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Thread: Timing chain noise

  1. #1
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    Default Timing chain noise

    I feel there is some noise coming from timing chain, especially when cold start the bike. I have road prince 70cc bike 17555km done. Please advise how to check it properly because I am not sure about that noise. Or is it need some adjustments?


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    timing chain gs mai tou adjust hojati hai. mine was making some noise i got it adjusted i guess a year ago and still running fine without any noise. gs k engine mai tou bahar se he jga di hui hai to adjust it with L key.
    people need to grow up sometimes and act MATURE !

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    Default

    I think gd,junoon,gs have timing chain tensioner but 70 doesn't so maybe you need to change the timing chain

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    cd70 timing chain tensioner can also be adjusted from engine outside. Adjuster nut is under the engine. Is that noise is really to worry about or normal I am confused. I know some bike knowledge of mechanics but avoid to try before good suggestion.

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    Default

    Quote Originally Posted by alizain5 View Post
    cd70 timing chain tensioner can also be adjusted from engine outside. Adjuster nut is under the engine. Is that noise is really to worry about or normal I am confused. I know some bike knowledge of mechanics but avoid to try before good suggestion.
    Get it changed it wont costs you more than 350 rupees
    Two of the best quotes of Punjabi : 1. Rull tan gae aan! Per Chass aa Gae ai!, 2. Gal Pya Dhol Ty Wajana Penda ay.

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    Its better if you take it to professional and get it checked.
    "Imagination is more important than knowledge"

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    Yea take it to a mechanic

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    Default

    Quote Originally Posted by alizain5 View Post
    I feel there is some noise coming from timing chain, especially when cold start the bike. I have road prince 70cc bike 17555km done. Please advise how to check it properly because I am not sure about that noise. Or is it need some adjustments?
    Dear ali maybe its timing chain noise mostly its not these are tappets noises i notice this thing when bike valves needs adjustment then this kinda of noise become from engine don,t be worry about it & get adjusted your bike valves properly INSHA ALLAH noise will be gone

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    I carefully checked and adjust valve clearance at sharp 0.05mm, one mechanics said "sir awazon ki fikar na karain" and second said "flywheel ki awaz hy". tomorrow I will try to find some professional and see what he say. I also checked same model bike and that one had no noise at idle like mine.
    By the way is changing timing chain need to open the engine or not?

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    No dear no need to open the engine it can be done outside of the engine

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    Yesterday I take he bike to 2 different mechanics. One said its piston rod noise and need to open engine to fix it (cost 2000 approx), the second said its tapet noise (weham hy aap ka sab theek hy). Now I think I keep the bike as it is lets see what happens to my "weham".

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    Dear better opinion is that change your engine oil brand how much kilometers have done your bike until now?

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    I already done 17700km on bike, and change engine oil every 1000 to 1200km interval and drive very carefully around 40-60kmph. I always use Shell 20w50. Every mechanic tells my different story. It's hard to describe the noise but it's kinda scratchy airy noise {schh schh schh schh WHEN IDLE} (please don't mint), I can mail recording of sound that comes from timing chain side.

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    The new Honda CD 70 or its clones have automatic timing chain tension adjusters so once noise started cannot be further adjusted. With engine running & wear & tear some noises arises from engine which do not directly relate to any defeciency in performance so the noise in your case is such a thing, the relatively more noise on cold start & then gradual reduction is very common thing so dont worry & keep it running till it becomes permanent noise other wise replacement of Chain & its roller can be done in ~500 Rs
    Exploring Machines is my Passion...

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    That is exactly as you said, because few good known mechanics also said me the same thing, and as far as performance is more than i can expect from chines bike. 40 km+ per day on Pakistan roads, i think its challenging for low cast motorbikes buts its doing good job after all.

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