Suzuki: Engine K6A-YH6. Manual - part 20

7-34

REPAIR

7

Outer Rotor Side Clearance

See Figure 7-81.

Figure 7-81

1.

Place a straightedge (1) across the oil pump rotor 
bore. Use a feeler gauge (2) to measure the 
clearance between the straightedge and the outer 
rotor side surface. If measurement is beyond service 
limit, replace the oil pump assembly.

Oil Pump Outer Rotor Side Clearance Limit:
0.003—0.005 in. (0.076—0.127 mm)

Inner Rotor and Pump Case Clearance

See Figure 7-82.

Figure 7-82

1.

Using a micrometer, measure the outside diameter of 
the inner rotor shoulder (1).

2.

Measure the inside diameter of the oil pump bore 
hole (2). If measurements are not within service limit, 
replace oil pump assembly.

Inner Rotor and Pump Case Clearance: 
0.001—0.003 in. (0.025—0.076 mm)

TN0392

1

2

TN0394

1

2

REPAIR

7-35

7

Relief Valve Spring

See Figure 7-83.

Figure 7-83

1.

Use a veneer caliper to measure the free length of 
relief valve spring (1). If relief valve spring measures 
less than specification, replace the spring.

Oil Pump Relief Valve Spring Free Length: 2.063 in. 
(52.40 mm)

2.

Using a spring compression gauge (2), compress 
relief valve spring to specification and record the 
force reading. If force reading is less than 
specification, replace the spring.

Oil Pump Relief Valve Spring Tension at 1.516 in.
(38.5 mm) of Length: 17.3 lb-ft (23.45 N•m)

Required Tools

Veneer Caliper

Spring Compression Gauge

TN0558, 0559

1

2

7-36

REPAIR

7

Installation

See Figures 7-84 and 7-85.

Figure 7-84

1.

Using bushing, bearing, and seal driver (1), install 
new oil seal (2) into front cover (3).

Figure 7-85

NOTE

Install inner and outer rotor as previously marked.

2.

Install relief valve (11), spring (10), retainer (9), and 
circlip (8).

3.

Install inner rotor (4) and outer rotor (5).

4.

Install oil pump housing (6) using screws (7). Tighten 
to specification.

Oil Pump Housing Torque: 60 lb-in. (6.78 N•m)

Required Tools

Bushing, Bearing and Seal Driver (Suzuki PN 
09913-75520) or equivalent

TN0561

1

2

3

TN0557

4

5

6

7

8

11

10

9

REPAIR

7-37

7

7.8 Cylinder Block and Lower 
Crankcase

Knock Sensor

Removal and Installation

See Figure 7-86.

Figure 7-86

1.

Use a small screwdriver to depress internal tab (2) 
and release electrical connector (3) from bracket (1).

2.

Remove knock sensor (4) from cylinder block.

3.

Inspect and replace as needed.

Installation Notes

Install knock sensor by reversing the order of removal.

Tighten knock sensor to specification.

Knock Sensor Torque: 203 lb-in. (23 N•m)

Crankshaft Pulley

Removal and Installation

See Figure 7-87.

Figure 7-87

1.

Remove cap screw (1) and crankshaft pulley (2).

2.

Inspect and replace as needed.

Installation Notes

Install crankshaft pulley by reversing the order of 
removal.

Tighten crankshaft pulley cap screw to specification.

Crankshaft Pulley Cap Screw: 72 lb-ft (98 N•m)

TN0718

1

2

3

4

TN0721

2

1