Micro-V Belt Installation - FreeAutoMechanic

Micro-V? Belt Installation

At first glance, serpentine belt systems appear much more complicated than they actually are. With a basic understanding of the system, and a few simple rules, serpentine belts are easy to install.

Most vehicle manufacturers have anticipated potential difficulties that may occur when installing a serpentine belt. Such as:

1. Belt routing.

2. Which pulley moves to adjust belt tension.

Thanks to vehicle manufacturers, the installer will usually be able to find this information on a routing decal located on or near the engine. Belt routing can also be found in some owners' manuals. The decal diagrams belt routing around pulleys, and usually indicates direction of movement for the tensioner pulley.

If routing decal is absent, these simple rules may be helpful to the installer. 1. The v-grooved side of the belt meshes with the pulley grooves. 2. The belt basically encircles the pulley system, and is drawn in and looped around smooth pulleys.

Belt

Belt

3. Usually there is only one pulley that can be threaded incorrectly. That pulley is always near the center of the pulley group, and is always a smooth pulley (no grooves).

The only pulley that can be threaded incorrectly

IMPORTANT: This publication is designed strictly as a serpentine belt installation tool. The drives listed in the Routing Guide section of this publication are the same as those in the application catalogs designated as serpentine ...except Routing Diagrams are referenced rather than belt part numbers.

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Micro-V? Belt Installation -- continued

4. If the belt appears too short or long to be installed, it is probably threaded the wrong way around the pulley mentioned in step 3.

If this routing doesn't work...

try this.

5. Belt should be seated into all pulley grooves and belt spans free of contact with engine components.

With belt routing solved, the tensioner must be located along with its direction and manner of movement.

Serpentine belts are usually tensioned by a spring loaded idler pulley contacting the smooth backside of the belt. The powerful spring that provides tension is located within a small cannister-like housing near the pulley. The pulley pivots around the spring housing.

Spring loading on the tensioner pulley is sufficient to require a lever to pivot pulley away from belt. Manufacturers often provide a small square hole near the pulley or spring container so that a socket driver can be used to pivot pulley.

Rotate tensioner in direction of arrow to remove or install belt

Square Hole

Spring Cannister

Tensioner Pulley

If square hole is not present, tensioner pulley can sometimes be pivoted by using a socket wrench on the pulley centerbolt.

Rotate tensioner in direction of arrow to remove or install belt

Centerbolt

Tensioner Pulley

2

Micro-V? Belt Installation

A - Some 1986-79, V-8 Fords have a special hole on top of the spring cannister where a pry bar can be inserted to relieve tension.

-- continued

B - Other 1986-82, V-6 Fords use a jackscrew tension adjustment. This system works by simply turning jackscrew in or out to increase or decrease tension.

C - 1988-81, 6-cyl. American Motors vehicles are tensioned at the alternator. There is no spring loading. The alternator pivot and slot bolts must be loosened to pivot alternator.

Belt Tension Ranges for Manual Tensioners

Always use a belt tension gauge that indicates static tension, such as the Krikit Tension Gauge, Part Number 91132, to determine proper tension from the Installation Chart. Many Micro-V belts are automatically tensioned by a spring-loaded automatic tensioner, which does not require the tension to be set.

The tension ranges below are used for applications requiring manual tensioning.

? For drives with manual take-up on locked-center drives, position the belt and set tension to the prescribed Installation Tension.

? Run belt for five minutes ? If belt tension drops below Suggested Tension range, retighten belt to the Installation

Tension. This will allow the belt to seat-in and run at Suggested Tension after it has operated under normal driving conditions.

Number of Ribs

Suggested Tension (lbs.)

Ranges

Installation Tension (lbs.)

Used Belts

Installation Tension (lbs.)

New Belts

Number of Ribs

Suggested Tension (lbs.)

Ranges

Installation Tension (lbs.)

Used Belts

Installation Tension (lbs.)

