Engine Mechanical - 4.3L: Specifications — Chevrolet Blazer S15 facelift (1998-2005)

Fastener Tightening Specifications

Application	Specification
Application	Metric	English
Accelerator Control Cable and Cruise Control Cable Bracket Nut	9 N.m	80 lb in
Accelerator Control Cable Bracket Nut	12 N.m	106 lb in
Accelerator Control Cable Bracket Stud to Throttle Body	12 N.m	106 lb in
Air Cleaner Outlet Duct Hose Clamp	4 N.m	32 lb in
Air Cleaner Outlet Duct Wingnut	2 N.m	18 lb in
Balance Shaft Driven Gear Bolt	20 N.m + 35 degrees	15 lb ft+35 degrees
Balance Shaft Retainer Bolt	12 N.m	106 lb in
Battery Negative Cable Bolt to Engine	17 N.m	13 lb ft
Camshaft Retainer Bolt	12 N.m	106 lb in
Camshaft Sprocket Bolt	25 N.m	18 lb ft
Crankshaft Balancer Bolt	95 N.m	70 lb ft
Crankshaft Balancer Remover/Installer Bolt	25 N.m	18 lb ft
Crankshaft Pulley Bolt	58 N.m	43 lb ft
Crankshaft Rear Oil Seal Housing Bolt and Nut	12 N.m	106 lb in
Cylinder Head Bolt
First Pass	30 N.m	22 lb ft
Long Bolt Final Pass	75 degrees
Medium Bolt Final Pass	65 degrees
Short Bolt Final Pass	55 degrees
Drive Belt Idler Pulley Bolt	50 N.m	37 lb ft
Drive Belt Tensioner Bolt	50 N.m	37 lb ft
EGR Valve Inlet Pipe Clamp Bolt	25 N.m	18 lb ft
EGR Valve Inlet Pipe Nut at Exhaust Manifold	30 N.m	22 lb ft
EGR Valve Inlet Pipe Nut at Intake Manifold	25 N.m	18 lb ft
Engine Coolant Temperature (ECT) Sensor	20 N.m	15 lb ft
Engine Coolant Temperature Gage Sensor	20 N.m	15 lb ft
Engine Flywheel Bolt	100 N.m	74 lb ft
Engine Front Cover Bolt	12 N.m	106 lb in
Engine Lift Bracket Bolt	15 N.m	11 lb ft
Engine Mount Bolt (Through-bolt)	74 N.m	55 lb ft
Engine Mount Bolt to Engine	55 N.m	41 lb ft
Engine Mount Bracket Bolt to Frame	45 N.m	33 lb ft
Engine Mount Nut (Through-bolt)	63 N.m	46 lb ft
Engine Oil Cooler Pipe Clip Bolt to Oil Pan	9 N.m	80 lb in
Engine Oil Level Sensor	13 N.m	115 lb in
Engine Wiring Harness Bracket Bolt to Generator and Drive Belt Tensioner Bracket	25 N.m	18 lb ft
Engine Wiring Harness Bracket Bolt to Rear of Cylinder Head	35 N.m	26 lb ft
Engine Wiring Harness Bracket Nut to Intake Manifold	12 N.m	106 lb in
Fuel Pipe Bracket Bolt to Rear of Cylinder Head	30 N.m	22 lb ft
Generator and Drive Belt Tensioner Bracket Stud to Engine	20 N.m	15 lb ft
Ground Wire or Strap Bolt to Rear of Cylinder Head	35 N.m	26 lb ft
Lower Intake Manifold Bolt
First Pass in Sequence	3 N.m	27 lb in
Second Pass in Sequence	12 N.m	106 lb in
Final Pass in Sequence	15 N.m	11 lb ft
Oil Level Indicator Tube Bolt	12 N.m	106 lb in
Oil Pan Bolt and Nut	25 N.m	18 lb ft
Oil Pan Drain Plug	25 N.m	18 lb ft
Oil Pump Bolt to Rear Crankshaft Bearing Cap	90 N.m	66 lb ft
Power Steering Pump Bracket Bolt to Engine	41 N.m	30 lb ft
Power Steering Pump Bracket Stud Nut	41 N.m	30 lb ft
Power Steering Pump Bracket Stud to Engine	20 N.m	15 lb ft
Power Steering Pump Nut to Engine	41 N.m	30 lb ft
Power Steering Pump Rear Bracket Nut to Engine Stud	41 N.m	30 lb ft
Remote Oil Filter Adapter Mounting Bracket Bolt	30 N.m	22 lb ft
Remote Oil Filter Adapter Nut	25 N.m	18 lb ft
Remote Oil Filter Inlet and Outlet Hose Clip Bolt	10 N.m	89 lb in
Remote Oil Filter Inlet and Outlet Hose to Remote Oil Filter Adapter Bolt	35 N.m	26 lb ft
Remote Oil Filter Inlet and Outlet Hose to Remote Oil Filter Pipe Adapter Bolt	35 N.m	26 lb ft
Secondary Air Injection (AIR) Reactor Pipe Bracket Nut	41 N.m	37 lb ft
Spark Plug Wire Support Bolt	12 N.m	106 lb in
Starter Motor Wiring Harness/Transmission Cooler Pipe Bracket Bolt to Oil Pan	9 N.m	80 lb in
Transmission Bolt to Oil Pan	47 N.m	35 lb ft
Transmission Cover Bolt	12 N.m	106 lb in
Upper Intake Manifold Stud
First Pass	5 N.m	44 lb in
Final Pass	9 N.m	80 lb in
Valve Lifter Pushrod Guide Bolt	16 N.m	12 lb ft
Valve Rocker Arm Bolt	30 N.m	22 lb ft
Valve Rocker Arm Cover Bolt	12 N.m	106 lb in

