Sqeaking from kahlkoff Impulse Kranks

[jambonsambo]

Hi

I have a Kahlkoff Pedelec here has a very loud annoying squeaking coming from either the cranks or bottom bracket . There is an impulse engine on it . I took off the chainring and greased everything up but no improvement . I cant see where the crank would be rubbing the chain guard or anything like that .

This noise is there regardless of weather the motor is in use or not and only when pedalling .

Its a squeak very much like what a mouse would make but I suspect no rodents in the frame .

If it were a regular bike I'd suspect bottom bracket bearings .

Ive eliminated pedals being the source too .

Is there a way to acceccs Bottom bracket bearings and change them or regrease on an impulse motor ?

Any tips much appreciated .

J

 

[soundwave]

if it has warranty dont touch it and take it back for a refund.
http://www.pedelecs.co.uk/forum/threads/ongoing-reliability-of-kalkhoff-focus-impulse-2-motors.24290/

 

[steven2002]

If it has the square type cranks probably needs tightened or more than likely crank replaced.