2006 ACURA CSX oil

Î

(#'


 )
7-217-21
Piston Ring Replacement
D C
F
E
B
A B
A
4. Assemble the piston (A) and the connecting rod (B)with the arrow (C) and the embossed mark (D) on
the same side. Install the piston pin (E).
5. Install the remaining snap ring (F).
6. Turn the snap rings in the ring grooves until the end gaps are positioned at the bottom of the piston. 1. Remove the piston from the engine block (see page
7-13).
2. Using a ring expander (A), remove the old piston rings (B).
3. Clean all ring grooves thoroughly with a squared- off broken ring or ring groove cleaner with a blade
to fit the piston grooves.
The top and 2nd ring grooves are 1.2 mm (0.05 in.)
wide. The oil ring groove is 2.0 mm (0.08 in.) wide.
File down a blade if necessary.
Donotuseawirebrushtocleantheringgrooves,
or cut the ring grooves deeper with the cleaning
tools.
NOTE: If the piston is to be separated from the
connecting rod, do not install new rings yet.
(cont’d)
This illustration shows K20Z2 engine.
08/08/21 14:33:06 61SNR030_070_0021
ProCarManuals.com
DYNOMITE -2009-

µ
µ
 Î
µµ
µµ
µ µ
µ µ
µ µ
Piston Ring End-Gap
Top Ring:
Standard (New): 0.20 0.35 mm
(0.008 0.014 in.)
Service Limit: 0.60 mm (0.024 in.)
Second Ring:
K20Z2 engine:
Standard (New): 0.40 0.55 mm (0.016 0.022 in.)
Service Limit: 0.70 mm (0.028 in.)
K20Z3 engine:
Standard (New): 0.50 0.65 mm (0.020 0.026 in.)
Service Limit: 0.75 mm (0.030 in.)
Oil Ring:
Standard (New): 0.20 0.70 mm (0.008 0.028 in.)
Service Limit: 0.80 mm (0.031 in.)
7-22 Engine Block
Piston Ring Replacement (cont’d)
A
B 15 20 mm (0.6 0.8 in.) A
B
K20Z2 engine:
A
B
K20Z3 engine:
BTop Ring (Standard):
A: 3.1 mm (0.12 in.)
B: 1.2 mm (0.05 in.)
Second Ring (Standard):
A: 3.4 mm (0.13 in.)
B: 1.2 mm (0.05 in.)
Piston Ring Dimensions
A A
BC
C
4. Using a piston that has its rings removed, push a
new ring (A) into the cylinder bore 15 20 mm
(0.6 0.8 in.) from the bottom.
5. Measure the piston ring end-gap (B) with a feeler gauge:
 If the gap is too small, check to see if you have the proper rings for your engine.
 If the gap is too large, recheck the cylinder bore diameter against the wear limits (see page 7-16).
If the bore is beyond the service limit, the engine
block must be rebored. 6. Install the top ring and the second ring as shown.
The top ring (A) has a 1R mark, and the second ring
(B) has a 2R mark. The manufacturing marks (C)
must be facing upward.
08/08/21 14:33:07 61SNR030_070_0022
ProCarManuals.com
DYNOMITE -2009-


Î

(#'
 )
µ
µ
µ µ
µ µ
µ µ
Top Ring Clearance
K20Z2 engine:
Standard (New): 0.035 0.060 mm
(0.0014 0.0024 in.)
Service Limit: 0.13 mm (0.005 in.)
K20Z3 engine:
Standard (New): 0.045 0.070 mm (0.0018 0.0028 in.)
Service Limit: 0.13 mm (0.005 in.)
Second Ring Clearance
K20Z2 engine:
Standard (New): 0.030 0.055 mm (0.0012 0.0022 in.)
Service Limit: 0.13 mm (0.005 in.)
K20Z3 engine:
Standard (New): 0.040 0.065 mm (0.0016 0.0026 in.)
Service Limit: 0.13 mm (0.005 in.)
If the Crankshaft is Already Installed
7-237-23
Piston Installation
OIL RING GAP About 90 °
SECOND RING GAP
PISTON PIN OIL RING GAPAbout 45 °
TOP RING GAP and
SPACER RING GAP A
A
B
7. After installing a new set of rings, measure the
ring-to-groove clearances:
8. Rotate the rings in their grooves to make sure they do not bind.
9. Position the ring end gaps as shown: 1. Set the crankshaft to bottom dead center (BDC) for
each cylinder as its piston is installed.
2. Remove the connecting rod caps, then install the ring compressor. Check that the bearing is securely
in place.
3. Apply new engine oil to the piston, inside of the ring compressor, and the cylinder bore, then attach
the ring compressor to the piston/connecting rod
assembly.
4. Position the mark (A) to face the cam chain side of the engine block.
5. Position the piston/connecting rod assembly in the cylinder, and tap it in using the wooden handle of a
hammer (A).
Push down on the ring compressor (B) to prevent
the rings from expanding before entering the
cylinder bore.
6. Stop after the ring compressor pops free, and check the connecting rod-to-rod journal alignment
before pushing the piston into place.
(cont’d)
This illustration shows K20Z2 engine.
08/08/21 14:33:08 61SNR030_070_0023
ProCarManuals.com
DYNOMITE -2009-


