Engine Lubrication System Suzuki Grand Vitara I рестайлинг

The oil pump is of a trochoid type, and mounted under the crankshaft. Oil is drawn up through the oil pump strainer and passed through the pump to the oil filter. The filtered oil flows into 3 paths in cylinder block.

In one path, oil reaches the crankshaft journal bearings. Oil from the crankshaft journal bearings is supplied to the connecting rod bearings by means of intersecting passages drilled in the crankshaft, and then injected from the big end of connecting rod to lubricate piston, rings, and cylinder wall. In other paths oil goes up to the cylinder heads and lubricates valves and camshafts, etc., after passing through the internal oil way of camshafts. An oil relief valve is provided on the oil pump. This valve starts relieving oil pressure when the pressure exceeds about 430 kPa (4.3 kg/cm 2 , 61.1 psi).

Scheme 1

Oil Pressure Check

Note. Prior to checking oil pressure, check the following

1. Oil level in oil pan If oil level is low, add oil up to Full level hole on oil level gauge.
2. Oil quality If oil is discolored or deteriorated, change it. For particular oil to be used, refer to Engine Oil and Filter Change in Owner's Manual .
3. Oil leaks. If leak is found, repair it.

Scheme 2

Scheme 3

Scheme 4

1. Remove oil pressure switch (1) from cylinder block.
2. Install special tool (oil pressure gauge) to vacated threaded hole. Use oil pressure gauge (special tool (A)) with special tool (B) instead of the steel adaptor supplied in special tool (A). Special tool A: 09915-77310 B: 09915-76510
3. Start engine and warm it up to normal operating temperature.
4. After warning up, raise engine speed to 4000 RPM and measure oil pressure. Oil pressure specifications: 390 - 470 kPa (3.9 - 4.7 kg/cm 2 , 55.5 - 66.8 psi) at 4000 RPM
5. After checking oil pressure, stop engine and remove oil pressure gauge.
6. Before reinstalling oil pressure switch, be sure to wrap its screw threads with sealing tape and tighten switch to specified torque. Tightening torque Oil pressure switch (a): 14 N.m (1.4 kg-m, 10.5 lb-ft) NOTE: If sealing tape edge is bulged out from screw threads of switch, cut it off.
7. Start engine and check oil pressure switch for oil leakage.

Scheme 5

Scheme 6

Scheme 7

Scheme 8

1. Remove oil level gauge guide.
2. Raise vehicle and remove both front wheels.
3. Remove rack and pinion assembly. Refer to «P/S GEAR BOX ASSEMBLY REMOVAL AND INSTALLATION»(/suzuki/grand-vitara/i-2000-2006/remont/manual-power-steering/#power-assisted-steering-system) .
4. Remove front differential housing (1) with differential (2) from chassis if equipped. Refer to «FRONT DIFFERENTIAL DISMOUNTING AND REMOUNTING»(/suzuki/grand-vitara/i-2000-2006/remont/differentials-drive-axles/#differentials) .
5. Drain engine oil by removing drain plug (3).
6. Remove lower oil pan (2) from upper oil pan (1).
7. Remove oil strainer bracket.
8. Detach radiator outlet pipe from upper oil pan.
9. Remove upper oil pan according to the following procedure. Lower upper oil pan until it stops by way of cross member and oil pump strainer and keep it at that position temporarily. With wrench inserted between upper oil pan and lower crankcase, and oil pump strainer mounting bolt removed, remove oil pump strainer (1). Then remove upper oil pan from temporarily supported position.

