The overdrive units fitted to the BN7 and BT7 cars are basically similar to that described in Section 6. The following changes have, however, been made:
Joint-overdrive unit. Stud—o~~erdrivuenit. Washerfor stud (spring) Nut for stud. No. 28. 29. 30. 31. 32. 33. Description Joint-bracket to case. Nut-bracket to casing. Washerfor nut (spring). Screw-bracket to casing. Washerfor screw. Washerfor screw (spring). Solenoid. Screw-solenoid to bracket. Washerfor screw (spring). Plate-solenoid bracket cover. Seal, oil-valve operating shaft. Distance collar. Lever-solenoid. Screw-lever to spindle. Washerfor screw (spring). Nut for screw. Piston assembly-accurnulatov. Aiizg-pis ton. Eousing assenzhly-accumulator. No. Description Spring for plunger. Plugfor valve-screwed. Washerfor plug. Cam-oil pump. Plunger assenzbly-oil Spring for plunger. Body-oil pump. Plug for body-screwed. Screw-body tofront casing. WasherJCorscrew (spring). Ball valve. Plzmger, ball. Spring for plunger. Washerfor valve plug (copper). Plug-valve. Strainer-oil puinp. Distance tubefor strainer. Bolt for strainer. Washerfor bolt. Washerfor bolt (spring). Plug-oil drain. Washerfor plug. Washer, steel. 1;YasIzer-phosphor bronze. Studfor solenoidbracket. Jointfor coverplate. Ring-piston. Plate-adaptor. Stud-adaptor Joint-adaptor Nut-plate stud to casing. Casing-front . Plug. Shaft-valve operating. Lever for shaft. Pin-lever to shaft. pump. Washerfor stud (spring) to casing. to casing. Cam-valve Pin for cam. Sealfor shaft. Stud for solenoid bracket. Stud for plate-long. Stud for plate-short. Stud-front to rear casing. Peg-oil pzlmp plunger guide. Nut-front casing to adaptor plate. WasJzerfor nut (spring). Breather. Bracketsolenoid. Stop (rubber). operating. Ring, rubber. Spring–accumulator Tubefor spring. Piston-assembly-operating. Ring, piston. Valve,operating. Ballfor valve. Hunger, ball. pressure.