Timing Gear Chamber 2408001200500 – JAC Yuejin QC480

Timing Gear Chamber 2408001200500 — JAC / Yuejin QC480 Diesel Engine Timing Gear Cover

This timing gear chamber part number 2408001200500 is a Kingstream OEM timing gear cover for JAC and Yuejin QC480 diesel engines in trucks, forklifts, and construction equipment. The timing gear chamber is the front housing of the engine that encloses the camshaft timing gear, crankshaft gear, and injection pump drive gear — it provides a sealed, oil-tight enclosure that contains the pressurized engine oil lubricating the timing gears while maintaining precise gear mesh alignment for accurate valve and injection timing. The chamber also serves as the mounting surface for the front crankshaft seal, preventing oil leakage where the crankshaft exits the engine. Steel construction at 2kg with 60×50×30cm packaging. 3-month warranty. MOQ 1 piece. T/T 30% deposit, Western Union, or PayPal payment. 7-15 day delivery with neutral export packing. Kingstream OEM for JAC Yuejin QC480 engine fleet operators.

INSTALLATION PROCEDURE: Step 1 — Drain engine coolant and remove the radiator and fan assembly for access. Step 2 — Remove the crankshaft pulley, vibration damper, and any front engine accessories mounted to the timing cover. Step 3 — Remove the old timing gear chamber bolts in reverse order from the torque sequence. Step 4 — Carefully pry the old chamber away from the engine block, taking care not to damage the block gasket surface. Step 5 — Thoroughly clean the engine block gasket surface with a gasket scraper and solvent to remove all old gasket material, oil, and debris. Step 6 — Inspect the block surface for corrosion, pitting, or warping — resurface if necessary. Step 7 — Apply a thin bead of RTV silicone sealant to the mating surfaces and position the new gasket. Step 8 — Install the new timing gear chamber, threading all bolts finger-tight before final torque in the specified cross-pattern sequence. Step 9 — Install a new front crankshaft seal into the chamber using a seal driver for proper alignment. Step 10 — Reinstall crankshaft pulley, vibration damper, accessories, radiator, and fan. Refill coolant and verify no oil or coolant leaks after startup. 3-month warranty. Kingstream OEM.

SYMPTOMS OF CHAMBER FAILURE: Oil leaking from the front of the engine, visible cracks in the timing cover casting, coolant contamination in engine oil from a failed gasket at the water jacket, abnormal timing gear noise from misalignment, and difficulty maintaining proper timing gear backlash. For JAC Yuejin QC480 engine fleet maintenance, contact us. Kingstream OEM.

Technical Specifications

3-month warranty. Kingstream OEM. Contact us.