Welcome to Honour Time Machinery Limited, your dedicated source for heavy machinery diesel engine parts. We specialize in providing premium, high-quality replacement parts for leading global brands, including Cummins, Komatsu, Caterpillar, Isuzu, Kubota, Yanmar, and Weichai. Our core product range covers essential engine components like Cylinder Liner, Piston, Piston Ring, Crankshaft Bearing, Connecting Rod Bearing, Thrust Washer, and complete Overhaul Kit. When maintaining your machinery, you need precision components such as Diesel Pump, Fuel Injector, Crankshaft, and Turbocharger to ensure longevity and optimal performance. For major engine repairs, we stock new Cylinder Block, Cylinder Head, Water Pump, Oil Pump and Connecting Rod assemblies.

Premium Engine Components for Volvo D12D Engine

We proudly supply OEM-grade replacement parts designed to resolve common oil consumption issues and other abnormal faults in the Volvo D12D engine. These components are rigorously tested to ensure they meet or exceed specifications for the original parts.

Detailed Product Specifications

The following table details the quality and transactional specifications for our standard Piston component, such as the one used in the Caterpillar 3044 engine overhaul.

Essential Engine Component Glossary

Understanding the critical components in your heavy-duty engine is key to proper maintenance and repair. Here are 10 key parts we supply, their function, and an example application:

• Piston Ring: Installed in the Piston grooves, these seal the combustion chamber and regulate oil consumption. Example: Cummins ISL Piston Ring Set.

• Cylinder Liner: A removable sleeve fitted inside the Cylinder Block that forms the cylinder wall. Example: Caterpillar 3306 Cylinder Liner.

• Crankshaft Bearing: Main bearings located in the Cylinder Block to support the crankshaft. Example: Komatsu 6D140 Crankshaft Bearing.

• Connecting Rod Bearing: Shells installed inside the Connecting Rod cap to allow smooth rotation on the crankshaft. Example: Isuzu 4BG1 Connecting Rod Bearing.

• Thrust Washer: Installed at the main bearing saddle in the Cylinder Block to control crankshaft end-play. Example: Kubota V3307 Thrust Washer.

• Turbocharger: Mounted on the exhaust manifold to use exhaust gas energy to compress intake air. Example: Yanmar 4TNV94L Turbocharger.

• Water Pump: Mounted externally on the Engine Block, it circulates coolant through the system. Example: Weichai WP12 Water Pump Assembly.

• Oil Pump: Located inside the Oil Sump/Block, it draws oil and distributes it under pressure to all moving parts. Example: Caterpillar C7 Oil Pump.

• Cylinder Head: Sits on top of the Cylinder Block, housing the valves, springs, and combustion chamber. Example: Cummins QSB6.7 Cylinder Head.

• Fuel Injector: Precision component mounted in the Cylinder Head to atomize and spray fuel into the combustion chamber. Example: Isuzu 6HK1 Fuel Injector.

Troubleshooting & Engine Maintenance Guide

Fault Example: A common issue with the Volvo D12D engine is Excessive Oil Consumption.

Potential Solution: This is often caused by worn Piston Rings or deteriorated valve seals. Replacing the full Overhaul Kit, including the specific 04255124 and 04501352 valves, with high-quality aftermarket equivalents can restore proper sealing and compression, dramatically reducing oil usage.

Essential Engineering Machinery Maintenance Tips:

• Regular Fluid Analysis: Perform regular analysis of engine oil and coolant to detect wear metals or contamination early. This is vital for the longevity of components like the Crankshaft Bearing.

• Turbo Inspection: On vehicles like the Caterpillar D8T Bulldozer, inspect the Turbocharger compressor and turbine wheels for damage and check the shaft for excessive play every 500 hours.

• Cooling System Health: For engines such as the Komatsu PC200-8 Excavator, ensure the coolant system is flushed annually to protect the Water Pump and Cylinder Head Gasket.