When removing the rear engine mount, ALWAYS make sure the other 3 are fully operational
Nearly had my engine in my lap when it dropped suddenly after I removed the bolt through the rear mount. Turns out the o/s mount, which actually bolts to the gearbox, wasn't attached at all! Just sitting there, happy as larry, not connected to anything
God knows there the bolts have gone, they were DEFFINITELY in there after I changed the clutch. No wonder I felt the need for some polyurethene engine mounts...
Stay safe kids