Scheme 9

Scheme 10

Scheme 11

Scheme 12

Scheme 13

Scheme 14

Scheme 15

1. Install new O-ring (1) to lower crankcase as shown in the figure.
2. Install two new O-rings to oil pump strainer.
3. Apply sealant "A" to upper oil pan (1) sealing surface area as shown in the figure. Sealant: 99000-31250
4. Place the upper oil pan (1) on the cross member and suspension member (just beneath the lower crankcase). At this point install oil pump strainer. Tightening torque Oil pump strainer bolt (a): 11 N.m (1.1 kg-m, 8.0 lb-ft)
5. Install upper oil pan (1) to lower crankcase. Tightening torque Oil pan bolt (to lower crankcase) (b): 11 N.m (1.1 kg-m, 8.0 lb-ft) Oil pan bolt (to lower crankcase) (c): 27 N.m (2.7 kg-m, 19.5 lb-ft)
6. Install bracket (3) to oil pump strainer (2) and upper oil pan (1). Tightening torque Oil pump strainer bracket bolt (d): 11 N.m (1.1 kg-m, 8.0 lb-ft)
7. Apply sealant "A" to lower oil pan sealing surface area as shown in the figure. Sealant: 99000-31250
8. Install lower oil pan to upper oil pan. Tightening torque Oil pan bolt (to upper oil pan) (e): 11 N.m (1.1 kg-m, 8.0 lb-ft)
9. Install new gasket (1) and drain plug (2) to oil pan. Tightening torque Engine oil drain plug (f): 50 N.m (5.0 kg-m, 36.5 lb-ft)
10. Attach radiator outlet pipe to upper oil pan.
11. Install front differential housing «FRONT DIFFERENTIAL DISMOUNTING AND REMOUNTING»(/suzuki/grand-vitara/i-2000-2006/remont/differentials-drive-axles/#differentials) .
12. Install rack and pinion assembly. Refer to «P/S GEAR BOX ASSEMBLY REMOVAL AND INSTALLATION»(/suzuki/grand-vitara/i-2000-2006/remont/manual-power-steering/#power-assisted-steering-system) .
13. Refill front differential housing with gear oil if drained, referring to Gear Oil Replacement in Owner's Manual .
14. Install oil level gauge guide with new O-ring.
15. Refill engine with engine oil referring to Engine Oil and Filter Change in Owner's Manual .
16. Check wheel alignment, referring to «SPECIFICATIONS & PROCEDURES»(ref-161736) .

Scheme 16

Scheme 17

1. Inside of oil pan and oil pump strainer screen (2).
2. Clean sealing surface on upper oil pan, lower oil pan and lower crankcase. Remove oil, old sealant, and dust from sealing surface.

Scheme 18

Scheme 19

1. Disconnect negative cable at battery.
2. Drain engine oil.
3. Drain coolant «COOLANT DRAINING»(/suzuki/grand-vitara/i-2000-2006/remont/cooling-system-mechanical/#engine-cooling-system) .
4. Remove oil pan, oil pump strainer and timing chain cover. Refer to «OIL PAN AND OIL PUMP STRAINER REMOVAL AND INSTALLATION»(/suzuki/grand-vitara/i-2000-2006/remont/lubrication-system/#engine-lubrication-system) and «TIMING CHAIN COVER & FRONT OIL SEAL»(ref-159328-S03046697142003112600000) for H25 engine or «TIMING CHAIN COVER REMOVAL & INSTALLATION»(ref-159329-S35031340182005051200000) for H27 engine .
5. Loosen oil pump chain guide bolts. Refer to «OIL PUMP COMPONENTS»(/suzuki/grand-vitara/i-2000-2006/remont/lubrication-system/#engine-lubrication-system) .
6. Remove oil pump (1) from crankcase (2). CAUTION: Do not remove oil pump sprocket or bolt. Otherwise, oil pump sprocket and/or oil pump rotor shaft might be damaged.

