Home / Typ 1 Motor Specification
- - Crankcase bores
- - Crankshaft
- - Connecting rods
- - Camshaft
- - Lubrication system
- - Flywheel
- - Pistons and Cylinders
- - Cylinder head and valves
- - Cooling
- - Clutch
- - Tightening Torques
Volkswagen Type 1 Engines 1600
Tolerances, Wear Limits, and Settings (single-carburetor engines)
Designation
New part mm (In.)
Wear limit mm (In.)
Crankcase bores
| 1 - Bores for air bearings | --- | --- | --- |
| - Bearings 1, 2 and 3 | Diameter | 65.00 - 65.02 (2.5590 - 2.5598) | 65.03 (2.5602) |
| - Bearing 4 | Diameter | 50.00 - 50.03 (1.9685 - 1.9696) | 50.04 (1.9700) |
| 2 - Bore for oil seal/flywheel end | Diameter | 90.00 - 90.05 (3.5433 - 3.5452) | --- |
| 3 - Bores for camshaft bearings | Diameter | 27.50 - 27.52 (1.0826 - 1.0834) | --- |
| 4 - Bore for oil pump housing | Diameter | 70.00 - 70.03 (2.7559 - 2.7570) | --- |
| 5 - Bores for cam followers | Diameter | 19.00 - 19.02 (.7480 - .7488) | 19.05 (.7500) |
Crankshaft
| 1 - Journal dimensions | --- | --- | --- |
| a - Main journals 1, 2 and 3 | Diameter | 54.97 - 54.99 (2.1641 - 2.1649) | --- |
| b - Main journal 4 | Diameter | 39.98 - 40.00 (1.5740 - 1.5748) | --- |
| c - Connecting rod journals | Diameter | 54.98 - 55.00 (2.1645 - 2.1653) | --- |
| d - Three undersizes of 0.25 mm (.010 in.) each | |||
| 2 - Crankshaft at No. 2 and No. 4 main journals | --- | --- | --- |
| (No. 1 and No. 3 journals on V-blcks) | Runout | --- | 0.02 (.0008) |
| 3 - Crankshaft | Imbalance | Max. 12 cmg | --- |
| 4 - Main baring journal | Out-of-round | --- | 0.03 (.0012) |
| 5 - Connecting rod journal | Out-of-round | --- | 0.03 (.0012) |
| 6 - Crankshaft/main Journals (taking housing preload into aocount): | --- | --- | --- |
| a - Bearings 1 and 3 | Radial play | 0.04 - 0.10 (.0016 - .004) | 0.18 (.007) |
| b - Steel bearlng 2 | Radial play | 0.03 - 0.09 (.0012 - .0035) | 0.17 (.0067) |
| c - Bearing 4 | Radial play | 0.05 - 0.10 (.0019 - .004) | 0.19 (.0074) |
| 7 - Crankshaft/main journal 1 | End play | 0.07 - 0.13 (.0027 - .005) | 0.15 (.006) |
| 8 - Connecting rod journal/connecting rod | Radial play | 0.02 - 0.07 (.0008 - .0027) | 0.15 (.006) |
| End play | 0.10 - 0.40 (.004 - .016) | 0.70 (.027) | |
Connecting rods
| 1 - Weight difference between connecting rods in one engine | --- | Max. 5 g | max. 10 g (during repair) |
| Weight of replacement connecting rods | --- | --- | --- |
| – Weight (white) brown/white | --- | 580 - 588 g | --- |
| + Weight (black) gray/black | --- | 592 - 600 g | --- |
| 2 - Piston pin | Diameter | 21.996 - 22.00 (.8660 - .8661) | --- |
| 3 - Piston pin bush | Diameter | 22.009 - 22.00 (.8664 - .8667) | --- |
| 4 - Piston pin/bush | Radial play | 0.01 - 0.02 (.0004 - .0008) | 0.04 (.0016) |
Camshaft
| 1 - Bearings 1, 2, and 3 | Diameter | 24.99 - 25.00 (.9839 - .9843) | --- |
| 2 - Measured at center bearing (bearings 1 and 3 on V-Blocks) | Runout | 0.02 (.0008) | 0.04 (.0016) |
| 3 - Camshaft/camshaft bearings (taking housing preload in account) | Radial play | 0.02 - 0.05 (.0008 - .002) | 0.12 (.0047) |
| Thrust bearing | End play | 0.04 - 0.013 (.0016 - .005) | 0.16 (.0063) |
| 4 - Camshaft gear | Backlash | 0.00 - 0.05 (.000 - .002) | --- |
| 5 - Cam follower | Diameter | 18.96 - 18.98 (.7464 - .7472) | 18-93 (.7452) |
| 6 - Bore/cam follower | Radial play | 0.02 - 0.06 (.0008 - .0023) | 0.12 (.0047) |
| 7 - Push rod | Runout | Max. 0.30 (.012) | --- |
