1990-1993 Buick Riviera Radiator Torque Specs

3.8L V6

Applies to 1990, 1991, 1992, and 1993 Buick Riviera

Labor Time:2 hours

Torque Values (11 specifications)

Component	Nm	lb-ft	Notes
Cover Screws	12	9	—
Drain Petcock	8	6	Hand tight
Fan Shroud Bolts	8	6	—
Hose Clamps	5	3	—
⚠️ Housing Bolts	16	12	—
Lower Hose Clamp	4	3	—
Mounting Bolts	31	23	—
⚠️ Pump Bolts	28	21	—
Radiator Mount Bolts	15	11	—
⚠️ Transmission Cooler Lines	30	22	Use new O-rings
Upper Hose Clamp	4	3	—

The primary torque specification for radiator on a 1990-1993 Buick Riviera is 12 Nm (9 lb-ft).

There are 11 torque specifications for radiator on the 1990-1993 Buick Riviera 3.8L V6, covering all related fasteners and components.