Scheme 20

Scheme 21

1. Install oil pump to crankcase. Tightening torque Oil pump mounting bolt (short) (c): 27 N.m (2.7 kg-m, 19.5 lb-ft) Oil pump mounting bolt (long) (d): 27 N.m (2.7 kg-m, 19.5 lb-ft)
2. Hand-tighten oil pump chain guide bolts (2).
3. To take up slack of oil pump chain, push center of oil pump chain guide (1) with a force of 0.5 to 0.6 N (50 - 60 g, 0.11 - 0.13 lb) then tighten oil pump chain guide bolts (2) to specified torque. Tightening torque Oil pump chain guide bolt (e): 11 N.m (1.1 kg-m, 8.0 lb-ft)
4. Install timing chain cover, oil pump strainer and oil pan. Refer to «TIMING CHAIN COVER & FRONT OIL SEAL»(ref-159328-S03046697142003112600000) for H25 engine or «TIMING CHAIN COVER REMOVAL & INSTALLATION»(ref-159329-S35031340182005051200000) for H27 engine and «OIL PAN AND OIL PUMP STRAINER REMOVAL AND INSTALLATION»(/suzuki/grand-vitara/i-2000-2006/remont/lubrication-system/#engine-lubrication-system) .

Disassembly

Disassemble oil pump as shown in the figure. (Scheme 18)

Scheme 22

1. Wash, clean and then dry all disassembled parts.
2. Apply thin coat of engine oil to inner and outer rotors, and inside surfaces of oil pump case.
3. Assemble oil pump. After assembling oil pump check to be sure that rotor turns smoothly by hand. Tightening torque Oil pump bolt (a): 12 N.m (1.2 kg-m, 9.0 lb-ft)

Scheme 23

1. Check outer rotor, inner rotor and oil pump cases for excessive wear or damage.
2. Check relief valve for excessive wear or damage.
3. Measure free length and tension of oil relief spring. Spring (for oil pump) free length: 63.5 mm (2.5 in.) Spring (for oil pump) preload: 86.0 N for 52.0 mm (8.6 kg for 52.0 mm, 62.2 lb for 2.05 in.)

Scheme 24

1. Radial clearance Measure clearance of oil pump rotor and oil pump case using thickness gauge. Check radial clearance between outer rotor (2) and case (1), using thickness gauge (3). If clearance exceeds its limit, replace oil pump assembly. Radial clearance between oil pump outer rotor and oil pump case Limit: 0.19 mm (0.0075 in.)
2. Side clearance Using straightedge (5) and thickness gauge (4), measure side clearance. If clearance exceeds its limit, replace oil pump assembly. Oil pump side clearance Limit: 0.11 mm (0.0043 in.)

Scheme 25

Scheme 26

1. Disconnect negative cable at battery.
2. Drain engine oil.
3. Drain coolant «COOLANT DRAINING»(/suzuki/grand-vitara/i-2000-2006/remont/cooling-system-mechanical/#engine-cooling-system) .
4. Remove timing chain cover. Refer to «TIMING CHAIN COVER & FRONT OIL SEAL»(ref-159328-S03046697142003112600000) for H25 engine or «TIMING CHAIN COVER REMOVAL & INSTALLATION»(ref-159329-S35031340182005051200000) for H27 engine .
5. Remove LH bank 2nd timing chain. Refer to «LEFT (NO. 1) BANK 2ND TIMING CHAIN & CHAIN TENSIONER»(ref-159328-S02795338372003112600000) for H25 engine or «LH (NO. 1) BANK 2ND TIMING CHAIN & CHAIN TENSIONER REMOVAL»(ref-159329-S26080055292005051200000) for H27 engine .
6. Remove 1st timing chain. Refer to «1ST TIMING CHAIN & CHAIN TENSIONER»(ref-159328-S23862903582003112600000) for H25 engine or «1ST TIMING CHAIN & CHAIN TENSIONER REMOVAL»(ref-159329-S39038841062005051200000) for H27 engine .
7. Put match marks (3) to oil pump chain (1) and oil pump sprocket (2).
8. Remove oil pump chain guide.
9. Remove oil pump chain.
10. Remove oil pump drive sprocket.

