25D4   45D4

25D4 distributor: 'A' spade terminal for the points connection on the side; 'B' long, almost flat clips; and 'C' vacuum advance capsule. This early capsule has a screwed connection for a copper vacuum pipe, later versions have a push-on fitting for plastic tube:

The vacuum advance capsule passes through a moulding on the side of the distributor body and has a knurled adjustment wheel 'D' at the far end:

'Side-entry' cap, which positions the HT leads well clear of the RHD steering column and UJ, unlike top-entry caps. Cut ends of the leads push into the holes:

... and are secured with screws:

'Top-entry' cap, these silicone-cored leads have crimped metal terminals that push into connector sockets inside the cap:

Nothing inside the cap except the five connections, the centre one being a spring-loaded 'carbon' or graphite rod:

Under the cap: 'A' the points/coil terminal with a cloth insulated wire to the points terminal stud; 'B' points; 'C' condenser with wire to the points terminal stud; 'D' there should be a cloth-insulated earth wire from a riveted terminal on the points plate to a fixing screw, 'E' the vacuum advance actuator on a pin on the points plate:

45D4 distributor: 'A' the points wire passing out through a hole on the side of the body terminated with a male spade; 'B' short curved clips; and the vacuum capsule with a push-fit connection. 'Top-entry' cap, there do seem to be side entry caps but they are screw-down not clip on used on the original Mini:

'D' the vacuum capsule goes into the body and is screwed to the outside of it;

Cap removed: 'A' points/coil wire entering through a hole in the distributor body; 'B' points; 'C' condenser, the condenser and the points wire have a common connection that slides under a clip on the points spring; 'D' earth wire from condenser screw to points-plate screw:

'Top-entry' cap, with connector sockets for push-in leads with connector plugs:

Again nothing inside except the five connections: