) o.d.Metric sizes are given first, followed by inch sizes in brackets. The word ’limit’ indicates the maximum permissible wear or clearance
| Valve timing: | ||
| Timing must be checked with 1 mm (.040) rocker clearance. Restore to correct clearance after checking. | ||
| 356A 1600: | ||
| Inlet opens | 5 deg. BTDC | |
| Inlet closes | 43 deg. ABDC | |
| Exhaust opens | 43 deg. BBDC | |
| Exhaust closes | 5 deg. ATDC | |
| 356A 1600S: | ||
| Inlet opens | 15 deg. BTDC | |
| Inlet closes | 50 deg. ABDC | |
| Exhaust opens | 50 deg. BBDC | |
| Exhaust closes | 15 deg. ATDC | |
| 356B 1600: | ||
| Inlet opens | 7 deg. BTDC | |
| Inlet closes | 45 deg. ABDC | |
| Exhaust opens | 44 deg. BBDC | |
| Exhaust closes | 6 deg. ATDC | |
| 356B 1600S, 1600S.90 and 356C 1600SC: | ||
| Inlet opens | 17 deg. BTDC | |
| Inlet closes | 53 deg. ABDC | |
| Exhaust opens | 50 deg. BBDC | |
| Exhaust closes | 14 deg. ATDC | |
| 356C 1600C: | ||
| Inlet opens | 10 deg. BTDC | |
| Inlet closes | 44 deg. ABDC | |
| Exhaust opens | 42 deg. BBDC | |
| Exhaust closes | 6 deg. ATDC | |
| Sparking plugs: | |
| Type: | |
| 356A and B 1600, 1600S and 1600S.90, 356C | Bosch W225.T1, Champion L85 (or equivalent in other makes) |
| 356SC | Bosch W225.T7, Champion L85 (or equivalent in other makes) |
| Gap: | |
| Bosch W225.T1 and Champion L85 | .50 to .60 (.020 to .024) |
| Bosch W225.T7 | .60 to .70 (.024 to .028) |
| Distributor: | |
| Type: | |
| 356A | VJ4.BR9 |
| 356B, C and SC, 1600S.90 | VJR4. BR18 |
| Contact points gap | .40 (.016) |
| Firing order | 1–4–3–2 |
| Ignition coil | Bosch TK6.A3 |
| Ignition timing: | |
| 1600S.90 and 356SC | 3 deg. BTDC or 3.6 mm (.14) on crankshaft pulley rim |
| All other models | 5 deg. BTDC or 6 mm (.25) on crankshaft pulley rim |
| Clutch type: | |
| All models except 356C and SC, and later 1600S.90 | A.10 Haeussermann, diaphragm spring |
| 356C and SC, 1600S.90 from engine No. 804.001 | A.12 Haeussermann, diaphragm spring |
| Clutch linings | |
| A.10 | 180 (7) o.d. |
| A.12 | 200 (7⅞) o.d. |
| Thickness (uncompressed): | |
| A.10 | 9.10 to 9.50 (.358 to .374) |
| A.12 | 9.7 to 10.1 (.382 to .398) |
| Clutch spring: | |
| For 356B 1600 | Stamped 616 |
| For 356B 1600S | Stamped 692 |
| 1600S.90 before engine No. 804.001 | Stamped 692 |
| 1600S.90 after engine No. 804.001 | Stamped 692/3A |
| Clutch plate runout | Maximum .50 (.020) |
| Clutch pedal free play | 20 to 25 (.75 to 1.0) |
| Type, all models | All synchromesh, all-indirect, integral with final drive in one casing. Four forward speeds and one reverse |
| Transmission variations: | |
| Early 356A, type 644 | Early synchromesh, twin mountings |
| Later 356A, type 716 | Improved synchromesh, twin mountings |
| Early 356B, type 741 (version 1) | Single mountings |
| Later 356B, type 741 (version 2) | Twin mountings |
| Latest 356B and 356C, type 741A | Twin mountings |