New Belts

3

45-60

4

60-80

5

75-100

6

90-125

7

105-145

8

120-160

67.5 90.0 112.5 135.0 157.5 180.0

90.0 120.0 150.0 187.5 217.5 240.0

9

135-180

10

150-200

11

165-220

12

180-240

14

210-280

202.5 225.0 247.5 270.0 292.5

270.0 300.0 333.0 360.0 420.0

NOTE: A belt is considered "used" once it has been "run-in".

3

Micro-V? Belt Routing Guide for Passenger Cars & Light Trucks

Application

Diagram No. Application

Diagram No. Application

Diagram No.

ACURA

2011

MDX V-6 3.7 L

Serpentine ..............................................

RDX 4-Cyl. 2.3 L

Serpentine ..............................................

TL V-6 3.5 L; V-6 3.7 L

Serpentine ..............................................

2010

MDX V-6 3.7 L

Serpentine ..............................................

RDX 4-Cyl. 2.3 L

Serpentine ..............................................

RL V-6 3.7 L

Serpentine ..............................................

TL V-6 3.5 L; V-6 3.7 L

Serpentine ..............................................

TSX 4-Cyl. 2.4 L

Serpentine ..............................................

V-6 3.5 L

Serpentine ..............................................

ZDX V-6 3.7 L

Serpentine ..............................................

2009

CSX 4-Cyl. 2.0 L (Canada)

Serpentine; Type-S ................................

MDX V-6 3.7 L

Serpentine ..............................................

RDX 4-Cyl. 2.3 L

Serpentine ..............................................

RL V-6 3.7 L

Serpentine ..............................................

TL V-6 3.5 L; V-6 3.7 L

Serpentine ..............................................

TSX 4-Cyl. 2.4 L

Serpentine ..............................................

2008

CSX 4-Cyl. 2.0 L (Canada)

Serpentine; Type-S ................................

MDX V-6 3.7 L

Serpentine ..............................................

RDX 4-Cyl. 2.3 L

Serpentine ..............................................

RL V-6 3.5 L

Serpentine ..............................................

S6037 S6019 S6037

S6037 S6019 S6037 S6037 S6019 S6037 S6037

S6019 S6037 S6019 S6037 S6037 S6019

S6019 S6037 S6019 S6037

ACURA - Continued

2008 - Continued

TL V-6 3.2 L; V-6 3.5 L

Serpentine ..............................................

TSX 4-Cyl. 2.4 L

Serpentine ..............................................

2007

MDX V-6 3.7 L

Serpentine ..............................................

RDX 4-Cyl. 2.3 L

Serpentine ..............................................

RL V-6 3.5 L

Serpentine ..............................................

TL V-6 3.2 L; V-6 3.5 L

Serpentine ..............................................

TSX 4-Cyl. 2.4 L

Serpentine ..............................................

2006

MDX; RL V-6 3.5 L

Serpentine ..............................................

RSX 4-Cyl. 2.0 L

Serpentine; Base Model ........................ Serpentine; Type-S ................................

TL V-6 3.2 L

Serpentine ..............................................

TSX 4-Cyl. 2.4 L

Serpentine ..............................................

2005

MDX V-6 3.5 L

Serpentine ..............................................

RSX 4-Cyl. 2.0 L

Serpentine; Base Model ........................ Serpentine; Type-S ................................

TL V-6 3.2 L

Serpentine ..............................................

TSX 4-Cyl. 2.4 L

Serpentine ..............................................

2004

MDX V-6 3.5 L

Serpentine ..............................................

RSX 4-Cyl. 2.0 L

Serpentine ..............................................

TL V-6 3.2 L

Serpentine ..............................................

S6037 S6019

S6037 S6019 S6037 S6037 S6019

S6037 S6043 S6043 S6037 S6019

S6037 S6043 S6043 S6037 S6019

S6037 S6043 S6037

ACURA - Continued

2004 - Continued

TSX 4-Cyl. 2.4 L

Serpentine ..............................................

