Guys
C5 number 1 never makes a sound but number 2 always makes the machine gun noise when starting unless helping with a good pedal.
I have read where a cable tie on the motor braces it to stop it , or help to stop it.
Questions; What is actually slipping and what are we trying to brace with a cable tie please?
Regards

hi there the belt is slipping and the cable tie keeps the thin plastic support under the motor it keeps the motor parallel

Area51
Many thanks for your prompt answer, I can do that. I guess first thing is to make sure the belt tension is correct by rotating the motor.
Regards

That's correct but not guitar string tight
Otherwise you will strain the bearings and put
A load on the motor I know it is difficult to gauge
The tension but firm with minor movement should do

Hi take a look at the photo ''

Thanks Chas, that is in a different position to another photo I have seen, but that required holes drilling. I will try your method.
Ray