COMP Cams Endure-X Solid Roller Lifter Set 859-16 Instruction Manual

2. Key Features

• Engine Compatibility: Designed for Pontiac V8 engines ranging from 350 to 455 cubic inches.
• Dimensions: Features a .842 inch diameter, 120 gram weight, and 2.01 inches seat height.
• EDM Oil Injection Technology: Guarantees constant, pressurized oil flow directly to the bearing assembly through a precision-drilled hole, optimizing lubrication.
• Precision Needle Bearings: Bearings are sorted by size to ensure even load distribution, which helps prevent premature wear and failure, especially in high-stress applications.
• Durable Tool Steel Axle: Constructed from wear-resistant tool steel to extend the lifespan of the roller assembly, particularly beneficial in high RPM environments.

Figure 2: Close-up view of an Endure-X Solid Roller Lifter. This image highlights the roller wheel and the robust construction of the lifter body, essential for high-performance applications.

3. Setup and Installation

Proper installation is crucial for the performance and longevity of your COMP Cams Endure-X Solid Roller Lifters. Consult a qualified engine builder or refer to a comprehensive engine assembly manual for detailed procedures specific to your Pontiac V8 engine.

3.1 Pre-Installation Checks

• Inspect Lifters: Carefully unpackage and inspect each lifter for any signs of shipping damage or manufacturing defects. Ensure the roller spins freely and smoothly.
• Clean Lifter Bores: Thoroughly clean the lifter bores in the engine block. Any debris or burrs can cause premature wear or lifter binding.
• Check Clearances: Verify that the lifter body fits correctly within the lifter bore without excessive play or binding.

3.2 Lubrication

Before installation, liberally coat each lifter, especially the roller wheel and axle, with a high-quality engine assembly lubricant or a dedicated camshaft and lifter break-in lubricant. This provides initial protection during engine startup.

3.3 Lifter Installation

1. Carefully insert each lubricated lifter into its respective lifter bore. Ensure they slide in smoothly without force.
2. If using lifter retainers or guides, install them according to engine manufacturer specifications.
3. Install the camshaft, ensuring proper alignment and lubrication.

3.4 Pushrod Length and Valve Lash

After camshaft and lifter installation, it is critical to determine the correct pushrod length and set the valve lash. Solid roller lifters require precise valve lash adjustment to ensure proper valve train geometry and prevent damage.

• Pushrod Length: Use a pushrod length checking tool to determine the optimal pushrod length for correct valve train geometry. Incorrect pushrod length can lead to excessive wear and reduced performance.
• Valve Lash: Refer to your camshaft manufacturer's specifications for the recommended hot and cold valve lash settings. Adjust each rocker arm accordingly, typically using a feeler gauge.

3.5 Initial Engine Startup and Break-in

Follow your camshaft manufacturer's recommended break-in procedure. This typically involves running the engine at varying RPMs (above idle) for a specified period to ensure proper seating of components and adequate lubrication.

4. Operating Considerations

• Engine Oil: Use a high-quality engine oil with appropriate ZDDP (Zinc Dialkyldithiophosphate) content, especially for performance applications with solid roller lifters. Consult your engine builder or oil manufacturer for recommendations.
• Oil Pressure: Maintain adequate oil pressure at all engine speeds. Low oil pressure can lead to premature lifter wear.
• RPM Limits: Adhere to the recommended maximum RPM limits for your engine and valve train components to prevent over-stressing the lifters and other parts.
• Regular Monitoring: Periodically check valve lash and listen for unusual noises from the valve train, which could indicate wear or improper adjustment.

5. Maintenance

• Oil Changes: Follow a regular oil change schedule using recommended engine oil to ensure continuous lubrication and prevent sludge buildup.
• Valve Lash Inspection: Periodically inspect and adjust valve lash as part of routine engine maintenance, especially in high-performance applications.
• Visual Inspection: During engine disassembly or major service, visually inspect lifters for any signs of wear, pitting on the roller, or discoloration.
• Rebuildability: These Endure-X lifters are fully rebuildable. If significant wear is observed, consider professional rebuilding rather than replacement to extend their service life.

6. Troubleshooting

This section addresses common issues that may arise with solid roller lifters. Always consult a professional mechanic for complex issues.

7. Specifications

8. Warranty and Support

For specific warranty information regarding the COMP Cams Endure-X Solid Roller Lifter Set 859-16, please refer to the documentation included with your purchase or visit the official Comp Cams website. Warranty terms and conditions may vary.

For technical support, installation assistance, or inquiries about product specifications, please contact Comp Cams directly through their official customer service channels. Always provide your product model number (859-16) when seeking support.

Note: Improper installation or use outside of specified operating conditions may void the product warranty.