Yella Terra Race Roller Rocker Inspection & Rebuild Service
At Yella Terra, we offer a comprehensive inspection and rebuild service for all Yella Terra Race Rockers, including our Platinum Race Rockers. Whether you use them for drag racing, circuit racing, or high-performance street applications, our professional service ensures optimal performance, reliability, and extended lifespan.
What Our Inspection & Rebuild Service Covers:
1. Roller Nose Inspection
- We check for surface wear, scoring, and misalignment.
- Worn or damaged roller tips can cause excessive valve guide wear and reduce efficiency.
- If necessary, we replace roller noses with high-quality replacements from our inventory.
2. Bearing Condition Check & Replacement
- Bearings endure extreme loads and high RPM stress—we check for excessive play, wear, or failure.
- If needed, we replace them with precision-machined, heavy-duty bearings to restore factory performance.
3. Shaft & Trunnion Inspection
- We assess trunnion condition, shaft wear, and alignment to prevent failure.
- Cracks, deflection, or excessive play in the shaft can lead to valvetrain instability.
- We offer replacement trunnions and shafts for worn-out components.
4. Complete Rocker Restoration & Reassembly
- Thorough cleaning and reassembly using race-proven performance parts.
- All components are checked to ensure correct tolerances, torque specs, and alignment.
Why Choose Yella Terra for Rocker Rebuilds?
- Expert Technicians – Over 60 years of valvetrain experience
- We are the manufacturers - so you are dealing with the company that has designed and made kits.
- Thousands of OEM & Performance Parts in Stock – Quick turnaround.
- Cost-Effective Alternative – In some instances Restoring rockers costs significantly less than replacing a full set.
Contact Us Today!
Restore the performance of your Yella Terra Platinum Race Rockers with our professional inspection and rebuild service. Call now or email sales@yellaterra.com.au.
Inspection Frequency for Race Rockers in Street Cars
For normal street cars, race rockers should be inspected based on mileage, driving conditions, and valvetrain setup. Unlike race engines, which see extreme stress, street-driven performance engines experience lower cyclic loads but still require periodic checks.
|
Driving Style |
Inspection Interval |
Key Checks |
|
Daily Driving (light use) |
Every 15,000 - 20,000 miles |
General wear, pushrod/valve tip contact |
|
Performance Street Use (aggressive driving) |
Every 10,000 - 15,000 miles |
Check for loose lash, deflection |
|
Street/Strip Use (occasional track days) |
Every 5,000 - 7,500 miles |
Inspect fatigue, roller bearing wear |
|
Full Drag or Track Use |
Every 1,000 - 3,000 miles |
Check for cracks, deflection, roller tip wear |
What to Look for During Inspection
- Valve Clearance Changes – Increasing lash can indicate wear or fatigue.
- Roller Tip & Bearings – Look for rough spots, play, or discoloration.
- Pushrod Contact – Ensure proper alignment with no excessive side loading.
- Deflection & Cracks – Any visible bending or surface fractures mean replacement is needed.
- Oil Contamination – shavings in oil can signal rocker fatigue.
For Platinum Race Rockers (900-1000 lbs spring pressure), track-driven street cars should check them at every major service (~5,000 miles) and replace them if signs of fatigue appear. Daily-driven performance cars can go 10,000+ miles between checks if no issues arise.
