S&S adjustable pushrods are a popular choice for enhancing engine performance, particularly in Harley-Davidson motorcycles. They offer precise control over lash and preload settings, ensuring optimal valve train operation. Designed for durability and ease of adjustment, these pushrods are a favorite among riders seeking improved power and reliability. Their adaptability to various engine configurations makes them a versatile solution for both stock and modified engines.
1.1 What Are S&S Adjustable Pushrods?
S&S adjustable pushrods are precision-engineered components designed to optimize valve train performance in engines, particularly in Harley-Davidson motorcycles. They feature a unique adjustable mechanism that allows riders to fine-tune pushrod length, ensuring proper lash and preload settings. Constructed from high-quality materials like chromoly steel, these pushrods are built for durability and resistance to wear. Their adjustability makes them ideal for both stock engines and high-performance modifications. By enabling precise control over valve timing and clearance, S&S adjustable pushrods help maximize engine efficiency, power, and reliability. They are a popular choice among enthusiasts seeking to enhance their bike’s performance without compromising on quality or longevity.
1.2 Importance of Adjustable Pushrods in Engine Performance
Adjustable pushrods play a critical role in optimizing engine performance by ensuring precise control over valve train geometry. Proper pushrod adjustment maintains correct lash and preload, which are essential for efficient combustion and power delivery. Incorrect settings can lead to reduced performance, increased wear, and potential engine damage. S&S adjustable pushrods allow riders to fine-tune these parameters, accommodating variations in camshaft design, lifters, and engine modifications. This adjustability enhances engine efficiency, reduces mechanical noise, and prolongs component lifespan. By enabling precise adjustments, S&S pushrods help achieve optimal engine performance, making them a vital upgrade for both stock and high-performance engines. Their importance lies in their ability to customize and maintain peak engine operation under various conditions.
Key Components of S&S Adjustable Pushrods
S&S adjustable pushrods feature a robust adjustable mechanism and durable construction, typically made from high-quality materials like chrome-moly steel, ensuring longevity and reliable performance in engines.
2.1 Overview of the Adjustable Mechanism
The adjustable mechanism in S&S pushrods allows precise control over lash and preload settings. It features a threaded design that enables fine-tuning by rotating the pushrod or adjusting the nut. This mechanism is engineered to maintain consistent tension, crucial for proper valve operation. The system is designed to be user-friendly, with clear markings or indicators to guide adjustments. By turning the nut or rotating the pushrod, riders can achieve the desired specifications without specialized tools. This adjustability ensures optimal performance across different engine configurations and operating conditions, making it a versatile solution for various applications.
2.2 Materials and Construction Quality
S&S adjustable pushrods are crafted from high-strength, durable materials, ensuring reliability and longevity under demanding conditions. The rods are typically made from chromoly steel, known for its strength-to-weight ratio, or other high-quality alloys. The construction process involves precise machining to maintain tight tolerances, critical for smooth operation. Heat treatment and surface coatings, such as hard chrome plating, enhance wear resistance and corrosion protection. The adjustable mechanism is designed with robust threads and locking features to maintain settings even under heavy use. This attention to detail ensures that S&S pushrods deliver consistent performance and withstand the rigors of high-performance engines. Their superior build quality makes them a trusted choice for enthusiasts and professionals alike.
Tools and Equipment Needed for Installation
Essential tools include a thread pitch gauge, adjustable wrench, and torque wrench. Safety gear like gloves and goggles is crucial. Disconnect the battery to prevent accidental engine start.
3.1 Essential Tools for Adjusting Pushrods
Adjusting S&S pushrods requires specific tools to ensure accuracy and safety. A thread pitch gauge is vital for determining threads per inch (TPI), which affects adjustment calculations. An adjustable wrench or socket set is needed for manipulating the pushrod ends. A torque wrench ensures proper tightening without over-torquing. Feeler gauges are used to set precise lash values, while a dial indicator helps measure lifter travel. Safety gear, including gloves and goggles, protects against potential hazards. Additionally, a set of punch marks or a marker can help mark pushrod positions for reference during the adjustment process. Always refer to the manufacturer’s specifications for tool recommendations to avoid damaging components.
