to Vegas and threw it away when I got there.

    The knock starts when the engine gets hots and it is not consistent, will start then stop and start again, doesn't matter what rpm's Im' at or what gear.

    Okay let me sound blond, how do I check the oil pressure?
     
  5. NEWHD74FAN

    NEWHD74FAN Experienced Member Retired Moderators

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    Some riders with air temperature guage in their fairings replace them with HD oil pressure guage kit in the 2009 HD Parts & Accessories catalog. The dealer will have the 2 page Installation Instruction to show you were the connections are for your model HD SG...

    Loud knocking sounds serious, like overheating and serious pinging issue...I would look into doing some investigation, because it can't be good what ever it is...knocking/spun bearing...or serious lean mixture issues. Check primary chain tension, I thnik you year had auto-tensioner, but inspect to be sure timing and everything is in order that you can reach easily.
     
  6. porkchop

    porkchop Active Member

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    What weight oil are you using? What about mod's and what grade of fuel? Proccess of elimination. Low grade fuel will cause (labor knock) pre det. Using too light of a oil can cause noises. Lugging engine!
     
  7. renegade99

    renegade99 New Member

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    Have you switched types of oil? are you running synthetic oil?
     
  8. Billua

    Billua Active Member

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    Amsoil 15W40 V-Twin oil got rid of my lifter knock..