Type Z

 

Listing of Ricardo drawings held.

 

 

Drawing Description Sheet
-0- Chassis front plan, LHD 1 Chassis rear plan, LHD 2
-0- Chassis Left side elevation, front, LHD 3
-0- Chassis left side elevation, rear, LHD 4

Z12/A1 Chassis General arrangement, LHD 5
Z12/A2 Rear axle general arrangement sections 6
Z12/A3 Front axle (Unbraked) general arrangement sections 7
Z12/A4A Body style outline 5-seat tourer 8

Z12/A4B Body style outline Sports 4-seater 8
Z12/A4C Body style outline Coupé de Ville 8
Z12/A4D Enclosed drive limousine 8
Z12/A5 Steering box & column 9

Z12/A6 Engine, transverse cross-sections 10
Z12/A7 Engine & (early) gearbox longitudinal section 11
Z12/A8 Gearbox & handbrake transverse cross-section 12
Z12/A9 Hand & foot controls for carburettor 13

Z12/A10 Clutch & brake pedal shaft: sections 14
Z12/A11(?) Crankshaft (45Ø crank pins) 41
Z12/A13 Machining alterations for half-balancing crankshaft 15
Z12/E19 Crankshaft half-balancing weights 15

Z12/E20 Stud, half-balancing weights 15
Z12/E21 Nut, half-balancing weights 15
Z12/A15 Gearbox revision general arrangement section (Z145 & 433) 16
Z-7/A17 Engine bearer & chassis detail 17

Z12/B1.1 Crankcase, machining 18
Z12/B1.2 Crankcase, machining 19
Z12/B1.3 Crankcase, machining 20
Z12/B1.4 Crankcase, machining 21

Z12/B2 Sump (cancelled) 22
Z12/B2A Sump revision (for Z145 & 433) 23
Z12/B3 Timing case cover 24
Z12/B4 Valve cover 25

Z12/B5 Carrier, intermediate timing gear cancelled 25
Z12/B5A Carrier, intermediate timing gear revision 26
Z12/B6 Intermediate timing gear cancelled 25
Z12/B6A Intermediate timing gear revision 26

Z12/B7 Generator driving gear 25
Z12/B8 Oil filler cap 25
Z12/B9 Cam follower 25
Z12/B10 Guide for cam follower 25

Z12/B11 Tappet adjusting screw 25
Z12/B12 Drain plug, engine, gearbox, bell-housing 25
Z12/B13 Bushing, camshaft centre bearing 25
Z12/B14 Bushing, engine front support 25

Z12/B15 Spindle, intermediate timing gear cancelled 25
Z12/B15A Spindle, intermediate timing gear revision 26
Z12/B16 Plug, oilway 25
Z12/B17 Plug, camshaft centre bushing 25

Z12/B18 Sump gauze filter 27
Z12/B19 Oil suction tube 27
Z12/B20 Gauze breather, oil filler cap 27
Z12/B21 Dipstick cancelled 27

Z12/B21A Dipstick revision 27
Z12/B22 Head for dipstick cancelled 27
Z12/B22A Head for dipstick revision 27
Z12/B23 Valve cover screw 27

Z12/B24 Dowel, intermediate timing gear carrier 27
Z12/B25 Bolt, locking centre main crankshaft bearing housing 27
Z12/B29 Bolt, engine rear mounts 28
Z12/B30 Washer for Z12/B29 28

Z12/B31 Upper spring cup, engine rear mounts 28
Z12/B32 Seat for upper & lower springs, engine rear mounts 28
Z12/B33 Seat for lower spring, engine rear mounts 28
Z12/B34 Spring, upper, rear engine mounts 28

Z12/B35 Spring, lower, rear engine mounts 28
Z12/B36 Engine rear mounts, general arrangement 28
Z12/B37 Sump with internal cleanable filter: proposal only 29
Z12/B38 Proposed oil filter body 30

Z12/B39 Proposed oil filter cap 30
Z12/B40 Proposed oil filter cover 30
Z12/B41 Proposed oil filter through-bolt 30
Z12/B42 Proposed oil filter general arrangement 30

Z12/C1(?) Cylinder block 38
Z12/C2 Cylinder head (Z145, 433) 31
Z12/C2A Cylinder head proposal 1 (combustion chamber shape) 32
-0- Cylinder head, proposal 2 (combustion chamber shape) 33

Z12/C3 Water outlet header 34
Z12/C5 Valve (original: spring retained by key) 35
Z12/C6 Valve spring 35 Z12/C7 Valve spring seat upper 35

Z12/C8 Valve spring cap 35
Z12/C9 Cross-key for valve Z12/C5 35
Z12/C10 Gasket, cylinder head 35
Z12/C11 Gasket, water inlet & fan mounting 35

Z12/C12 Gasket, water outlet header 34
Z12/C13 Acorn nut for water outlet header 34
Z12/D1 Connecting rod (45Ø crank pins) 36 Z12/D1A Connecting rod revision (50Ø crank pins) 37

Z12/D2 Cap, connecting rod (45Ø crank pins) 36
Z12/D2A Cap, connecting rod (50Ø crank pins) 37
Z12/D3 Bearing shell (45Ø crank pins) 36
Z12/D3A Bearing shell (50Ø crank pins) 37

Z12/D4 Bushing for gudgeon pin, connecting rod 36
Z12/D5 Cap bolt, connecting rod 36
Z12/D6 Nut for Z12/D5 36 Z12/D7 Tab washer for Z12/D6 36