Scheme 27

Scheme 28

Scheme 29

1. Install oil pump drive sprocket (2) as shown in the figure.
2. Install oil pump chain (1) by aligning match marks (3) on oil pump chain (1) and oil pump sprocket (2).
3. Tighten oil pump sprocket bolt (4) to specified torque. Tightening torque Oil pump sprocket bolt (a): 45 N.m (4.5 kg-m, 32.5 lb-ft)
4. Install oil pump chain guide (1) and hand-tighten oil pump chain guide bolts.
5. Install thickness gauge between center of chain guide (1) and oil pump chain (2). Thickness gauge specifications Thickness: 1.35 mm (0.053 in.) Width: 14 mm (0.55 in.)
6. To take up slack of oil pump chain, push oil pump chain guide with a force of 30 to 50 N (3.0 - 5.0 kg, 6.6 - 11.0 lb) as shown, and then tighten oil pump chain guide bolts to specified torque. Tightening torque Oil pump chain guide bolt (c): 11 N.m (1.1 kg-m, 8.0 lb-ft)
7. Install 1st timing chain. Refer to «1ST TIMING CHAIN & CHAIN TENSIONER»(ref-159328-S23862903582003112600000) for H25 engine or «1ST TIMING CHAIN & CHAIN TENSIONER INSTALLATION»(ref-159329-S42295491582005051200000) for H27 engine .
8. Install LH bank 2nd timing chain. Refer to «LEFT (NO. 1) BANK 2ND TIMING CHAIN & CHAIN TENSIONER»(ref-159328-S02795338372003112600000) for H25 engine or «LH (NO. 1) BANK 2ND TIMING CHAIN & CHAIN TENSIONER REMOVAL»(ref-159329-S13549968892005051200000) for H27 engine .
9. Install timing chain cover. Refer to «TIMING CHAIN COVER & FRONT OIL SEAL»(ref-159328-S03046697142003112600000) for H25 engine or «TIMING CHAIN COVER REMOVAL & INSTALLATION»(ref-159329-S35031340182005051200000) for H27 engine .
10. Install oil pan referring to «OIL PAN AND OIL PUMP STRAINER REMOVAL AND INSTALLATION»(/suzuki/grand-vitara/i-2000-2006/remont/lubrication-system/#engine-lubrication-system) .
11. Install front differential housing referring to «FRONT DIFFERENTIAL DISMOUNTING AND REMOUNTING»(/suzuki/grand-vitara/i-2000-2006/remont/differentials-drive-axles/#differentials) .
12. Install P/S system referring to «P/S GEAR BOX ASSEMBLY REMOVAL AND INSTALLATION»(/suzuki/grand-vitara/i-2000-2006/remont/manual-power-steering/#power-assisted-steering-system) .
13. Install cooling system referring to «COOLING FAN AND FAN CLUTCH REMOVAL AND INSTALLATION»(/suzuki/grand-vitara/i-2000-2006/remont/cooling-system-mechanical/#engine-cooling-system) and «RADIATOR REMOVAL AND INSTALLATION»(/suzuki/grand-vitara/i-2000-2006/remont/cooling-system-mechanical/#engine-cooling-system) .
14. Install intake manifold with throttle body. For H25 engine model, refer to «INTAKE MANIFOLD»(ref-159328-S26284738442003112600000) . For H27 engine model, refer to «THROTTLE BODY & INTAKE MANIFOLD REMOVAL & INSTALLATION»(ref-159329-S26781429642005051200000) .
15. Refill cooling system with coolant, front differential with gear oil, P/S system with specified fluid and engine with engine oil.
16. Check wheel alignment referring to «SPECIFICATIONS & PROCEDURES»(ref-161736) .
17. Verify that there is no fuel leakage, water leakage and oil leakage at each connection.

Oil Pump Chain Guide

Check shoe (1) for wear or damage.

Scheme 30

Oil Pump Drive Sprocket

Check teeth of sprocket for wear or damage.

Scheme 31

Oil Pump Sprocket

Check teeth of sprocket for wear or damage.

Scheme 32

Oil Pump Chain

Check oil pump chain for wear or damage.

Scheme 33

Tightening Torque Specifications

Torque Specifications

Scheme 34

Scheme 35

See also:
• P/S GEAR BOX ASSEMBLY REMOVAL AND INSTALLATION
• FRONT DIFFERENTIAL DISMOUNTING AND REMOUNTING
• COOLANT DRAINING
• OIL PAN AND OIL PUMP STRAINER REMOVAL AND INSTALLATION