Contents: Recommended lubricants and fluids ↧ Filling capacities (l) ↧ Brakes ↧ Ignition system ↧ Tightening torques for connections… ↧
Recommended lubricants and fluids
Engine oil - SG, SF/CC or SF/CD engine oil
Viscosity - See chart
Recommended engine oil viscosity in different temperature ranges
To facilitate engine starting and to save fuel, use oil with the lowest viscosity for the given temperature range.
Automatic Transmission - Dexron type II, HE, or III ATF Automatic Transmission Fluid.
Manual transmission:
- With aluminum alloy crankcase (gearbox type Normal duty) - oil GM 1052931 or equivalent
- With cast iron crankcase (gearbox type Heavy duty), 4-speed - API 80W-90 GL-5 oil
- With cast iron crankcase (gearbox type Heavy duty), 5 speed - Castrol Syntorq GL4 oil or equivalent
Gearbox - API 80W-90 GL-5 oil
Transfer case - Dexron II, HE or III ATF
Lubrication of chassis components - NLGI N₂ grease
Coolant - Ethylene glycol based antifreeze mixed with distilled water
Brake fluid - Delco Supreme 11 or DOT3
Clutch hydraulics - Delco Supreme 11 or DOT3
Power Steering Fluid - GM Fluid or Equivalent
Lubrication of front wheel bearings (rear wheel drive models) - molybdenum based grease NLGI N 2
Filling capacities (l)
Attention! All data is approximate. If necessary, add the appropriate fluid, bringing the level to normal.
Engine oil (with filter replacement):
- v6 engine - 4.3 l
- 1987-1991 — 4,75
- Since 1992 - 4.0
- 5.0 liter and 5.7L V8 engines - 4.75
- 7.4 liter V8 engine - 6.7
Cooling system:
V6 4.3L Engine
- 1987-1995 — 10,4
- Since 1996
- Without air conditioning - 17.5
- with air conditioning - 19
7.4 liter V8 engine
- 1987-1995
- Without air conditioning - 21.5
- with air conditioning - 22.5
- Since 1996
- Without air conditioning - 22.5
- with air conditioning - 26
Automatic transmission (replacement by removing the pan with filter replacement)
- 3-speed - 3.9
- 4-speed
- 1987-1994 — 4,75
- Since 1995
- 4L60-E transmission - 4.75
- 4L80-E transmission - 7.30
Manual transmission (GPP):
- Models 1987-1991
- With aluminum alloy crankcase (type. Gearbox Normal duty) — 1,7
- With cast iron crankcase (gearbox type Heavy duty), 4-speed - 4.0
- With cast iron crankcase (gearbox type Heavy duty), 5-speed - 3.8
- Since 1992
- Gearbox New Venture 3500 — 2.1
- Gearbox New Venture 4500 — 3.8
Brakes
Maximum residual thickness of disc brake pads is 3.1 mm
Maximum residual thickness of drum brake shoe - 1.65 mm
Ignition system
Ignition setup
4.3L V6 Engine:
- 1987 and 1989 - not adjustable, ignition timing control from processor unit
- 1990-1995 — VMT
- Since 1995 - not adjustable, ignition timing control from the processor unit
Engine 5.0L, 5.7L V8:
- 1987-1995 — VMT
- From 1996 onwards - Not adjustable, ignition timing controlled by processor unit
7.4L V8 Engine:
- 1987-1995 — 4° BTDC
- Since 1996 - Not adjustable, ignition timing control from the processor unit
Spark plug type and electrode gap:
- 1987-1995 - AC CR43TS or equivalent, 0.9mm
- Since 1996 - AC 41-932 or equivalent, 1.52 mm
(when replacing spark plugs, follow the data indicated on the underhood plate)
The order of operation of the cylinders:
- v6 engine - 1-6-5-4-3-2
- v8 engine - 1-8-4-3-6-5-7-2
Tightening torques for connections (Nm)
Gearbox filler plug - 2-24
Engine sump drain plug:
- V8 models from 1991 - 9
- The rest are 24
Manual transmission inspection/filling hole plug — 8-30
Manual transmission drain plug - 18-30
Automatic transmission pan mounting bolts - 12
Throttle body mounting bolts:
- Before 1995 - 4.5
- Since 1996 - 22
Spark plugs - 12-18
Wheel mounting nuts:
- Before 1990:
- With double rear wheels - 140
- With one rear wheel - 125
- Since 1991:
- With double rear wheels - 168
- With one rear wheel - 148
(The article is reprinted from the website: CHEVYMAN.RU)