Z12/D8 Dowel, locating big-end shells in connecting rod 36
Z12/E2 Centre main bearing support upper cancelled 39
Z12/E2A Centre main bearing support upper revision 40
Z12/E3 Centre main bearing support lower cancelled 39

Z12/E3A Centre main bearing support lower revision 40
Z12/E3B Centre main bearing support lower 2nd revision 40
Z12/E4 Rear main bearing housing upper 39 Z12/E5 Rear main bearing support lower 39

Z12/E6 Front main bearing 41
Z12/E7 Rear & centre main bearing shells 41
Z12/E8 Fan driving pulley on crankshaft 41
Z12/E9 Crankshaft pinion gear 41

Z12/E10 Flywheel cancelled 42
Z12/E10A Flywheel revision 40
Z12/E11 Starter ring gear 42
Z12/E12 Key for crankshaft pinion gear 41

Z12/E13 Washer behind Z12/E9 41
Z12/E14 Dowel for main bearing shells 41
Z12/E15 Nut for crankshaft nose 42
Z12/E16 Tab washer for Z12/E15 42

Z12/E17 Dowel for centre main bearing support lower 42
Z12/F1 Camshaft 43
Z12/F2 Camshaft timing gear 43
Z12/F3 Nut for camshaft nose (Left hand thread) 43

Z12/F4 Tab washer for Z12/F3 43
Z12/F5A Front bearing for camshaft 43
Z12/F6 Rear bearing for camshaft 43
Z12/F7 Key, camshaft timing gear 43

Z12/G1 Body, oil pump 44
Z12/G2 Piston, oil pump 44
Z12/G3 Oscillating drum for oil pump cancelled, but no G3A found 44
Z12/G4 Priming plug, oil pump 44

Z12/G5 Oil inlet for oil pump 44
Z12/G6 End connectors, oil suction pipe 44
Z12/G7 Oil suction pipe (early) 44
Z12/G8 Plug for suction 44

Z12/G9 Body, oil pressure relief valve 44
Z12/G10 Plunger, oil pressure relief valve 44
Z12/G11 Spring, oil pressure relief valve 44
Z12/G12 Gasket, oil pressure relief valve 44

Z12/H1 Manifold, inlet & exhaust 45
Z12/H2 Inlet manifold riser 45
Z12/H3 Gasket type 1, manifold 45
Z12/H4 Gasket type 2, manifold 45

Z12/J1 Water inlet & fan support 46
Z12/J2 Fan 46
Z12/J3 Fan driven pulley 46
Z12/J4 Fan spindle 46

Z12/J5 Bearing spacer, fan spindle 46
Z12/K1 Cradle for magneto 47
Z12/K2 Magneto drive capsule 47
Z12/K3 Cover, magneto drive capsule 47

Z12/K4 Driven spider, magneto drive 47
Z12/K4A Conversion to Simms vernier coupling proposal 47
Z12/K5 Drive shaft & spider, magneto drive 47
Z12/K6 Distance piece, magneto drive shaft bearings 47

Z12/K7 Drive gear, magneto 47
Z12/K8 Tab washer, magneto drive gear 47
Z12/K9 Flexible coupling disc 47
Z12/K10 Dowel for magneto drive capsule 47

Z12/M1 Clutch cover 48
Z12/M2 Clutch pressure plate cancelled 49 Z12/M2A Clutch pressure plate revision 50
Z12/M3 Clutch withdrawal sliding sleeve 48

Z12/M4 Cup, clutch withdrawal thrust bearing 51
Z12/M5 Disc for sleeve M3 48
Z12/M6 Clutch pressure lever 48
Z12/M7 Clutch driven plate 49

Z12/M8 Hub, clutch plate 48
Z12/M9 Lining, clutch driven plate 49
Z12/M10 Clutch plate spring 49
Z12/M11 Guide pin for clutch pressure plate 48

Z12/M12 Clutch withdrawal finger 51
Z12/M13 Shaft, clutch & brake pedals LHD 51
Z12/M14 Shaft, clutch & brake pedals RHD 51
Z12/M15 Bushing, long for pedal shaft LHD 51

Z12/M16 Bushing, shoulder for pedal shaft L&RHD 51
Z12/M17 Split collar, pedal shaft L&RHD 51
Z12/M18 Clutch pedal arm LHD cancelled 53
Z12/M18A Clutch pedal arm LHD revision 54

Z12/M19 Brake pedal arm LHD 53
Z12/M20 Bushing, bake pedal RHD 51
Z12/M21 Brake pedal arm RHD cancelled 52
Z12/M21A Brake pedal arm RHD revision 54

Z12/M22 Buffer spring, clutch pedal 51
Z12/M23 Clutch pedal arm RHD cancelled 53
Z12/M23A Clutch pedal arm revision 54
Z12/M24 Rod, clutch & brake pedal pads cancelled 53

Z12/M24A Rod, clutch & brake pedal pads revision 54
Z12/M25 Clutch pedal clamp bolt cancelled 53
Z12/M25A Clutch pedal clamp bolt revision 54
Z12/M26 Brake pedal pad cancelled 53

Z12/M26A Brake pedal pad revision 54
Z12/M27 Clutch pedal pad cancelled 53
Z12/M27A Clutch pedal pad revision 54
Z12/M28 Key, clutch pedal shaft 51

Z12/M29 Pin for M4 51