unusual engine noise
  • pollebm
    Posts:12
    Joined:Tue Aug 18, 2015 1:44 am
    unusual engine noise

    by pollebm » Tue Aug 18, 2015 2:03 am

    hey guys
    got an unusual noise coming from my 2008 CRF250R engine. have no idea what it could be and it doesn't effect it at all.
    anyone know what it might be?
    https://youtu.be/pRTCdOw0v6E
  • pollebm
    Posts:12
    Joined:Tue Aug 18, 2015 1:44 am

    by pollebm » Tue Aug 18, 2015 6:39 am

    or does that sound normal?
  • User avatar
    JimDirt
    Posts:4406
    Joined:Sat Nov 25, 2006 6:31 pm

    by JimDirt » Tue Aug 18, 2015 7:36 pm

    Welcome to the site !! \:D/


    Did you just buy it or have had it for a while ?? , if you have had it for a while , i am guessing the noise just started ??

    It could be timing chain , but its hard to tell , if its the quick ticking that increases with RPM , then that is what i would say it is , the timing chain , other than that the rest of what i think i am hearing sounds "normal"
    2020 CRF450R
    2006 CRF450X
    Image
    Weiser , Idaho
  • pollebm
    Posts:12
    Joined:Tue Aug 18, 2015 1:44 am

    by pollebm » Tue Aug 18, 2015 8:33 pm

    JimDirt wrote:Welcome to the site !! \:D/


    Did you just buy it or have had it for a while ?? , if you have had it for a while , i am guessing the noise just started ??

    It could be timing chain , but its hard to tell , if its the quick ticking that increases with RPM , then that is what i would say it is , the timing chain , other than that the rest of what i think i am hearing sounds "normal"


    i only just bought it about a week ago but it was from a family friend that we go riding with and the noise has always been there while they've had it too. but the sound i'm talking about is a bit like a noisy fan
  • pollebm
    Posts:12
    Joined:Tue Aug 18, 2015 1:44 am

    by pollebm » Tue Aug 18, 2015 8:53 pm

    and thanks for the welcome :D
  • pollebm
    Posts:12
    Joined:Tue Aug 18, 2015 1:44 am

    by pollebm » Tue Aug 18, 2015 9:14 pm

    oh and do you think you could link me with something to adjust the timing chain if possible, like a tutorial or something.
    thanks
  • User avatar
    JimDirt
    Posts:4406
    Joined:Sat Nov 25, 2006 6:31 pm

    by JimDirt » Tue Aug 18, 2015 9:24 pm

    The timing chain Tensioner is "self adjusting" , which means if the chain is noisy then it most likely needs replacement , not sure on how the original owner did maintenance , but if it had a Piston replaced , then the Timing Chain should have been replaced at that time

    Since you know the owner , it will be easy for you to get that info , and if the chain has not been changed (especially if it has not been done since new) , then it definitely needs to be done , a lot of people go to a Manual chain tensioner for the timing chain , i personally prefer the stock self adjusting one , i have not had one fail , but they do fail occasionally , the chain , just stretches over time , and is considered a "wear" item , and is usually replaced with each Piston change
    2020 CRF450R
    2006 CRF450X
    Image
    Weiser , Idaho
  • pollebm
    Posts:12
    Joined:Tue Aug 18, 2015 1:44 am

    by pollebm » Tue Aug 18, 2015 10:12 pm

    JimDirt wrote:The timing chain Tensioner is "self adjusting" , which means if the chain is noisy then it most likely needs replacement , not sure on how the original owner did maintenance , but if it had a Piston replaced , then the Timing Chain should have been replaced at that time

    Since you know the owner , it will be easy for you to get that info , and if the chain has not been changed (especially if it has not been done since new) , then it definitely needs to be done , a lot of people go to a Manual chain tensioner for the timing chain , i personally prefer the stock self adjusting one , i have not had one fail , but they do fail occasionally , the chain , just stretches over time , and is considered a "wear" item , and is usually replaced with each Piston change


    cheers
  • pollebm
    Posts:12
    Joined:Tue Aug 18, 2015 1:44 am

    by pollebm » Tue Aug 18, 2015 10:32 pm

    JimDirt wrote:The timing chain Tensioner is "self adjusting" , which means if the chain is noisy then it most likely needs replacement , not sure on how the original owner did maintenance , but if it had a Piston replaced , then the Timing Chain should have been replaced at that time

    Since you know the owner , it will be easy for you to get that info , and if the chain has not been changed (especially if it has not been done since new) , then it definitely needs to be done , a lot of people go to a Manual chain tensioner for the timing chain , i personally prefer the stock self adjusting one , i have not had one fail , but they do fail occasionally , the chain , just stretches over time , and is considered a "wear" item , and is usually replaced with each Piston change


    oh and when you refer to the timing chain do you mean the cam chain? thanks a lot for the help
  • User avatar
    JimDirt
    Posts:4406
    Joined:Sat Nov 25, 2006 6:31 pm

    by JimDirt » Wed Aug 19, 2015 6:58 am

    Yes , cam chain/timing chain
    2020 CRF450R
    2006 CRF450X
    Image
    Weiser , Idaho
  • Aussiecrf230
    Posts:1964
    Joined:Fri Jan 06, 2006 11:11 pm

    by Aussiecrf230 » Wed Aug 19, 2015 5:51 pm

    Welcome Pollebm, good to see another Aussie.
    Ray
    Australia

    CRF230F 2004
    C30F Power Up needle
    Mains 132
    Idle 45
    2 turns out
    Baffle out, Screens In

    It starts,it runs,it gets to where all CRFs can get to without the valve or valve plate dramas
  • pollebm
    Posts:12
    Joined:Tue Aug 18, 2015 1:44 am

    by pollebm » Thu Aug 20, 2015 2:17 am

    Aussiecrf230 wrote:Welcome Pollebm, good to see another Aussie.

    cheers

Who is online

Users browsing this forum: No registered users and 3 guests