Lubrication system
| 1 - Oil pressure (for SAE 30 only) at an oil temperature of 70ºC (158ºF) and 2500 rpm. | Approx 42 psi (3 kg/cm2) | 28 psi (2 kg/cm2) | ||
| 2 - Spring for pressure relief valve through Juli 1969. | Length loaded: 43.20 mm (1 11/16 in.) | Load | 2.5 - 4.2 kg (5.5 - 9.2 lbs.) | --- |
| 3 - Spring for pressure relief valve from Aug. 1969 | Length loaded: 44.10 mm (1 ¾ in.) | Load | 5.6 - 7.3 kg (12 - 16.0 lbs.) | --- |
| 4 - Spring for oil pressure control valve from Aug. 1969 through Jul. 1970 | Length loaded: 20.20 mm (13/16 in.) | Load | 2.9 - 3.6 kg (6.3 - 7.9 lbs.) | --- |
| 5 - Spring for oil pressure control valve from Aug. 1970 | Length loaded: 20.20 mm (13/16 in.) | Load | 3.1 - 3.8 kg (6.3 - 8.4 lbs.) | --- |
| 6 - Oil Pressure switch open at | Pressure | 2.1 - 6.4 psi (0.15 - 0.45 kg/cm2) | --- | |
Flywheel
| 1 - Flywheel (measured at center of friction surface) | Lateral runuot | Imbalance | Max. 0.30 (.012) | 20 cmg | --- | --- |
| 2 - Shoulder for oil seal | Outside diameter | 69.9 - 70.1 (2.752 - 2.756) | --- | |||
| 3 - Drive plate, torque converter | Imbalance | Max. 5 cmg | --- | |||
Pistons and Cylinders
| Two oversizes of 0.5 mm (.020 in.) each | --- | --- | --- | |||
| 1 - Cylinders | Out-of-round | Max. 0.01 (.0004) | --- | |||
| 2 - Cylinder/piston | Clearence | 0.04 - 0.06 (.0016 - .0023) | 0.20 (.008) | |||
| 3 - a. Upper piston ring | Side clearence | 0.07 - 0.10 (.0027 - .0039) | 0.12 (.0047) | |||
| b. Lower piston ring | Side clearence | 0.05 - 0.07 (.0012 - .0027) | 0.10 (.004) | |||
| 4 - OiI scraper ring | Side clearence | 0.03 - 0.05 (.0012 - .0020) | 0.10 (.004) | |||
| 5 - a. Upper piston ring | Gap | 0.30 - 0.45 (.012 - .018) | 0.90 (.035) | |||
| b. Lower piston ring | Gap | 0.30 - 0.45 (.012 - .018) | 0.90 (.035) | |||
| 6 - a. Oil scraper piston ring | Gap | 0.25 - 0.40 (.010 - .016) | 0.95 (.037) | |||
| 7 - Piston weight | --- | --- | --- | |||
| - Weight (brown) | --- | --- | 398 - 410 g | 402 - 412 g | --- | --- |
| + Weight (gray) | --- | --- | 406 - 418 g | 410 - 420 g | --- | --- |
| 8 - Weight differrence between pistons in one engine | --- | Max. 5 g | Max. 10 g | |||
Cylinder head and valves
| 1 - Cylinder seating depth in cylinder head | --- | 13.45 - 13.55 (.5295 - .5334) | --- | |
| a. Rocker arm | Inside diameter | 18.00 - 18.02 (.7086 - .7094 | 18.04 (.7102) | |
| b. Rocker shaft | Diameter | 17.97 - 17.99 (.7074 - .7082) | 17.95 (.7067) | |
| 2 - Valve springs Length loaded 31.0 mm (1 7/32 in.) | Load | 53.2 - 61.2 kg (117 - 135 lb.) | (520 - 600 N) | --- |
| 3 - Valve seals | --- | --- | --- | |
| a. Intake | Width new | 1.30 - 1.60 (.051 - .063) | --- | |
| b. Exhaust | Width new | 1.70 - 2.00 (.067 - .0798) | --- | |
| c. Intake | Seat angle | 45° | --- | |
| d. Exhaust | Seat angle | 45° | --- | |
| e. Outer seat edge | Correction angle | 15° | --- | |
| f. Inner seat edge | Correction angle | 75° | --- | |
| 4 - Valve guides | --- | --- | --- | |
| a. Intake | Inside diameter | 8.00 - 8.02 (.3150 - .3157) | 8.06 (.3173) | |
| b. Exhaust | Inside diameter | 8.00 - 8.02 (.3150 - .3157) | 8.06 (.3173) | |
| 5 - Valve stem | --- | --- | --- | |
| a. Intake | Diameter | 7.94 - 7.95 (.3126 - .3129) | 7.90 (.3110) | |
| b. Exhaust | Diameter | 7.92 - 7.94 (.3118 - .3126) | 7.88 (.3102) | |
| Out-of-round | 0.01 (.0004) | --- | ||
| 6 - Valve head | --- | --- | --- | |
