Motorcycle engine lubrication system Honda VTX1800C (2001-2008)
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Service information of lube system
Caution! Used engine oil contains substances that have been identified as carcinogenic. If repeatedly left in contact with the skin for prolonged periods, it may cause skin cancer. Wash your hands thoroughly with soap and water as soon as possible...
Caution! Used engine oil contains substances that have been identified as carcinogenic. If repeatedly left in contact with the skin for prolonged periods, it may cause skin cancer. Wash your hands thoroughly with soap and water as soon as possible...
Troubleshooting of lube system
Oil level too low Oil consumption External oil leak Worn piston ring Improperly installed piston rings Worn cylinders Worn stem seals Worn valve guide Low oil pressure Oil level low Clogged oil strainer Faulty oil pump Internal oil leak Incorrect...
Oil level too low Oil consumption External oil leak Worn piston ring Improperly installed piston rings Worn cylinders Worn stem seals Worn valve guide Low oil pressure Oil level low Clogged oil strainer Faulty oil pump Internal oil leak Incorrect...
Oil pressure check
If the engine is cold, the pressure reading will be abnormally high. Warm up the engine to normal operating temperature before starting this test. Stop the engine. Remove the bolt and sealing washer. Remove the oil pressure switch and connect an oil...
If the engine is cold, the pressure reading will be abnormally high. Warm up the engine to normal operating temperature before starting this test. Stop the engine. Remove the bolt and sealing washer. Remove the oil pressure switch and connect an oil...
Oil pump and filter — removal
Remove the engine from the frame (section 7). Separate the crankcase (page 11-4). Remove the bolts and oil pump/strainer as an assembly. Remove the dowel pin/O-ring and relief valve. Remove the dowel pins and O-ring. Remove the oil pipe and O-ring....
Remove the engine from the frame (section 7). Separate the crankcase (page 11-4). Remove the bolts and oil pump/strainer as an assembly. Remove the dowel pin/O-ring and relief valve. Remove the dowel pins and O-ring. Remove the oil pipe and O-ring....
Relief valve check
Remove the O-ring from the relief valve groove. Remove the snap ring and disassemble the relief valve. Check the spring and piston for wear or damage. Check the relief valve for clogs or damage. Assemble the parts in the reverse order of...
Remove the O-ring from the relief valve groove. Remove the snap ring and disassemble the relief valve. Check the spring and piston for wear or damage. Check the relief valve for clogs or damage. Assemble the parts in the reverse order of...
Oil pipe — removal and installation
Removal Remove the bolts and oil pipe. Remove the O-rings from the oil pipe. Installation Installation is in the reverse order of removal. Be sure to use new O-rings.
Removal Remove the bolts and oil pipe. Remove the O-rings from the oil pipe. Installation Installation is in the reverse order of removal. Be sure to use new O-rings.
Oil pump and filter — disassembly
Remove the oil pump assembly bolt. Remove the oil pump cover and dowel pins. Remove the oil scavenge pump outer rotor and inner rotor. Remove the drive pin. Remove the dowel pins, oil pump shaft, thrust washer, drive pin, feed pump outer rotor and...
Remove the oil pump assembly bolt. Remove the oil pump cover and dowel pins. Remove the oil scavenge pump outer rotor and inner rotor. Remove the drive pin. Remove the dowel pins, oil pump shaft, thrust washer, drive pin, feed pump outer rotor and...
Oil pump and filter — inspection
Temporarily install the oil pump shaft. Install the outer and inner rotors into the oil pump body and oil pump cover. Measure the tip clearance for the feed and scavenge pump. Service limits: Feed pump: 0.20 mm (0.008 in) Scavenge pump: 0.20 mm...
Temporarily install the oil pump shaft. Install the outer and inner rotors into the oil pump body and oil pump cover. Measure the tip clearance for the feed and scavenge pump. Service limits: Feed pump: 0.20 mm (0.008 in) Scavenge pump: 0.20 mm...
Oil pump and filter — assembly
Install the feed pump outer and inner rotors onto the oil pump shaft. Install the drive pin into the hole in the pump shaft and align the pin with the groove in the inner rotor as shown. Install the thrust washer onto the shaft. Install the oil pump...
Install the feed pump outer and inner rotors onto the oil pump shaft. Install the drive pin into the hole in the pump shaft and align the pin with the groove in the inner rotor as shown. Install the thrust washer onto the shaft. Install the oil pump...
Oil pump and filter — installation
Coat a new packing with engine oil and install it onto the oil strainer. Install the oil strainer into the oil pump. Install and tighten the bolt to the specified torque. Torque: 13 N·m (1.3 kgf·m, 9 lbf·ft). Coat a new O-ring with engine oil and...
Coat a new packing with engine oil and install it onto the oil strainer. Install the oil strainer into the oil pump. Install and tighten the bolt to the specified torque. Torque: 13 N·m (1.3 kgf·m, 9 lbf·ft). Coat a new O-ring with engine oil and...
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