| Gear ratios: | |
| Types 644 and 716: | |
| 1st | 11:34 |
| 2nd | 17:30 |
| 3rd | 23:26 |
| 4th | 27:22 |
| Reverse | 3.56:1 |
| Type 741 | As above except for 1600S.90, 356SC |
| Type 741 (1600S.90, 356SC) | |
| 1st | 11:34 |
| 2nd | 17:30 |
| 3rd | 23:26 |
| 4th | 27:23 |
| Reverse | 3.56:1 |
| Final drive ratio: | |
| All models | 4.428:1 |
| Mainshaft: | |
| Clearance in pilot bush | .082 to .168 (.003 to .0066), limit .20 (.008) |
| Runout of pilot spigot | Maximum .10 (.004) |
| Runout between bearings | Maximum .03 (.0012), limit .04 (.0015) |
| Selector rods: | |
| Clearance in bores | .095 to .156 (.004 to .006), limit .40 (.016) |
| End play in transmission cover | .095 to .140 (.004 to .0055), limit .30 (.012) |
| Reverse idler: | |
| Clearance on shaft | .032 to .068 (.001 to .0027), limit .25 (.010) |
| Gears: | |
| Running fit | Free without play. Install oversize rollers or needle bearings available in standard +.004 (+ .00014) |
| Backlash | .06 to .20 (.0024 to .008), limit .30 (.012) |
| Side play on pinion shaft | .20 to .30 (.008 to .012), limit .40 (.016) |
| Rear axle shaft: | |
| Runout at outer bearing | .00 to .02 (.00 to .0008), limit .03 (.0012) |
| Clearance between fulcrum plates | .05 to .15 (.002 to .006), limit .25 (.010) |
| Clearance on large diameter | .03 to .10 (.0012 to .004), limit .15 (.006) |
| Type, all models | ZF single-peg and worm, divided tie-rods and hydraulic damper |
| Steering wheel: | |
| Turns (lock to lock) | 2.26 |
| Free play (central position) | Maximum 10 (.40) at rim |
| Wheel alignment: | |
| Toe-in (car unladen) | 2 ± 1 (.08 ± .04), steering central |
| Camber | 40’ ± 30’ |
| Caster | 5 deg. ± 30’ |
| Kingpin inclination | 4 deg. 30’ |
| Difference angle (inner wheel set at 20 deg. on curve) | 3 deg. 10’ (must be same on opposite lock of 20 deg.) |
| Rocker shaft: | |
| End float | .06 (.0024) |
| Clearance in bushes | .017 to .05 (.0007 to .002), limit .06 (.0024) |
| Worm: | |
| Running fit | Free turning without play |
| Type | Independent torsion bar springing, two trailing arms each side, telescopic hydraulic dampers |
| Torsion bars: | |
| Number of leaves | 8 |
| Angular position | 40 deg. (see Section 8:7) |
| Suspension arms: | |
| Maximum twist | .20 (.008) |
| Clearance in bush | .17 to .20 (.007 to .008). Go for upper limit as plastic bush tends to swell |
| Link pins: | |
| Diameter | 17.94 to 17.913 (.7068 to .7056), limit 17.8 (.703) |
| Clearance in bush | .042 to .087 (.0017 to .0034) |
| Kingpin: | |
| Clearance in bushes | .016 to .045 (.0007 to .0018) |
| Front axle assembly: | |
| Deviation from parallel | Maximum .80 (.031) |
| Type (footbrake): | |
| 356A and B, 1600S.90 | Drum, hydraulic |
| 356C and SC | Disc, hydraulic |
| Type (handbrake): | |
| All models | Mechanical on rear only |
| Brake drums: | |
| Inside diameter (standard) | 280.0±.10 (11.03±.004), front and rear |
| Inside diameter (oversize) | 281.0±.10 (11.07±.004), front and rear (fit oversize shoes) |
| Maximum runout, lateral, vertical (also taper) | 10 (.004) |
| Linings (drum brakes): | |
| Thickness (standard) | 7.0 (.276) |
| Thickness (oversize) | 7.5 (.295) |
| Brake and master cylinder bores | 19.05 (.75) |
| Brake discs: | |
| Diameter (front) | 274.5 (10.8) |
| Diameter (rear) | 285 (11.22) |
| Thickness (front) | 10.3 to 10.5 (.406 to .414) |
| Thickness (rear) | 9.8 to 10.0 (.386 to .394) |
| Tolerance on thickness | .03 (.001) |
| Maximum lateral runout | .20 (.008) |
| Disc brake pads: | |
| Thickness (new) | 15.0 (.59), with carrier |
| Thickness (minimum) | 2 (.08), approx. |
| Disc brake cylinders: | |
| Diameter (front) | 48 (1.89) |
| Diameter (rear) | 35 (1.38) |
| Master cylinder bore | 19.05 (.75) |
| Handbrake (disc): | |
| Drum diameter | 180 (7.1) |
| Lining width | 30 (1.18) |
| System | Negative earth |
| Battery | 6V 84 amp/hr (12V optional) |
| Generator: | |
| 356A | LJ/GE160/6/2500L2 |
| 356B, C, SC and 1600S.90 | LJ/GEG200/6/2600L |
| 12V optional | LJ/GEG200/12/2700L5 |
| Test load (watts): | |
| 356A | 160 |
| 356B, C, SC and 1600S.90 | 200 (also 12V) |
| Rev/min at rated voltage (no load): | |
| 356A | 1450 |
| 356B, C, SC and 1600S.90 | 1750 |
| 12V system | 1850 |
| Rev/min (performance test): | |
| 356A | 2450 (cold), 2600 (warm) |
| 356B, C, SC and 1600S.90 | 2500 (cold), 2700 (warm) |
| 12V system | 2550 (cold), 2700 (warm) |
| Field coil resistance: | |
| 356A | 1.2+.12 ohm |
| 356B, C, SC and 1600S.90 | 1.0+10 ohm |
| 12V system | 4.8+.50 ohm |
| Brush spring tension | 450 to 600g (16 to 21 oz) |
| Regulator: | |
| 356A | RS/UA160/6/24 |
| 356B, C, SC and 1600S.90 | RS/UA200/6/23 |
| 12V system | RS/UA200/12/23 |
| Cut-out closes (6V) | 6.3 to 6.7V |
| Cut-out closes (12V) | 12.7 to 13.4V |
| Cut-out opens (356A and 12V) | 4.5 to 8.5 amp |
| Cut-out opens (356B, C, SC and 1600S.90) | 4 to 9 amp |
| Current regulator cuts in: | |
| 356A | 40 to 44 amp (cold), 37 to 51 amp (warm) |
| 356B, C, SC and 1600S.90 | 50 to 54 amp (cold), 47 to 51 amp (warm) |
| 12V system | 24.5 to 28.5 amp (cold), 22 to 26 amp (warm) |
| Starter: | |
| 356A | EED 0.5/6 L18 |
| 356B, C, SC and 1600S.90 | EED 0.5/6 L35 |
| 12V system | EED 0.8/12 L36 |
| No-load test: | |
| 356A | 60 to 80 amp at 5.5V and 5500 to 7500 rev/min |
| 356B, C, SC and 1600S.90 | 60 to 80 at 5.5V and 5300 to 7300 rev/min |
| 12V system | 30 to 50 amp at 11.5V and 5000 to 7500 rev/min |
| Load test: | |
| 356A | 250 amp at 4.5V and 1000 to 1300 rev/min |
| 356B, C, SC and 1600S.90 | 260 amp at 4.5V and 1000 to 1300 rev/min |
| 12V system | 180 amp at 10V and 1100 to 1400 rev/min |
| Armature end float | .10 to .30 (.004 to .012) |
| Brush spring tension | 800 to 900g (28 to 32 oz) |
| Fuel tank (all models) | 52 litres (11½ Imp. gals, approx.) |