3.2 Safety Precautions and Protective Gear
Before starting the adjustment process, ensure the motorcycle is on a level surface and the engine is cool to avoid burns. Disconnect the battery to prevent accidental ignition or starter engagement. Wear protective gear, including gloves, safety glasses, and a face mask, to safeguard against sharp edges or debris. Use jack stands to securely support the bike, never relying solely on the kickstand. Keep loose clothing and long hair tied back to avoid entanglement with tools or moving parts. Work in a well-ventilated area, especially when handling lubricants or cleaning agents. Always follow proper adjustment procedures to prevent over-tightening, which could damage engine components. Safety should never be compromised to ensure a successful and injury-free installation process.
Step-by-Step Installation Guide
Disconnect the battery, ensure the engine is cool, and secure the bike with jack stands. Remove old pushrods, install new S&S adjustable pushrods, and align properly. Adjust to specifications without over-tightening.
4.1 Preparing the Engine for Pushrod Installation
Before installing S&S adjustable pushrods, ensure the engine is cool to avoid burns or damage. Disconnect the battery to prevent accidental ignition or starter engagement. Secure the motorcycle with jack stands for stability. Clean the area around the pushrod tubes to remove dirt or debris. Drain the cooling system if necessary, depending on your bike’s specifications. Place shop rags around the work area to catch spills. Cover the air intake to prevent contamination. Double-check all components for proper alignment and accessibility. These steps ensure a safe and efficient installation process.
4.2 Mounting the Pushrods and Ensuring Proper Alignment
Mounting S&S adjustable pushrods requires careful alignment to ensure proper engine operation. Begin by placing the pushrods into their respective housings, ensuring they are seated correctly. Use a torque wrench to tighten the mounting hardware to the manufacturer’s specifications. Check the alignment of the pushrods with the valve train components, ensuring they are concentric and not bent. Misalignment can lead to poor performance or damage. Rotate the engine to verify smooth operation and verify that the pushrods do not bind or rub against other components. Proper alignment ensures even wear and optimal performance of the valve train system.
Adjusting the Pushrods
Adjusting S&S pushrods involves setting the correct thread pitch and lash to ensure proper valve train operation. Rotate the engine and tighten the pushrods to achieve zero lash, then preload as specified. Proper adjustment ensures smooth engine operation and prevents damage.
5.1 Understanding Thread Pitch and Its Impact on Adjustment
Thread pitch refers to the number of threads per inch (TPI) on the pushrod’s adjustable end. Common TPIs include 24 and 32, with finer threads offering precise adjustments. Knowing the TPI is crucial for calculating how many turns are needed to achieve the desired lash or preload. For example, a 24 TPI pushrod requires fewer turns to make adjustments compared to a 32 TPI, which is more sensitive. Incorrect thread pitch identification can lead to over- or under-tightening, causing engine issues. Always verify the TPI before adjustment to ensure accurate tuning and prevent potential damage to the valve train components.
5;2 Setting the Correct Lash and Preload
Setting the correct lash and preload is critical for optimal engine performance. Lash refers to the small gap between the rocker arm and the valve, while preload ensures the pushrod is under slight tension. Start by bringing the cam lobe to its base circle and rotating the engine until the lifter is at the lowest point. Adjust the pushrod to achieve zero lash, then tighten an additional 1/4 to 1/2 turn for preload. Use a dial indicator to verify measurements for accuracy. Over-tightening can lead to premature wear, so follow the manufacturer’s specifications carefully. Proper adjustment ensures smooth valve operation, reduces noise, and maximizes engine efficiency. Always double-check adjustments before starting the engine to avoid potential damage.
