Acura RSX Honda Integra. Manual — part 49
04
01
01
S6M6A00A14616700000MAAT00
K20A3 engine:
K20A2, K20Z1 engines:
Specified Torque
8 mm Bolts: 22 N·m (2.2 kgf·m, 16 lbf·ft)
6 mm Bolts: 12 N·m (1.2 kgf·m, 8.7 lbf·ft)
6 mm Bolts:
,
,
6-40
6-40
Cylinder Head
Rocker Arm and Shaft Inspection
(cont’d)
Camshaft Inspection
A
A
6. Inspect the rocker arm pistons (A). Push each
piston manually. If it does not move smoothly,
replace the rocker arm set.
NOTE: Apply new engine oil to the pistons when
reassembling.
7. Install the rocker arm assembly (see page 6-50).
NOTE: Do not rotate the camshaft during inspection.
1. Remove the rocker arm assembly (see page 6-35).
2. Put the rocker shaft holders, camshaft and
camshaft holders on the cylinder head, then tighten
the bolts to the specified torque.
NOTE: If the engine does not have bolt
, skip it
and continue the torque sequence.
01
02
−
−
−
−
−
−
Camshaft End Play
Standard (New): 0.05
0.20 mm
(0.002
0.008 in.)
Service Limit:
0.4 mm (0.02 in.)
Camshaft-to-Holder Oil Clearance
Standard (New):
No. 1 Journal:
0.030
0.069 mm
(0.001
0.003 in.)
No. 2, 3, 4, 5 Journals:
0.060
0.099 mm
(0.002
0.004 in.)
Service Limit:
0.15 mm (0.006 in.)
6-41
3. Seat the camshaft by pushing it away from the
camshaft pulley end of the cylinder head.
4. Zero the dial indicator against the end of the
camshaft, then push the camshaft back and forth
and read the end play. If the end play is beyond the
service limit, replace the cylinder head and recheck.
If it is still beyond the service limit, replace the
camshaft.
5. Unscrew the camshaft holder bolts two turns at a
time, in a crisscross pattern. Then remove the
camshaft holders from the cylinder head.
6. Lift the camshafts out of the cylinder head, wipe
them clean, then inspect the lift ramps. Replace the
camshaft if any lobes are pitted, scored, or
excessively worn.
7. Clean the camshaft journal surfaces in the cylinder
head, then set the camshafts back in place. Place a
plastigage strip across each journal.
8. Install the camshaft holders, then tighten the bolts
to the specified torque as shown in step 2.
9. Remove the camshaft holders. Measure the widest
part of plastigage on each journal.
• If the camshaft-to-holder clearance is within
limits, go to step 11.
• If the camshaft-to-holder clearance is beyond the
service limit and the camshaft has been replaced,
replace the cylinder head.
• If the camshaft-to-holder clearance is beyond the
service limit and the camshaft has not been
replaced, go to step 10.
(cont’d)
03
02
03
←
←
←
Camshaft Total Runout
Standard (New): 0.03 mm (0.001 in.) max.
Service Limit:
0.04 mm (0.002 in.)
Cam Lobe Height Standard (New):
K20A3 engine:
K20A2, K20Z1 engines:
6-42
Cylinder Head
Camshaft Inspection (cont’d)
INTAKE
SEC
PRI
C/C
INTAKE
EXHAUST
PRI
MID SEC
SEC
MID
PRI
C/C
C/C
10. Check the total runout with the camshaft supported
on V-blocks.
• If the total runout of the camshaft is within the
service limit, replace the cylinder head.
• If the total runout is beyond the service limit,
replace the camshaft and recheck the camshaft-
to-holder oil clearance. If the oil clearance is still
beyond the service limit, replace the cylinder
head.
11. Measure cam lobe height.
INTAKE
EXHAUST
K20A3
engine
PRI
33.925 mm
(1.3356 in.)
34.092 mm
(1.3422 in.)
SEC
29.638 mm
(1.1668 in.)
K20A2,
K20Z1
engines
PRI
32.791 mm
(1.2910 in.)
32.772 mm
(1.2902 in.)
MID
35.534 mm
(1.3990 in.)
34.768 mm
(1.3688 in.)
SEC
32.678 mm
(1.2865 in.)
32.661 mm
(1.2859 in.)
PRI: Primary
MID: Mid
SEC: Secondary
C/C: Cam Chain
01
01
02
03
S6M6A00A14680200000KAAT00
Special Tools Required
6-43
Valve, Spring, and Valve Seal Removal
B
A
07757-PJ1010A
Valve spring compressor attachment 07757-PJ1010A
Identify the valves and valve springs as they are
removed so that each item can be reinstalled in its
original position.
1. Remove the cylinder head (see page 6-31).
2. Using an appropriate-sized socket (A) and plastic
mallet (B), lightly tap the valve retainer to loosen
the valve cotters.
3. Install the valve spring compressor attachment and
valve spring compressor. Compress the spring and
remove the valve cotters.
4. Remove the valve spring compressor, valve spring
compressor attachment, spring retainer, and spring.
5. Install the valve guide seal remover.
6. Remove the valve seal.
7. Remove the valve spring seat and valve.
Нет комментариевНе стесняйтесь поделиться с нами вашим ценным мнением.
Текст