| Engine (with filter) | 4 litres (7 Imp. pints) |
| Transmission | 3.5 litres (6.15 Imp. pints) |
| Steering gearbox | .25 litres (.44 Imp. pints) |
| Brake fluid reservoir | .25 litres (.44 Imp. pints) |
Settings in lb ft are in brackets
| Engine: | |
| Crankcase through-bolt nuts | 4 mkg (29) |
| Crankcase bolts (8 mm) | 25 mkg (18) |
| Timing case nuts | 2 mkg (14½) |
| Connecting rod nuts | 4.5 mkg (32½) |
| Cylinder head nuts | 3 mkg (22) |
| Rocker bracket bolts | 3.5 to 4 mkg (25½ to 29) |
| Seven rocker bracket nuts (later type) | 2.5 mkg (18) |
| Camshaft gear nuts | 2.5 mkg (18) |
| Fan impeller nut | 10 mkg (72.5) |
| Flywheel gland nut (except 356C and 1600S.90) | 35 to 37.5 mkg (254 to 272) |
| Flywheel gland nut (356C and 1600S.90) | 45 to 50 mkg (326 to 363) |
| Transmission: | |
| Mainshaft castle nut | 2.5 mkg (18) |
| Pinion shaft castle nut | 10 mkg (72½) |
| Bolts for crownwheel (ring gear) | 6 mkg (43½) |
| Bolts for bearing retaining plate | 2 mkg (14½) |
| Selector fork bolts | 2.5 mkg (18) |
| Housing bolts (8 mm) | 2 mkg (14½) |
| Rear axle nuts | 55 (400) |
| Steering: | |
| Gearbox to axle tube nuts | 3 mkg (22) |
| Drop arm nut | 15 mkg (112) |
| Brakes: | |
| Backplate cover bolts (rear drum): | |
| 8 mm | 4 to 4.5 mkg (29 to 32½) |
| 10 mm | 5.5 to 6 mkg (40 to 43½) |
| Backplate bolts (rear disc) | 2.5 mkg (18) |
| Caliper bolts (disc): | |
| Front | 35 mkg (24½) |
| Rear | 1.7 mkg (13) |
| Caliper mounting bolts: | |
| Front | 7.5 mkg (56½) |
| Rear | 6.2 mkg (47) |
| Disc mounting bolts | 2.2 to 2.4 mkg (16 to 17½) |
| Rear suspension: | |
| Axle tube to radius arm | 9 to 10 mkg (65 to 72) |
Key to Fig 13:1
1 Headlight
2 Turn signal, parking light
3 Fog light (optional)
4 Horn (high pitch)
4a Horn (low pitch)
5 Battery
6 Sending unit (fuel gauge)
7 Horn relay
7b Relay for light signal
8 Fusebox
9 Windshield wiper motor
10 Interior light*
11 Door contact switch*
12 Dash socket
13 Stoplight switch
14 Reversing light switch
15 Cigarette lighter*
16 Turn signal switch
17 Flasher unit
18 Light signal button*
19 Horn ring
20 Light switch
21 Dimmer switch
22 Ignition-starter switch
23 Speedometer
24 Tachometer
25 Oil temperature and fuel gauge
26 Oil pressure earthing switch
27 Oil temperature sending unit
28 Ignition coil
29 Voltage regulator
30 Starter solenoid
31 Spark plugs
32 Distributor
33 Generator
34 Starter motor
35 Turn signal, stoplight
36 Tail light
37 Number plate light
*Not on Speedster
Key to Fig 13:2
1 Headlamp
2 Turn signal
3 Fog lamp (optional)
4 Horn (high)
4a Horn (low)
5 Battery
6 Fuel gauge sender
7 Horn relay
8 Signal lamp relay
8a Fog lamp relay
9 Fusebox
10 Windscreen wiper motor
11 Interior light*
12 Door switch*
13 Socket on dash
14 Stoplight switch
15 Cigarette lighter
16 Turn, dim and light signal switch
17 Flasher
18 Horn button
19 Ignition-starter switch
20 Light switch
20a Fog lamp switch