2003

CL V-6 3.2 L

Serpentine - Alt. & A.C..........................

MDX V-6 3.5 L

Serpentine ..............................................

RSX 4-Cyl. 2.0 L

Serpentine ..............................................

TL V-6 3.2 L

Serpentine - Alt. & A.C..........................

2002

CL V-6 3.2 L

Serpentine - Alt. & A.C..........................

RSX 4-Cyl. 2.0 L

Serpentine ..............................................

TL V-6 3.2 L

Serpentine - Alt. & A.C..........................

2001

CL; TL V-6 3.2 L

Serpentine - Alt. & A.C..........................

2000

TL V-6 3.2 L

Serpentine - Alt. & A.C..........................

1999

CL V-6 3.0 L

Serpentine - Alt. & A.C..........................

SLX V-6 3.5 L

Serpentine ..............................................

TL V-6 3.2 L

Serpentine - Alt. & A.C..........................

1998

CL V-6 3.0 L

Serpentine - Alt. & A.C..........................

SLX V-6 3.5 L

Serpentine ..............................................

1997

CL V-6 3.0 L

Serpentine - Alt. & A.C..........................

See Pages 77-86 For Micro-V? Belt Routing Diagrams. 4

S6019

S4003 S6037 S6043 S4003

S4003 S6043 S4003

S4003

S4003

S4003 S7011 S4003

S4003 S7011

S4003

Application

Micro-V? Belt Routing Guide for Passenger Cars & Light Trucks

Diagram No. Application

Diagram No. Application

Diagram No.

AM GENERAL

2001-1998

Hummer V-8 6.5 L Diesel

Serpentine ..............................................

1997

Hummer V-8 6.5 L Diesel

Serpentine; W/A.C.; W/Turbo ................ Serpentine; W/A.C.; W/O Turbo............

1996

Hummer V-8 5.7 L

Serpentine; W/A.C. ................................

V-8 6.5 L Diesel

Serpentine; W/A.C.; W/Turbo ................ Serpentine; W/A.C.; W/O Turbo............

AUDI

2011

A3 4-Cyl. 2.0 L Diesel

Serpentine ..............................................

A4 4-Cyl. 2.0 L

Serpentine ..............................................

Q5 4-Cyl. 2.0 L

Serpentine ..............................................

V-6 3.2 L

Serpentine ..............................................

S6 V-10 5.2 L

Serpentine ..............................................

2010

A3 4-Cyl. 2.0 L

Serpentine ..............................................

4-Cyl. 2.0 L Diesel

Serpentine ..............................................

A4 4-Cyl. 2.0 L

Serpentine ..............................................

A5 4-Cyl. 2.0 L

Serpentine ..............................................

V-6 3.2 L

Serpentine ..............................................

A6 V-6 3.0 L

Serpentine - Alt. & A.C..........................

V-6 3.2 L

Serpentine ..............................................

V-8 4.2 L

Serpentine ..............................................

A8 V-8 4.2 L

Serpentine ..............................................

Q5 V-6 3.2 L

Serpentine ..............................................

Q7 V-6 3.0 L Diesel

Serpentine ..............................................

V-6 3.6 L

Serpentine ..............................................

V-8 4.2 L

Serpentine ..............................................

S6 V-10 5.2 L

Serpentine ..............................................

S7010

S7010 S8004

S7010 S7010 S8004

S4008 S6030 S6030 S7029 S4006

S4003 S4008 S6030 S6030 S7029 S7029 S7029 S4006 S4006 S7029 S9014 S7046 S4001 S4006

AUDI - Continued

2010 - Continued

TT 4-Cyl. 2.0 L

Serpentine; Eng. Designation CCTA..... Serpentine; Eng. Designation CDMA....

2009

A3 4-Cyl. 2.0 L

Serpentine ..............................................

