ACDelco Gold TB170 Timing Belt Instruction Manual

1. Introducció i finalview

The ACDelco Gold TB170 Timing Belt is a premium aftermarket replacement component designed to ensure precise engine timing. This belt plays a critical role in synchronizing the rotation of the engine's crankshaft and camshaft(s), which in turn controls the opening and closing of the engine's valves. Proper function of the timing belt is essential for engine performance and longevity.

ACDelco Gold (Professional) parts are manufactured to meet your expectations for fit, form, and function, making them a smart choice for General Motors vehicles, as well as most makes and models, including special applications. This manual provides guidance on the product's features, installation considerations, maintenance, and specifications.

Imatge 1.1: acabatview of ACDelco Belts & Hoses product line, featuring a drive belt and coolant hose.

2. Característiques del producte

• Substitució premium del mercat de recanvis: This timing belt offers a high-quality alternative to Original Equipment (OE) parts.
• Dissenyat per al rendiment: Manufactured to meet specifications for fit, form, and function, ensuring reliable operation.
• Àmplia compatibilitat: Suitable for General Motors vehicles and a wide range of other makes and models.
• Marca de confiança: Backed by General Motors, ensuring quality and reliability.
• Gold Series Quality: Some ACDelco Gold parts may have formerly appeared as ACDelco Professional, signifying a consistent standard of quality.

Image 2.1: Illustration representing an Original Equipment (OE) belt.

Image 2.2: Illustration representing an ACDelco Gold series belt.

3. Pautes d'instal·lació

WARNING: Timing belt installation is a complex procedure that requires specialized tools and expertise. Improper installation can lead to severe engine damage. It is highly recommended that installation be performed by a certified automotive technician.

While specific steps vary by vehicle make and model, general considerations for timing belt installation include:

1. La seguretat primer: Disconnect the battery and ensure the engine is cool before beginning any work.
2. Vehicle-Specific Procedures: Always consult the vehicle manufacturer's service manual for precise instructions, torque specifications, and timing marks.
3. Inspecció de components: Inspect related components such as tensioners, idler pulleys, and water pump (if driven by the timing belt) for wear and replace as necessary.
4. Timing Alignment: Ensure crankshaft and camshaft timing marks are correctly aligned before removing the old belt and installing the new ACDelco Gold TB170.
5. Tensió: Properly tension the new timing belt according to manufacturer specifications to prevent premature wear or slippage.
6. Comprovació posterior a la instal·lació: After installation, manually rotate the engine crankshaft two full revolutions and re-check timing marks to confirm correct alignment.

Image 3.1: An ACDelco drive belt laid out on a workbench, illustrating its construction.

4. Principis de funcionament

The timing belt is a crucial component in an internal combustion engine, responsible for maintaining the precise synchronization between the crankshaft and camshaft(s). This synchronization ensures that the engine's valves open and close at the correct times in relation to the piston's position, allowing for efficient air intake, compression, combustion, and exhaust.

The ACDelco Gold TB170 Timing Belt is designed to withstand the high stresses and temperatures within the engine compartment, providing reliable power transmission and maintaining accurate engine timing throughout its service life. Its robust construction helps prevent stretching and tooth wear, which are critical for consistent engine operation.

Imatge 4.1: Un primer pla view of an ACDelco drive belt, highlighting its ribbed surface and branding.

5. Manteniment i Inspecció

Regular inspection and timely replacement of the timing belt are vital for preventing catastrophic engine failure. Consult your vehicle's owner's manual for recommended inspection and replacement intervals, which typically range from 60,000 to 100,000 miles, or every 5-7 years, depending on the vehicle and driving conditions.

Punts d'inspecció:

• Cracks or Fraying: Look for any visible cracks, fraying, or material degradation on the belt's surface.
• Missing or Damaged Teeth: Inspect the belt teeth for signs of wear, rounding, or missing sections.
• Glazing or Hardening: A shiny or hardened appearance can indicate excessive heat and wear.
• Oil or Coolant Contamination: Any signs of oil or coolant on the belt indicate a leak that must be addressed immediately, as these fluids can severely degrade belt material.
• Tensió: Ensure the belt maintains proper tension. A loose belt can skip teeth, leading to timing issues.

NOTE: If any signs of significant wear or damage are observed, the timing belt should be replaced immediately by a qualified technician.

6. Resolució de problemes comuns

A failing timing belt can manifest in several ways. If you experience any of the following symptoms, have your vehicle inspected by a professional immediately:

• Fallades d'encesa del motor o ralentí irregular: Incorrect timing can cause cylinders to fire out of sequence.
• Soroll de tic-tac del motor: This could indicate a loose or worn timing belt, or issues with related components like tensioners.
• El motor no arrenca: Una corretja de distribució trencada impedirà que el motor arrenqui, ja que el cigonyal i l'arbre de lleves ja no estan sincronitzats.
• Llum de revisió del motor: Modern vehicles may trigger a "Check Engine" light if timing issues are detected.
• Pèrdua de potència: Improper valve timing can lead to reduced engine efficiency and power output.

IMPORTANT: Do not attempt to drive a vehicle with a suspected broken timing belt, especially in interference engines, as this can cause severe and irreversible damage to pistons and valves.

7. Especificacions

8. Garantia i Suport

ACDelco Gold parts are backed by General Motors, ensuring a commitment to quality and customer satisfaction. For specific warranty details pertaining to your ACDelco Gold TB170 Timing Belt, please refer to the warranty information provided with your purchase or visit the official ACDelco weblloc.

For technical support, product inquiries, or to locate a certified service center, please visit the official ACDelco website or contact their customer service department. Always provide your product model number (TB170) and manufacturer part number (88933113) when seeking support.

Official ACDelco Weblloc: www.acdelco.com