China Naming Network - Naming consultation - How to replace the cylinder liner of the fifth cylinder?

How to replace the cylinder liner of the fifth cylinder?

Drain lubricating oil and cooling water from the collection.

Remove intake and exhaust manifolds and cooling water pipes.

Remove the valve cover, remove the cylinder head bolts in turn, and then remove the cylinder head.

Remove the cover plate of the third observation window on the assembly side, and remove the fifth piston connecting rod group through the observation window.

Remove the fifth cylinder liner with professional tools.

Clean the removed cylinder liner, remove the old rubber fengshui ring, and use a triangular scraper or other tools to remove oil stains.

Check the cylinder liner mounting hole of the engine block for cracks, damage, deformation and edge locking.

First, put the cylinder liner and the copper gasket with rubber water ring that is not pressed according to the chapter into the machine body, then press the cylinder liner firmly on the static surface, and then measure the distance from the upper end surface of the cylinder liner to the top surface of the machine body with a depth separation caliper, which is 0.04-0.15 mm.

Check whether the distance difference between the upper end faces of the two cylinder liners used for the cylinder head protruding from the top surface of the engine body is within 0.04 mm.

Install rubber water seal ring as required. During installation, the smooth surface of the rubber water seal ring should be evenly attached along the circumferential direction, without distortion. If improperly assembled, the cylinder liner will be deformed and the water jacket will leak.

Install the cylinder liner and copper gasket of rubber water ring into the machine body, and measure the distance between holes in the cylinder liner to meet the specified scale.

Install the piston connecting rod group into the cylinder, tighten the connecting bolt according to the specified torque, and then turn the crankshaft flexibly without binding.

Assemble the cylinder liner assembly. Tighten the cylinder liner bolts in the specified order, adjust the valve clearance, and cover the valve cover. Press in exhaust manifold and cooling water pipes.

Adding oil and water to start the engine depends on the operation.

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