engine

Main Bearings Torque Specs

for 2000 Chevrolet Astro 4.3L V6 Vortec · RWD

Units

13 fasteners

Seq

Component

Torque

Angle

—

Cover Bolts

14 lb-ft · 19 Nm

—

Electrical Connector Bolts

6 lb-ft · 8 Nm

—

Flywheel Bolts

Critical

Often TTY, tighten in star pattern | ⚠️ VERIFY SEQUENCE WITH SERVICE MANUAL

70 lb-ft · 95 Nm

—

Gasket Bolts

Critical

15 lb-ft · 20 Nm

—

Gasket Surface Bolts

Critical

Clean mating surfaces

17 lb-ft · 23 Nm

—

Main Bearing Cap Bolts

Critical

Step 1: 15 lb-ft. Step 2: +75°.

15 lb-ft · 20 Nm

75°

—

Mounting Bolts

Critical

40 lb-ft · 54 Nm

—

Oil Drain Plug

Critical

Use new crush washer | ⚠️ VERIFY SEQUENCE WITH SERVICE MANUAL

26 lb-ft · 35 Nm

—

Oil Pan Bolts

Critical

Tighten in sequence | ⚠️ VERIFY SEQUENCE WITH SERVICE MANUAL

9 lb-ft · 12 Nm

—

Oil Pump Pickup Tube

Critical

⚠️ VERIFY SEQUENCE WITH SERVICE MANUAL

9 lb-ft · 12 Nm

—

Sensor Bolts

8 lb-ft · 11 Nm

—

Sensor Mounting Bolts

9 lb-ft · 12 Nm

—

Transmission-to-Engine Bolts

Critical

⚠️ VERIFY SEQUENCE WITH SERVICE MANUAL

41 lb-ft · 55 Nm

—

2000 CHEVROLET ASTRO

13 fasteners