FASTENER TIGHTENING SPECIFICATIONS

Engine Mechanical Specifications

Application		Metric	English
General Data
	Engine Type	V6
	Regular Production Option (RPO)	L35
	Displacement	4.3 L	262 CID
	Bore	101.60 mm	4.012 in
	Stroke	88.39 mm	3.480 in
	Compression Ratio	9.2:1
	Firing Order	1-6-5-4-3-2

Engine Mechanical Specifications

Scheme 352

Scheme 352: Sealers, Adhesives, and Lubricants

TORQUE SPECIFICATIONS

Application		Ft. Lbs (N.m)
Balance Shaft Driven Gear Bolt
First Tightening Pass		15 (20)
Final Tightening Pass		35 Degrees
Battery Negative Cable-To-Engine Bolt		13 (17)
Camshaft Sprocket Bolt		18 (25)
Crankshaft Balancer Bolt		70 (95)
Crankshaft Balancer Remover/Installer Bolt		18 (25)
Crankshaft Pulley Bolt		43 (58)
Cylinder Head Bolt
First Tightening Pass (1)		22 (30)
Final Tightening Pass (Long Bolt)		75 Degrees
Final Tightening Pass (Medium Bolt)		65 Degrees
Final Tightening Pass (Short Bolt)		55 Degrees
Drive Belt Idler Pulley Bolt		37 (50)
Drive Belt Tensioner Bolt		37 (50)
EGR Valve Inlet Pipe Clamp Bolt		18 (25)
EGR Valve Inlet Pipe-At-Exhaust Manifold Nut		22 (30)
EGR Valve Inlet Pipe-At-Intake Manifold Nut		18 (25)
Engine Coolant Temperature Sensor		15 (20)
Engine Coolant Temperature Gage Sensor		15 (20)
Engine Flywheel Bolt (2)		74 (100)
Engine Lift Bracket Bolt		11 (15)
Engine Mount Bolt (Through-Bolt)		55 (74)
Engine Mount-To-Engine Bolt		41 (51)
Engine Mount Bracket-To-Frame Bolt		33 (45)
Engine Mount Nut (Through-Bolt)		46 (63)
Engine Wiring Harness Bracket-To-Generator & Drive Belt Tensioner Bracket Bolt		18 (25)
Engine Wiring Harness Bracket-To-Rear Of Cylinder Head Bolt		26 (35)
Fuel Pipe Bracket-To-Rear Of Cylinder Head Bolt		22 (30)
Generator & Drive Belt Tensioner Bracket-To-Engine Stud		15 (20)
Ground Wire Or Strap-To-Rear Of Cylinder Head Bolt		26 (35)
Oil Pan Bolt & Nut (3)		18 (25)
Oil Pan Drain Plug		18 (25)
Oil Pump-To-Rear Crankshaft Bearing Cap Bolt		66 (90)
Power Steering Pump Bracket-To-Engine Bolt		30 (41)
Power Steering Pump Bracket Stud Nut		30 (41)
Power Steering Pump Bracket-To-Engine Stud		15 (20)
Power Steering Pump-To-Engine Nut		30 (41)
Power Steering Pump Rear Bracket-To-Engine Stud Nut		30 (41)
Remote Oil Filter Adapter Mounting Bracket Bolt		22 (30)
Remote Oil Filter Adapter Nut		18 (25)
Remote Oil Filter Inlet & Outlet Hose-To-Remote Oil Filter Adapter Bolt		26 (35)
Remote Oil Filter Inlet & Outlet Hose-To-Remote Oil Filter Pipe Adapter Bolt		26 (35)
Secondary Air Injection Reactor Pipe Bracket Nut		37 (41)
Transmission-To-Oil Pan Bolt		35 (47)
Valve Lifter Pushrod Guide Bolt		12 (16)
Valve Rocker Arm Bolt		22 (30)
INCH Lbs. (N.m)
Accelerator Control Cable & Cruise Control Cable Bracket Nut		80 (9)
Accelerator Control Cable Bracket Nut		106 (12)
Accelerator Control Cable Bracket-To-Throttle Body Stud		106 (12)
Air Cleaner Outlet Duct Hose Clamp		32 (4)
Air Cleaner Outlet Duct Wingnut		18 (2)
Balance Shaft Retainer Bolt		106 (12)
Camshaft Retainer Bolt		106 (12)
Crankshaft Rear Oil Seal Housing Bolt & Nut		106 (12)
Engine Front Cover Bolt		106 (12)
Engine Oil Cooler Pipe Clip-To-Oil Pan Bolt		80 (9)
Engine Oil Level Sensor		115 (13)
Engine Wiring Harness Bracket-To-Intake Manifold Nut		106 (12)
Lower Intake Manifold Bolt (4)
First Tightening Pass		27 (3)
Second Tightening Pass		106 (12)
Final Tightening Pass		134 (15)
Oil Level Indicator Tube Bolt		106 (12)
Remote Oil Filter Inlet & Outlet Hose Clip Bolt		89 (10)
Spark Plug Wire Support Bolt		106 (12)
Starter Motor Wiring Harness/Transmission Cooler Pipe Bracket-To-Oil Pan Bolt		80 (9)
Transmission Cover Bolt		106 (12)
Upper Intake Manifold Stud
First Tightening Pass		44 (5)
Final Tightening Pass		80 (9)
(1) Tighten bolts following sequence as shown. see scheme 431 (2) Tighten bolts following sequence as shown. see scheme 432 (3) Tighten bolts following sequence as shown. see scheme 433 (4) Tighten bolts following sequence as shown. see scheme 434