Contents: General information ↧ Camshaft ↧ Cylinder head ↧ Exhaust manifold ↧ Tightening torques for threaded… ↧
In-line 6-cylinder engine Ignition order 1-5-3-6-2-4
General information
Working volume - 4.2 l
Cylinder diameter and piston stroke - 92.964 x 102.108 mm
Compression ratio - 10:1
Cylinder numbers - 1-2-3-4-5-6
The firing order of the cylinders is 1-5-3-6-2-4
Camshaft
Neck diameter
- Exhaust camshaft, journal No. 1 — 29.957 - 25.982 mm
- Exhaust camshaft journals 2-7, as well as all intake camshaft journals — 26.954 - 26.980 mm
Axial play
- Intake camshaft - 0.0508 - 0.2007 mm
- Exhaust camshaft - 0.0432 - 0.2134 mm
Cam lift
- Intake camshaft - 6.960 - 7.061 mm
- Exhaust camshaft - 7.188 - 7.290 mm
Cylinder head
The deviation limit from the plane is 0.05 mm deviation for every 100 mm of the surface
Exhaust manifold
The limit of warpage of the mating surface is 0.076 mm
Tightening torques for threaded connections - Nm
Camshaft Cover Bolts - 12
Camshaft Sprocket Bolt
Intake valves
- Stage 1 - 20
- Stage 2 - Turn 100° further
Exhaust valves (drive device)
- Stage 1 - 24
- Stage 2 - Tighten 135°
Cylinder head bolts (tightening sequence shown on illustrations 9.13)
- Stage 1 Tighten the long head bolts (1 - 14) in the sequence shown to torque - 30
- Step 2 - Tighten the same bolts in the same sequence by 155°
- Stage 3 Tighten bolt #15 to 7 Nm and turn it further by 120°
- Stage 4 Tighten bolt No. 16 and 17 with a torque of 7 Nm and turn further by an angle of 60°
Cylinder head service hole plugs - 5
Crankshaft pulley bolt
- Stage 1 - 149
- Stage 2 - Turn 180° (half a turn)
Drive chain
- Tensioner Shoe Bolt - 26
- Tensioner Guide Bolt - 10
- Tensioner bolts - 24
- Upper Chain Guide Bolts - 10
- Intake Manifold Bolts - 10
- Exhaust Manifold Bolts - 24
Drive Disc to Crankshaft Fastening Bolts
- Stage 1 - 24
- Stage 2 - Turn 50° further
Front Engine Cover Bolts - 10
Crankshaft rear oil seal housing bolts - 10
Pallet mounting bolts
- Side - 24
- End - 10
Oil pan cover bolts - 10
Oil pump bypass valve plug - 14
Engine mount nuts (upper and lower) — 71
Engine mount bracket to frame mounting bolts - 10
Valve cover bolts - 10
[Information taken from the official website «chevyman.ru»]