Burner motor to Oil Pump Vibration

[Northers]

Hi
I've fitter new motor to Inter 2011C burner which drives Danfoss BFP 11L3 oil pump.
motor bearings are good fan rotates freely and without wobble. There's a vibration noise from the pump coupling area which I just can't seem to solve.
If I slacken the pump mounts and move it slightly noise changes but I can't seem to get it quiet.
Is there a trick to getting the pump aligned with the motor? Is the pump the problem?
Any advice will be much appreciated.
Thanks
Andy

 

[SimonG]

Do you have oil gauge and analyser?

 

[Best]

Not surprised the motor bearing are good if the motor is brand new.
Was the new motor an exact replacement?
I think I know what might be wrong, but you really need to get it done by someone qualified.
Analysers show up badly burning boilers.