Acura CSX. Instruction — page 68

10

*02

11

Balancer Shaft Inspection

Balancer Shaft End Play
Front Balancer Shaft:
Standard (New): 0.063

0.108 mm

(0.0025

0.0043 in.)

Service Limit:

0.14 mm (0.0055 in.)

Rear Balancer Shaft:
Standard (New): 0.063

0.108 mm

(0.0025

0.0043 in.)

Service Limit:

0.14 mm (0.0055 in.)

8-18

Engine Lubrication

A

B

C

D

1. Seat the balancer shaft by pushing it away from the

oil pump sprocket end of the oil pump.

2. Zero the dial indicator against the end of the

balancer shaft, then push the balancer shaft back
and forth and read the end play.

3. Remove the pump housing.

4. Remove the baffle plate (A) and the upper balancer

shaft holder (with bearings) (B), then remove the
front balancer shaft (C) and the rear balancer
shaft (D).

12

13

14

15

Bearing Inner Diameter
Front:
Standard (New): 20.000

20.020 mm

(0.7874

0.7882 in.)

Service Limit:

20.03 mm (0.789 in.)

Rear:
Standard (New): 24.000

24.020 mm

(0.9449

0.9457 in.)

Service Limit:

24.03 mm (0.946 in.)

Front

Rear

Journal Diameter
Front:
Standard (New): 19.938

19.950 mm

(0.7850

0.7854 in.)

Service Limit:

19.92 mm (0.784 in.)

Rear:
Standard (New): 23.938

23.950 mm

(0.9424

0.9429 in.)

Service Limit:

23.92 mm (0.942 in.)

Front

Rear

8-19

5. Measure the inner diameter of the No. 1 bearing for

the front balancer shaft hole and the rear balancer
shaft hole.

6. Measure the diameters of the No. 1 journals on the

front balancer shaft and the rear balancer shaft.

*03

16

17

No. 2 Journal Oil Clearance
Standard (New): 0.060

0.120 mm

(0.0024

0.0047 in.)

Service Limit:

0.15 mm (0.006 in.)

8-20

Engine Lubrication

6 x 1.0 mm
12 N·m
(1.2 kgf·m, 8.7 lbf·ft)

K20Z2 engine:
8 x 1.25 mm
27 N·m
(2.8 kgf·m, 20 lbf·ft)
K20Z3 engine:
8 x 1.25 mm
28 N·m
(2.9 kgf·m, 21 lbf·ft)

16 °

7. Clean both balancer shaft No. 2 journals and the

bearing halves with a clean shop towel, then install
the balancer shafts into the lower balancer shaft
holder.

8. Place one strip of plastigage across each No. 2

journal.

9. Reinstall the bearings and the upper balancer shaft

holder, then tighten the bolts.

NOTE:

• Do not rotate the balancer shafts during

inspection.

• After torquing, tighten the three 8 mm bolts extra

16 ° (K20Z3 engine).

10. Remove the upper balancer shaft holder and the

bearings again, and measure the widest part with
the plastigage. If the balancer shaft No. 2 journal oil
clearance is out-of-tolerance, install new bearings,
and recheck. If it is still out-of-tolerance, replace the
balancer shafts.

11. Align the punch mark on the rear balancer shaft in

the center of the two punch marks on the front
balancer shaft, then install the balancer shafts on
the lower balancer shaft holder.

*04

19

20

21

Oil Pump Installation

8-21

B

C

6 x 1.0 mm
12 N·m
(1.2 kgf·m, 8.7 lbf·ft)

A
K20Z2 engine:
8 x 1.25 mm
27 N·m
(2.8 kgf·m, 20 lbf·ft)
K20Z3 engine:
8 x 1.25 mm
28 N·m
(2.9 kgf·m, 21 lbf·ft)

16 °

6 x 1.0 mm
12 N·m
(1.2 kgf·m, 8.7 lbf·ft)

A

B

B

A

12. Apply new engine oil to the threads of the 8 mm

bolts (A).

NOTE: After torquing, tighten the three 8 mm bolts
extra 16 ° (K20Z3 engine).

13. Install the upper balancer shaft holder (B) and the

baffle plate (C).

14. Install the pump housing.

1. Make sure the No. 1 piston top dead center (TDC)

mark (A) lines up with the pointer (B).

2. Align the dowel pin (A) on the rear balancer shaft

with the mark (B) on the oil pump.

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