V-6 3.2 L

Serpentine ..............................................

A4 4-Cyl. 2.0 L

Serpentine ..............................................

V-6 3.2 L

Serpentine; Eng. Designation CALA ..... Serpentine; Eng. Designation BKH .......

A5 V-6 3.2 L

Serpentine ..............................................

A6 V-6 3.0 L; V-6 3.2 L

Serpentine ..............................................

V-8 4.2 L

Serpentine ..............................................

A8 V-8 4.2 L

Serpentine - Alt......................................

Q5 V-6 3.2 L

Serpentine ..............................................

Q7 V-6 3.0 L Diesel

Serpentine ..............................................

V-6 3.6 L

Serpentine ..............................................

V-8 4.2 L

Serpentine - Alt......................................

S4 V-8 4.2 L

Serpentine ..............................................

S6; S8 V-10 5.2 L

Serpentine ..............................................

TT 4-Cyl. 2.0 L

Serpentine - Alt. & A.C.; Eng. Designation CCTA ......................................

Serpentine - Alt. & A.C.; Eng. Designation CDMA .....................................

V-6 3.2 L

Serpentine ..............................................

2008

A3 4-Cyl. 2.0 L

Serpentine ..............................................

V-6 3.2 L

Serpentine ..............................................

A4 4-Cyl. 2.0 L

Serpentine ..............................................

V-6 3.2 L

Serpentine ..............................................

A5 V-6 3.2 L

Serpentine ..............................................

A6 V-6 3.2 L

Serpentine ..............................................

V-8 4.2 L

Serpentine - Alt......................................

S4003 S4003

S4003 S7045

S6030 S7029 S7029

S7029

S7029 S4001

S4001

S7029

S9014 S7046 S4001 S4006 S4001

S4003 S4003 S7045

S4003 S7045 S6030 S7029 S7029 S7029 S4001

AUDI - Continued

2008 - Continued

A8 V-8 4.2 L

Serpentine - Alt......................................

Q7 V-6 3.6 L

Serpentine ..............................................

V-8 4.2 L

Serpentine - Alt......................................

RS4 V-8 4.2 L

Accessory Drive .....................................

S4 V-8 4.2 L

Serpentine ..............................................

S6; S8 V-10 5.2 L

Serpentine - Alt......................................

TT 4-Cyl. 2.0 L

Serpentine ..............................................

V-6 3.2 L

Serpentine ..............................................

2007

A3 4-Cyl. 2.0 L

Serpentine ..............................................

V-6 3.2 L

Serpentine ..............................................

A4 4-Cyl. 2.0 L

Serpentine ..............................................

V-6 3.2 L

Serpentine ..............................................

A6 V-6 3.2 L

Serpentine ..............................................

V-8 4.2 L

Serpentine - Alt......................................

A8 V-8 4.2 L

Serpentine - Alt......................................

Q7 V-6 3.6 L

Serpentine ..............................................

V-8 4.2 L

Serpentine - Alt......................................

RS4 V-8 4.2 L

Accessory Drive .....................................

S4 V-8 4.2 L

Serpentine ..............................................

S6; S8 V-10 5.2 L

Serpentine - Alt......................................

2006

A3 4-Cyl. 2.0 L

Serpentine ..............................................

V-6 3.2 L

Serpentine ..............................................

A4 4-Cyl. 1.8 L; 4-Cyl. 2.0 L

Serpentine ..............................................

V-6 3.0 L

Serpentine; W/Viscous Fan ................... Serpentine; W/O Viscous Fan...............

V-6 3.2 L

Serpentine ..............................................

See Pages 77-86 For Micro-V? Belt Routing Diagrams.

S4001 S7046 S4001 S4006 S4006 S4001 S4003 S7045

S4003 S7045 S6030 S7029 S7029 S4001 S4001 S7046 S4001 S4006 S4006 S4001

S4003 S7045 S6030 S6039 S5021 S7029

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