Product Overview
This manual provides essential information for the proper installation, operation, and maintenance of the Chevrolet Performance Pilot Bearing, Roller, Steel, GM LS-Series (Part Number 12557583). This component is designed to support the input shaft of the transmission, ensuring smooth engagement and disengagement of the clutch.
Image: The Chevrolet Performance Pilot Bearing, a roller-type bearing made of steel, designed for GM LS-Series applications. It features a metallic outer race and an inner race with visible roller elements, crucial for supporting the transmission input shaft.
Setup and Installation
Proper installation of the pilot bearing is critical for optimal performance and longevity. It is recommended that installation be performed by a qualified automotive technician.
Required Tools and Materials:
- Pilot bearing installation tool
- Grease (compatible lubricant, e.g., high-temperature bearing grease)
- Clean rags
- Appropriate wrenches and sockets for transmission removal/installation
Installation Steps:
- Ensure the crankshaft bore is clean and free of debris or rust. Use a clean rag to wipe down the bore.
- Apply a thin, even coat of compatible grease to the outer diameter of the pilot bearing and the inner surface of the crankshaft bore.
- Carefully align the pilot bearing with the crankshaft bore.
- Using a pilot bearing installation tool, gently tap the bearing into the crankshaft until it is fully seated. Ensure the bearing is installed squarely and not cocked.
- Verify that the bearing is flush with the crankshaft face or recessed to the manufacturer's specification.
- Remove any excess grease from the crankshaft face.
Caution: Do not use excessive force during installation, as this can damage the bearing or the crankshaft. Incorrect installation can lead to premature bearing failure and transmission issues.
Operating Considerations
The pilot bearing operates continuously when the engine is running and the transmission is engaged. Its primary function is to support the transmission input shaft, allowing it to spin independently of the crankshaft when the clutch is disengaged.
While the pilot bearing itself does not require direct user operation, its proper function is integral to the smooth operation of the clutch and transmission system. Ensure that the clutch system is correctly adjusted and maintained to prevent undue stress on the pilot bearing.
Maintenance
The Chevrolet Performance Pilot Bearing is a sealed roller bearing and typically does not require routine maintenance after installation. However, its lifespan can be extended by ensuring proper installation and by addressing any issues with the clutch or transmission system promptly.
Recommendations:
- Clutch System Inspection: During any clutch service or transmission removal, inspect the pilot bearing for signs of wear, such as excessive play, roughness when rotated, or visible damage.
- Lubrication: While the bearing is pre-lubricated, ensure that the crankshaft bore is adequately greased during installation to facilitate smooth seating and provide initial protection.
- Replacement: It is highly recommended to replace the pilot bearing whenever the clutch assembly is replaced or the transmission is removed for service, as it is a critical wear item.
Troubleshooting
Issues related to the pilot bearing often manifest as symptoms affecting clutch engagement or transmission noise. If you experience any of the following, the pilot bearing may be a contributing factor:
| Symptom | Possible Cause | Resolution |
|---|---|---|
| Squealing or chirping noise when clutch pedal is depressed. | Worn or dry pilot bearing. | Inspect and replace pilot bearing. Ensure proper lubrication during installation. |
| Difficulty shifting gears, especially into first or reverse. | Pilot bearing seizing or binding, preventing full disengagement of the transmission input shaft. | Inspect and replace pilot bearing. Check for proper clutch adjustment. |
| Vibration or shudder during clutch engagement. | Damaged or improperly installed pilot bearing. | Inspect and replace pilot bearing. Verify correct installation procedure. |
If troubleshooting steps do not resolve the issue, it is recommended to consult a professional automotive technician.
Specifications
| Attribute | Detail |
|---|---|
| Brand | Chevrolet Performance |
| Part Number / Model Number | 12557583 |
| Material | Steel |
| Bearing Type | Roller Bearing |
| Compatible Lubricant | Grease |
| Item Dimensions (L x W x H) | 3.05 x 4.4 x 0.6 inches |
| Item Weight | 3.28 ounces (0.21 pounds) |
| Outside Diameter | 1.71 Inches |
| UPC | 099998221993 |
| Country of Origin | United States |
Warranty and Support
For information regarding warranty coverage for your Chevrolet Performance Pilot Bearing (Part Number 12557583), please refer to the official Chevrolet Performance warranty documentation provided with your purchase or visit the official Chevrolet Performance website.
For technical support or further assistance, please contact Chevrolet Performance customer service or an authorized Chevrolet service center. Always provide the part number (12557583) when seeking support.
Note: The product is sold by third-party sellers on Amazon. Warranty claims should be directed to Chevrolet Performance or the authorized dealer from whom the product was purchased, not directly to Amazon or the third-party seller unless specified otherwise by the seller's policy.