21 Oil temperature and fuel gauge
22 Tachometer
23 Speedometer
24 Clock (optional)
25 Oil pressure earthing switch
26 Oil temperature sender
27 Ignition coil
28 Reversing light switch
29 Voltage regulator
30 Generator
31 Starter
32 Distributor
33 Sparking plug
34 Turn, braking and tail lights
35 Number plate light
36 Reversing light
*Not on Roadster
FIG 13:3 Wiring diagram for Porsche 356B cars from Nos. 117.601 (coupé). 155.601 (cabriolet) and 201.601 (hardtop)
Key to Fig 13:3
1 Starter
2 Generator
3 Regulator
4 Distributor
6 Ignition coil
8 Spark plug
9 Spark plug socket
13 Battery
15 Headlight
15a Sealed beam
16 Signal light
18 Brake tail light
19 Number plate light
21 Reversing light
22 Interior light
23 Fog lights
27 Oil pressure warning light
28 Generator warning light
29 Turn signal indicator light
30 High beam indicator light
31 Parking light indicator light
37 Ignition-starter switch
39 Headlight switch
41 Brake light switch
42 Reversing light switch
43 Oil pressure switch
44 Signal dimmer switch
45 Door contact switches
46 Fog light switch
48 Horn button
50 Windshield wiper switch
52 Horn relay
53 Light signal relay
55 Flasher
56 Fog light relay
60 Accessory socket
61 Fusebox
63 Forward wire loom
64 Battery earthing strap
65 Instrument wire loom
66 Rear wire loom
67 Ignition cables
69 Plug connector
76 Two-tone horn
80 Windshield wiper
82 Cigarette lighter
83 Tachometer
89 Speedometer
90 Combination instrument
92 Electric clock
93 Fuel gauge sender
94 Oil thermometer sender
Key to Fig 13:4
1 Starter
2 Generator
3 Regulator
4 Distributor
6 Ignition coil
8 Sparkplug
9 Sparkplug socket
13 Battery
15 Headlight with parking light
15a Sealed beam
16 Signal light
18 Brake tail light
19 Number plate light
21 Reversing light
22 Interior light
23 Fog lights
24 Handbrake warning light
27 Oil pressure warning light
28 Generator warning light
29 Turn signal indicator light
30 High beam indicator light
31 Parking light indicator light
37 Ignition-starter switch
39 Headlight switch
40 Handbrake indicator switch
41 Brake light switch
42 Reversing light switch
43 Oil pressure switch
44 Signal dimmer switch
45 Door contact switches
46 Fog light switch
48 Horn button
50 Windshield wiper switch
52 Horn relay
53 Light signal relay
55 Turn signal flasher
56 Fog light relay
61 Fusebox
63 Forward wire loom
64 Battery earthing strap
65 Instrument wire loom
66 Rear wire loom
67 Ignition cables
69 Plug connector
76 Twin horns
80 Windshield wiper
82 Cigar lighter
88 Tachometer
89 Speedometer
90 Combination instrument
92 Electric clock
93 Fuel gauge sender
94 Oil thermometer sender
Key to Fuses:
1 Brake and turn signals, reversing light
2 Cigarette lighter, socket, wipers
3 Auxiliary heater, sunroof
4 Wiper, interior light
5 Fog lamp R
6 Fog lamp L
7 Tail and number plate R
8 Tail and number plate L
9 Low beam R
10 Low beam L
11 High beam R
12 High beam L and indicator
