In message . com,
Magician writes
Geoff wrote;

The grommets which SF & TS have on offer just aren't
tall enough (20mm)

Use several?

It won't work

Without the slot, the motor mounts would be free to move to the extent
that the collets inside will let them - The motor could move off centre
and rattle

.... not a proper job

to see the application look at

http://www.johnsonandstarleyltd.co.u...OS02064SP&ACTI
ON=SEARCH&searchby=Part%20Number

--
geoff