Technical data of the 3.8 liter engine (V6) (Chevrolet Lumina 1)

General characteristics of the engine

Cylinder numbering (from drive belt to gearbox):

• Front row (from the radiator side) — 1-3-5
• Back row - 2-4-6

The firing order in the cylinders is 1-6-5-4-3-2

Valve lifters

Diameter - 0.8420-0.8427 inches

Clearance between tappet and bore - 0.0008-0.0025 inches

Oil pump

External clearance between gear and housing - 0.008-0.015 inches

Internal clearance between gear and housing - 0.008-0.015 inches

Tightening torques ft-lbs

(unless other units are specified)

Camshaft Sprocket Mounting Bolts:

• First stage - 74
• The second stage is at 105°

Cylinder head bolts:

• First stage - 35
• The second stage is at 130°
• Stage Three - Four Central Bolts - 30°

Exhaust manifold to cylinder head mounting bolts - 38

Intake Manifold to Cylinder Head Bolts and Nuts - 88 in-lbs

Oil pan mounting bolts - 124 in-lbs

Oil filter flange to camshaft chain cover mounting bolts — 22

Oil pump:

• Bolts securing the pump cover to the valve timing chain cover — 97 in-lbs
• Receiver Tube and Screen Assembly Bolts - 132 in-lbs

Valve Cover Nuts and Bolts - 88 in-lbs



Valve rocker post - 28

Timing chain cover mounting bolts — 22

Anti-vibrator center bolt:

• First stage - 110
• The second stage is at 76°

Original version of the article on the website: CHEVYMAN.RU