Genuine Sinotruk HOWO 080V04102-0155 Valve Spring Set
This authentic Sinotruk HOWO valve spring (No de pièce: 080V04102-0155) is manufactured to exact OEM specifications, ensuring optimal engine performance and longevity. Designed for durability under extreme operating conditions, these valve springs maintain precise valve timing and seating in HOWO truck engines. The precision-engineered springs provide consistent tension throughout the engine’s RPM range, preventing valve float and ensuring proper compression in demanding heavy-duty applications.
Spécifications techniques:
Matériel: High-chromium alloy steel
Wire Diameter: 4.5 ± 0.02 mm
Diamètre extérieur: 36.5 ± 0.2 mm
Free Length: 54.5 ± 0.5 mm
Spring Rate: 32.5 N/mm ± 1.5 N/mm
Installed Height: 42.5 mm
Load at Installed Height: 195 ± 8 N
Solid Height: 31.5 ± 0.3 mm
Number of Active Coils: 6.5
Surface Treatment: Shot peened and heat-treated for fatigue resistance
Résistance à la température: -40°C to +220°C continuous operation
Compatibilité:Howo A7, T7H, T5G series with WEICHAI WP10/WP12 engines
Norme de fabrication:ISO 9001 agréé, OEM specifications
1. NOUS TRAITONS CHAQUE CLIENT COMME NOTRE AMI, ADHÉREZ AU PRINCIPE: AVANTAGE GAGNANT ET MUTUEL ;
2. UNE VARIÉTÉ DE CHOIX DE PRODUITS: QUALITÉ, MARQUE, EMBALLAGE;
3. NOUS VOUS RÉPONDRE À VOTRE DEMANDE EN 24 HEURES.
4.Fournisseur de pièces SINOTRUCK de performance professionnelle
5. NOUS SERONS EN SERVICE 24/24 HEURES DE LA JOURNÉE DE TRAVAIL.
6. CUL: NOUS VOUS OFFRIRONS LE MEILLEUR SERVICE APRÈS-VENTE.
Installation Guidelines for 080V04102-0155 Valve Spring:
Liste de contrôle de pré-installation:
1. Inspection des composants: Verify all springs for cracks, corrosion, or deformation before installation
2. Measurement Check: Measure free length and compare against specifications (54.5 ± 0.5 mm)
3. Cleanliness: Ensure valve spring seats and retainers are perfectly clean and free from debris
4. Lubrification: Apply clean engine oil to valve stems and spring seats
Étapes d'installation:
1. Spring Orientation: Install springs with closer coils toward cylinder head (where marked)
2. Compression Tool: Use proper valve spring compressor tool to avoid damage
3. Retainer Installation: Carefully install retainers and keepers while maintaining compression
4. Height Verification: Check installed height (42.5 mm) and adjust if necessary
5. Squareness Check: Ensure springs sit square to valve stem axis
Critical Warning:
• Always replace valve springs in complete sets per cylinder
• Never mix old and new springs on the same valve train
• Verify spring installed load (195 ± 8 N) using spring tester
• Check valve stem height after spring installation
Spécifications de couple:
• Rocker arm shaft bolts: 85 ± 5 Nm
• Cylinder head bolts: Refer to specific engine manual for torque sequence
Post-installation:
• Prime oil system before initial startup
• Run engine at idle for initial break-in period
• Re-torque rocker arm bolts after first 500 km d'opération
• Monitor for unusual valve train noises during initial operation
