The oil pump is driven by the crankshaft. The bypass valve in the oil pump maintains the pressure in the engine lubrication system at a certain level. If it is exceeded, the bypass valve opens and part of the oil flows back into the oil pan.
The filter has a bypass valve, through which, in the event of severe contamination of the filter, the crude oil enters directly into the oil line. The oil purified by the oil filter enters the main oil line.
Next, the oil flow is divided into two streams. One stream of oil is supplied to the main bearings of the crankshaft, and through the drilled channels lubricates the connecting rod bearings. To cool the pistons, oil is sprayed through sprayers onto the bottom of the pistons.
The second oil flow is channeled to the cylinder head to lubricate the camshaft bearings and to the hydraulic tappets.
After passing through the head and cylinder block, the oil drains into the oil pan.
Lubrication system for 1.8 and 2.0 l engines
Name | Rated values |
Oil pump | |
Gap between outer gear and front cover, mm | 0,120–0,185 |
Gap between outer and inner gears, mm | 0,025–0,069 |
Axial clearance of the internal gear of the oil pump, mm | 0,04–0,085 |
Axial clearance of the outer gear of the oil pump, mm | 0,04–0,09 |
Idling oil pressure at oil temperature 90–100°C, kpa | 166 |
Spring | |
Free length, mm | 43,8 |
Length under load 3.7 kg, mm | 40,1 |
Engine lubrication system 1.6 l
Name | Rated values |
Oil pump | |
Gap between outer gear and front cover, mm | 0,120–0,180 |
Gap between outer and inner gears, mm | 0,025–0,069 |
Axial clearance of the internal gear of the oil pump, mm | 0,04–0,085 |
Axial clearance of the outer gear of the oil pump, mm | 0,06–0,11 |
Idling oil pressure at oil temperature 90–100°C, kpa | 147 |
Spring | |
Free length, mm | 46,6 |
Length under load 6.1 kg, mm | 40,1 |
Sealant
Data | Meaning |
coolant temperature sensor | LOCTITE 262 No. 1324 or equivalent |
Oil pressure sensor | 3M ATD #8660 or Three bond #1141E |
Lubrication system for diesel engines 2.0 l
Name | Rated values |
Oil pressure at 1500 min–1 and oil temperature 90–105°C, kpa | 250 |
Oil pump | |
Gap between outer and inner gears, mm | 0,12–0,2 |
Radial clearance, mm | 0,13–0,23 |
Axial clearance, mm | 0,02–0,07 |
Spring | |
Free length, mm | 47,5 |
Opening pressure, kpa | 570±50 |
Tightening torques for threaded connections of gasoline engines, N·m
Data | Meaning |
Oil filter | 12–16 |
Oil pan bolts | 10–12 |
Oil pan drain plug | 35–45 |
Bolts of fastening of the mesh oil filter | 15–22 |
Oil pressure sensor | 13–15 |
Oil Control Valve Bolt | 10–12 |
OCV filter | 41–51 |
Tightening torques for threaded connections of diesel engines, Nm
Data | Meaning |
Oil pan bolts | 10–12 |
Oil pan drain plug | 35–45 |
Oil filter | 10–12 |
Oil pressure sensor | 15–22 |
Bolt of fastening of an arm of the oil filter | 34–38 |
Oil pump mounting bolts | 20–27 |
Safety valve plug | 20–27 |
Bolt of fastening of a sprayer of oil | 9–13 |
Bolt of fastening of a rotor of the oil pump | 8–10 |
Bolts of fastening of a forward cover | 10–12 |
Pressure relief plug | 42–52 |
Oil level sensor | 10–12 |