Common Challenges and Solutions
Common challenges include misalignment, bent pushrods, and improper adjustments. Solutions involve using alignment tools, ensuring proper thread engagement, and following detailed adjustment procedures for optimal performance.
6.1 Troubleshooting Common Issues During Installation
During installation, common issues include pushrod misalignment and improper thread engagement. Misalignment can cause uneven wear or bending, while incorrect thread engagement may lead to insufficient preload. To address these, ensure the pushrods are properly seated and aligned with the lifter and rocker arm. Verify thread pitch and adjust accordingly to achieve the correct lash and preload. If pushrods are bent, replace them immediately to prevent further damage. Additionally, consult the manufacturer’s specifications for torque values and adjustment procedures. Proper installation ensures smooth engine operation and prevents premature wear on valve train components.
6;2 Resolving Misalignment or Bent Pushrods
If pushrods become misaligned or bent during installation, immediate action is required to prevent engine damage. Begin by inspecting the pushrods for visible bends or damage. If bent, replace them with new ones, as they cannot be straightened effectively. For misalignment, loosen the adjuster and carefully realign the pushrod with the lifter and rocker arm. Ensure proper seating and alignment before tightening. After adjustment, check the system for smooth operation and verify lash and preload settings. Bent or misaligned pushrods can cause uneven wear on valve train components, so addressing these issues promptly is crucial for maintaining engine performance and longevity.
Maintenance and Upkeep
Regular maintenance ensures S&S adjustable pushrods perform optimally. Inspect pushrods for wear, clean them with a soft cloth, and lubricate the threads periodically to prevent corrosion and friction.
7.1 Regular Inspection and Cleaning of Pushrods
Regular inspection and cleaning of S&S adjustable pushrods are crucial for maintaining their performance and longevity. Start by visually examining the pushrods for signs of wear, such as scratches, dents, or rust. Use a soft, lint-free cloth to wipe down the rods, removing any dirt or debris that may have accumulated. Pay particular attention to the adjustable ends and threads, as these areas are prone to corrosion. For tougher grime, a mild solvent can be used, but ensure all residues are thoroughly wiped away. After cleaning, apply a light layer of lubricant to the threads to prevent seizing and maintain smooth adjustment. This routine should be performed every 5,000 miles or as needed based on riding conditions.
7.2 Lubrication and Wear Prevention Tips
Proper lubrication is essential to prevent wear and ensure smooth operation of S&S adjustable pushrods. Use a high-quality, silicone-based spray or marine-grade grease to lubricate the pushrod ends and threads. Apply a thin, even layer to avoid attracting dirt or debris. Regular lubrication should be performed every 3,000 to 5,000 miles, depending on usage. Additionally, inspect for excessive wear on the pushrod tips and adjusters, replacing them if necessary. To prevent premature wear, avoid over-tightening and ensure proper alignment during installation. Using protective coatings or boots can also shield pushrods from heat and abrasive particles. Always follow the manufacturer’s recommendations for lubricants and maintenance schedules to maximize the lifespan of your S&S adjustable pushrods.
Advanced Techniques for Fine-Tuning
Advanced techniques involve optimizing thread pitch for precise adjustments and using specialized tools for high-performance engines; These methods ensure maximum efficiency and durability in extreme conditions.
8.1 Adjusting Pushrods for High-Performance Engines
Adjusting S&S pushrods for high-performance engines requires precise attention to thread pitch and lash settings. Start by measuring the thread pitch to determine the number of turns needed for proper adjustment. For high-performance applications, ensure the pushrods are set to the manufacturer’s specifications for optimal power delivery. Use a dial indicator to verify lash settings, as even minor deviations can impact performance. Additionally, consider the engine’s operating conditions, such as RPM range and camshaft lift, to fine-tune the adjustments. Proper preload ensures minimal wear and maximizes efficiency. Always refer to the engine’s specific requirements and consult specialized tools for accurate adjustments. This step is critical for achieving peak performance and durability in high-demand environments.
