I am just in the middle of changing a 95 1.6 petrol, and it is similar, but to release the layshaft there is a recessed circlip down the emd of the shaft,which must be removed. Then screw in a M7 bolt or easy-out into the hole and pull back the shaft. To get the clutch assy. to drop out,however, I had to loosen the bellhousing bolts and gearbox mountingd to enable the box to be pulled back about 1 1/2 inches, then it dropped out with ease.
Martin Higdon, MKH Classic Cars., January 2010