T: +8615609213525
E: 15829336298@139.com
E: 15829336298@139.com
Room 1212-G107, Unit 2, Building 1, Block A, Shenglong Plaza, No. 80 Weiyang Road, Weiyang District, Xi'an City, Shaanxi Province
| Quantity: | |
|---|---|
Sinotruk HOWO
| Attribute | Description |
|---|---|
| Part Name | Engine Repair Kit / Engine Overhaul Kit / Top End & Bottom End Rebuild Kit |
| Kit Type | Full Engine Rebuild Kit, Top-End Kit, Piston Ring Set, Gasket Only Kit (varies) |
| Compatibility | Model-specific – e.g., SINOTRUK WD615, Weichai WP7/WP10, Cummins QSB6.7/QSL9, etc. |
| Components Included | |
| • Piston Rings (Top, Second, Oil) | |
| • Cylinder Liners (wet/dry type) | |
| • Main Bearings (Main Bushes) | |
| • Connecting Rod Bearings (Big End Bushes) | |
| • Valve Stem Seals | |
| • Head Gasket Set (cylinder head, exhaust manifold, intake) | |
| • Oil Pan Gasket, Valve Cover Gasket | |
| • O-Rings, Dowel Pins, Fasteners (in premium kits) | |
| Material | |
| • Rings: Cast iron, steel, or nitride-coated | |
| • Bearings: Steel-backed aluminum alloy or tri-metal composite | |
| • Gaskets: Multi-layer steel (MLS), graphite, rubber, or fiber composites | |
| Sizes Available | Standard (STD), +0.25mm, +0.50mm, +0.75mm (oversize options) |
| Weight | 8 – 20 kg (depending on completeness and engine size) |
| Condition | Brand new (OEM quality or high-grade aftermarket) |
| Application | Used in major engine rebuilds after damage, wear, or scheduled overhaul |
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Professional Installation Required
Must be performed by certified diesel mechanics in a clean environment.
Improper assembly can lead to immediate engine failure.
Verify Kit Contents Before Assembly
Check that all required parts are included and undamaged.
Confirm sizes match your engine’s current configuration (STD or oversize).
Inspect Block & Crankshaft Condition
Measure cylinder taper and out-of-roundness.
Check crank journals for scoring, pitting, or taper.
Regrind if necessary; select correct bearing size accordingly.
Use Proper Tools
Torque wrench, micrometer, plastigauge, ring compressor, bearing driver tools.
Never hammer directly on bearings or pistons.
Torque Fasteners to Specification
Head bolts
Main caps
Connecting rods
Follow manufacturer’s torque sequence and values for:
Many require angle-torque tightening (torque-to-yield).
Lubricate During Assembly
Bearing surfaces
Piston skirts
Cam lobes
Valve stems
Apply engine assembly lube (not motor oil) to:
Check Clearances
Rod side clearance
Main bearing end play
Piston-to-wall clearance
Valve lash (if mechanical)
Prime the Oil System Before Start-Up
Use an electric priming tool to build oil pressure before cranking.
Prevents dry start damage.
Break-In Procedure
First 500–1,000 km: Avoid sustained high RPM or full load.
Vary engine speed to seat piston rings properly.
Change oil early (after 500–1,000 km).
Dispose of Old Parts Properly
Recycle metal components (bearings, pistons).
Handle waste oil and filters responsibly