8.2 Using Specialized Tools for Precision Adjustments
For precision adjustments of S&S adjustable pushrods, specialized tools are essential. A thread pitch gauge ensures accurate measurement of threads per inch (TPI), crucial for determining adjustment increments. A dial indicator is recommended to measure lash settings precisely, while a torque wrench guarantees proper tightening of fasteners. Additionally, a precision Allen wrench or socket set is necessary for adjusting the pushrod’s internal mechanism. These tools help achieve exact settings, minimizing the risk of misalignment or uneven wear. Always refer to the manufacturer’s instructions for tool specifications. Using the right tools ensures optimal performance and longevity of the pushrods, especially in high-performance or heavily modified engines where precision is critical.
Compatibility and Installation in Different Engines
S&S adjustable pushrods are adaptable to various engines, including Harley-Davidson and other models. Their versatile design ensures compatibility, allowing seamless installation across different engine types for enhanced performance and durability.
9.1 Installing S&S Pushrods in Harley-Davidson Engines
Installing S&S adjustable pushrods in Harley-Davidson engines is straightforward when following proper guidelines. Ensure the engine is prepared by disconnecting the battery to prevent accidental start-ups. Align the pushrods with the lifter and thread them carefully to avoid cross-threading. Use the provided adjustment tool to set the correct lash and preload, referring to the manufacturer’s specifications for precise measurements. Proper installation ensures smooth operation and prevents potential damage. Always follow Harley-Davidson service manual recommendations for torque specifications and alignment. Regular maintenance and inspections are crucial to uphold performance and longevity of the pushrods in your Harley-Davidson engine.
9.2 Adaptation for Other Engine Types and Models
S&S adjustable pushrods are not limited to Harley-Davidson engines; they can be adapted to various engine types and models with proper customization. The pushrods’ universal design allows compatibility with different valve train configurations, making them a versatile choice for performance enthusiasts. Their adjustable mechanism ensures precise control over lash and preload, regardless of the engine’s specifications.
For non-Harley applications, it’s essential to verify thread pitch compatibility and ensure proper alignment with lifters and rocker arms. Custom-length pushrods may be required for certain engines, and consulting with a mechanic or S&S specialist is recommended. This adaptability makes S&S pushrods a reliable upgrade for achieving optimal engine performance across diverse engine types and models. Always follow specific installation guidelines for your engine to ensure proper functionality and longevity.
After installing S&S adjustable pushrods, ensure all adjustments are correct and verify proper engine functionality. Regular maintenance and inspections are crucial for longevity and optimal performance.
10.1 Verifying Proper Functionality After Installation
After installing S&S adjustable pushrods, ensure proper functionality by checking for any signs of binding or looseness. Verify that all adjustments are within the manufacturer’s specifications and that the pushrods are securely seated. Perform a test run of the engine to ensure smooth operation and listen for any unusual noises. Inspect the pushrods for any visible damage or misalignment. Consult the manufacturer’s instructions for specific torque values and adjustment procedures. Additionally, check for proper lash and preload settings to ensure optimal engine performance. If any issues arise, refer to troubleshooting guides or seek professional assistance to resolve them promptly. Proper verification ensures reliability and longevity of the pushrods and overall engine health.
10.2 Final Tips for Optimal Performance and Longevity
For optimal performance and longevity of S&S adjustable pushrods, regular maintenance is essential. Ensure all moving parts are well-lubricated to prevent wear and tear. Periodically inspect the pushrods for signs of misalignment or bending, addressing any issues promptly. Keep the engine clean and free from debris to avoid contamination. Always follow the manufacturer’s recommended torque specifications and adjustment guidelines. Avoid over-tightening, as this can lead to premature wear. Store the pushrods in a dry, protected environment when not in use. By adhering to these practices, you can maximize the lifespan of your S&S adjustable pushrods and maintain peak engine performance. Consistent care ensures reliability and minimizes the need for costly repairs.