| Intake | Diameter | 35.6 (1.4) | --- | |
| Exhaust | Diameter | 32.1 (1.26) | --- | |
| 7 - Valve facing | --- | --- | --- | |
| Intake | Angle | 0.44° | --- | |
| Exhaust | Angle | 0.45° | --- | |
| 8 - 1972 through 1977 valve clearance (cold) | --- | --- | ||
| a. Intake (all engines) | Setting | 0.15 (.006) | --- | |
| b. Exhaust (1700 dual-carbuieior engines through chassis No. | 213 2210 553 and all fuel-injection engines) | Setting | 0.15 (.006) | --- |
| Exhaust (1800 engines, 1700 engines from Chassis No. 213 2210 554 and earlier 1700 | engines that have been modyfied by the installation of sodium-filled valves) | Setting | 0.20 (.008) | --- |
| 9 - 1978 valve clearance | Controlled automaticaly by | hydraulic valve lifters | --- | |
| 10 - Compression pressure | --- | 114 - 142 psi (8.0 - 10.0 Kg/cm2) | 100 psi (7 Kg/cm2) | |
| Pressure between cylinders | --- | Max. 28 psi (2 Kg/cm2) | (69 - 93 N/cm2) | --- |
Cooling
| 1 - Thermostat | Opennig temperature | 65 - 70°C (149 - 158°F) | --- |
| 2 - Fan/belt pullley | Imbalance | Max. 5 cmg | --- |
Clutch
| 1 - Total pressure | 1700 (210 mm) | 380 - 420 kg (837-925 lbs.) | --- |
| 2 - Complete clutch | Imbalance | Max. 15 cmg | --- |
| 3 - Pressure plate | Runout | --- | 0.10 (.004) |
| 4 - Clutch plate [measured at 195 mm (7.677 in.) dia.] | Lateral ronout | Max. 0.5 (.020) | --- |
| 5 - Play at clutch pedal | --- | 10 - 20 (3/8 - 3/4) | --- |
Specifications taken from VW Type 2 - © Bentley Official Service Manual - 1968 - 1979
Tightening Torques (single-carburetor 1600 engine)
| Location | Designation | Thread | Quality grade | N-Newton | mkg | ft. lb. |
| Connecting rods | connecting rod nut | M 9 x 1 | 8 G | 33 | 3.3 | 24 |
| Crankcase halves | nut | M 8 | 5 S | 20 | 2.0 | 14 |
| Crankcase halves | nut | M 12 x 1.5 | 35 S 20 K | 35 | 3.5 | 25 |
| Cylinder head | nut | M 10 | 35 S 20 KV | 32 | 3.2 | 23 |
| Rocker shaft to cylinder head | nut | M 8 | 8 G | 25 | 2.5 | 18 |
| Heat exchanges on cylinder head | self-locking nut | M 8 | — | 20 | 2.0 | 14 |
| Muffler clamps | bolls | M 6 | — | 10 | 1.0 | 7 |
| Intake manifold to cylinder head | nut | M 6 | — | 20 | 2.0 | 14 |
| Intake manifold to cylinder- head | nut | M 8 | — | 20 | 2.0 | 14 |
| Preheating pipe flange bolls | bolt | M 6 | — | 10 | 1.0 | 7 |
| Oil pump to crankcase | nut | M 8 | — | 20 | 2.0 | 14 |
| Oil drain plug | plug | M 14 x 1.5 | 9 S 20 K | 35 | 3.5 | 25 |
| Oil strainer to crankcase | nut | M 6 | — | 7 | 0.7 | 5 (60 in. lb.) |
| Oil cooler to crankcase | nut | M 6 | — | 7 | 0.7 | 5 (60 in. lb.) |
| Oil filler and breather to generator stand | gland nut | — | — | 55 | 5.5 | 40 |
| Flywheel to crankshaft | gland nut | M 28 x 1.5 | 45 S 20 KN | 350 | 35.0 | 253 |
| Clutch to flywheel | bolt | M 8x 1.5 | 8 G | 25 | 2.5 | 18 |
| Spark plugs | spark plug | M 14 x 1.25 | — | 35 | 3.5 | 25 |
| Engine to transmission | nut | M 10 | — | 30 | 3.0 | 22 |
| Engine bearer to crankcase | self-locking bolt | M 8 | 8 G | 26 | 2.6 | 18 |
| Engine bearer to crankcase | self-locking bolt | M 10 | — | 40 | 4.0 | 29 |
| Engine bearer to engine bearer mounting | bolt | M 10 | — | 40 | 4.0 | 29 |
| Generator pulley | nut | M 12 x 1,5 | — | 60 | 6.0 | 43 |
| Special nut for fan | nut | M 12 x 1.5 | 9 S 20 K | 60 | 6.0 | 43 |
| Crankshaft pulley | bolt | M 20 X 1,5 | 90 S 20 K | 45 | 4.5 | 32 |
| Engine bearer mounting to body | self-locking nut | M 8 | 8 G | 25 | 2.5 | 18 |