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This authentic Sinotruk HOWO valve lock clamp (Part No: 080V04104-0032) is precision-engineered to exact OEM specifications, providing critical security for your engine’s valve train system. Designed specifically for HOWO truck engines, this component ensures that valve keepers remain securely in place during high-RPM operation, preventing catastrophic engine failure and maintaining optimal valve timing. The hardened steel construction withstands extreme engine temperatures and continuous vibration, making it an essential safety component for heavy-duty applications
Technical Specifications:
Material: Heat-treated carbon steel (42-45 HRC hardness)
Type: Positive valve lock clamp design
Compatibility: HOWO A7, T7H, T5G series with WEICHAI WP10/WP12 engines
Temperature Resistance: -40°C to +300°C continuous operation
Surface Treatment: Phosphated for corrosion resistance and improved lubricity
Installation Torque: 8-10 Nm
Weight: 15 ± 2 grams per unit
Dimensional Accuracy: ±0.01 mm tolerance
Manufacturing Standard: ISO 9001 certified, OEM specifications
Package Quantity: Standard set of 8 pieces (for one cylinder)
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Installation Guidelines for 080V04104-0032 Valve Lock Clamp:
Pre-Installation Checklist:
1.Component Inspection: Verify part number (080V04104-0032) matches OEM requirements and inspect for any shipping damage
2.Cleanliness: Ensure all components (valve stems, retainers, and lock clamps) are perfectly clean and free from oil residue
3.Tool Preparation: Have proper valve spring compressor, magnetic pickup tool, and torque wrench ready
4.Workspace: Clean, well-lit area with adequate space to organize components systematically
Installation Steps:
1.Valve Spring Compression: Using proper valve spring compressor tool, compress spring until retainers are fully exposed
2.Old Component Removal: Carefully remove old lock clamps using magnetic pickup tool (avoid dropping components into engine)
3.New Clamp Installation: Position new lock clamps with tapered end facing toward retainer
4.Alignment Check: Ensure clamps sit evenly around valve stem with equal spacing
5.Pressure Release: Slowly release spring compressor while ensuring clamps remain properly seated
6.Verification: After installation, gently tap valve stem end with plastic hammer to ensure positive lock engagement
Critical Warning:
Always replace valve lock clamps in complete sets per cylinder
Never reuse old lock clamps when rebuilding valve train
Verify proper clamp engagement before starting engine
Check valve stem height after installation to ensure proper clearance
Torque Specifications:
Valve cover bolts: 8-10 Nm (in proper sequence)
Rocker arm shaft bolts: 85 ± 5 Nm
Post-Installation:
Prime oil system before initial startup
Run engine at idle and check for unusual valve train noises
Re-torque rocker arm bolts after first 500 km of operation
Monitor engine performance for proper valve operation
