Rattleing noise - '98 piaggio NRG

Discussion in 'The Workshop' started by Renllek, Feb 11, 2018.

  1. Renllek

    Renllek Member

    Messages:
    51
    Got a strange rattling from a newly built engine with a S6 streetrace cylinder and Doppler SR1 crank. I cannot quite pinpoint where its coming from, not quite sure if its normal (dont think so) or if its possibly a big end or little end bearing.

    There is no play or grinding in the main bearings so i have ruled that out, have also run the engine without the variator or clutch on and the noise is still there so rules them out too.

    Sound is definitely coming from the crank area but just want someone else's input before i go stripping it down again.

    If it is a bearing fingers crossed its the little end, as i dont fancy having to split the case and fork out for a new crank :(

     
  2. Renllek

    Renllek Member

    Messages:
    51
    Well stripped it all down and its the big end bearing :mad:

    Thankfully i have 2 engines and the original engine is currently sitting on the side so will just stick that back in. :D
     

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