Î

(#'
 )
µ
µ
µ µ
µ µ
µ µ
Top Ring Clearance
K20Z2 engine:
Standard (New): 0.035 0.060 mm
(0.0014 0.0024 in.)
Service Limit: 0.13 mm (0.005 in.)
K20Z3 engine:
Standard (New): 0.045 0.070 mm (0.0018 0.0028 in.)
Service Limit: 0.13 mm (0.005 in.)
Second Ring Clearance
K20Z2 engine:
Standard (New): 0.030 0.055 mm (0.0012 0.0022 in.)
Service Limit: 0.13 mm (0.005 in.)
K20Z3 engine:
Standard (New): 0.040 0.065 mm (0.0016 0.0026 in.)
Service Limit: 0.13 mm (0.005 in.)
If the Crankshaft is Already Installed
7-237-23
Piston Installation
OIL RING GAP About 90 °
SECOND RING GAP
PISTON PIN OIL RING GAPAbout 45 °
TOP RING GAP and
SPACER RING GAP A
A
B
7. After installing a new set of rings, measure the
ring-to-groove clearances:
8. Rotate the rings in their grooves to make sure they do not bind.
9. Position the ring end gaps as shown: 1. Set the crankshaft to bottom dead center (BDC) for
each cylinder as its piston is installed.
2. Remove the connecting rod caps, then install the ring compressor. Check that the bearing is securely
in place.
3. Apply new engine oil to the piston, inside of the ring compressor, and the cylinder bore, then attach
the ring compressor to the piston/connecting rod
assembly.
4. Position the mark (A) to face the cam chain side of the engine block.
5. Position the piston/connecting rod assembly in the cylinder, and tap it in using the wooden handle of a
hammer (A).
Push down on the ring compressor (B) to prevent
the rings from expanding before entering the
cylinder bore.
6. Stop after the ring compressor pops free, and check the connecting rod-to-rod journal alignment
before pushing the piston into place.
(cont’d)
This illustration shows K20Z2 engine.
08/08/21 14:33:08 61SNR030_070_0023
ProCarManuals.com
DYNOMITE -2009-

Î

If the Crankshaft is Not Installed
7-24Engine Block
Piston Installation (cont’d)
90 °
A
A
B
7. Check the connecting rod bearing clearance with
plastigage (see page 7-8).
8. Inspect the connecting rod bolts (see page 7-25).
9. Install the rod caps with bearings. Tighten the bolts to 20 N·m (2.0 kgf·m, 14 lbf·ft) (K20Z2 engine) or
29 N·m (3.0 kgf·m, 22 lbf·ft) (K20Z3 engine).
NOTE: Apply new engine oil to the bolt threads and
flanges.
10. Tighten the connecting rod bolts an additional 90 °.
NOTE: Remove the connecting rod bolt if you
tightened it beyond the specified angle, and go
back to step 8 of the procedure. Do not loosen it
back to the specified angle. 1. Remove the connecting rod caps, then install the
ring compressor, and check that the bearing is
securely in place.
2. Apply new engine oil to the piston, inside of the ring compressor, and the cylinder bore, then attach
the ring compressor to the piston/connecting rod
assembly.
3. Position the mark (A) to face the cam chain side of the engine block.
4. Position the piston/connecting rod assembly in the cylinder, and tap it in using the wooden handle of a
hammer (A).
Push down on the ring compressor (B) to prevent
the rings from expanding before entering the
cylinder bore.
5. Position all pistons at top dead center (TDC).
This illustration shows K20Z2 engine.
08/08/21 14:33:08 61SNR030_070_0024
ProCarManuals.com
DYNOMITE -2009-


(#'


") 
(#'

 )
µ
µµ
Point A Point B = Difference in Diameter
Difference in Diameter
Specification: 0 0.1 mm (0 0.004 in.) Special Tools Required
7-257-25
Connecting Rod Bolt Inspection Crankshaft Installation
20 mm
(0.79 in.)
35 mm
(1.38 in.)
B A
07746-0010700 07749-0010000
1. Measure the diameter of each connecting rod bolt
at point A and point B.
2. Calculate the difference in diameter between point A and point B.
3. If the difference in diameter is out of specification, replace the connecting rod bolt.  Driver 07749-0010000
 Attachment, 24 x 26 mm 07746-0010700
 Oil seal driver attachment 96 07ZAD-PNAA100
1. M/T model: Install the crankshaft end bushing when replacing the crankshaft.
Using the driver and the attachment, 24 x 26 mm
drive in the crankshaft end bushing until the driver
and the attachment bottom against the crankshaft.
2. Check the connecting rod bearing clearance with plastigage (see page 7-8).
3. Check the main bearing clearance with plastigage (see page 7-6).
(cont’d)
08/08/21 14:33:09 61SNR030_070_0025
ProCarManuals.com
DYNOMITE -2009-



7-26Engine Block
Crankshaft Installation (cont’d)
B
A
90 °
4. Install the bearing halves in the engine block and the connecting rods.
5. Apply new engine oil to the main bearings and the rod bearings.
6. Hold the crankshaft so rod journal No. 2 and rod journal No. 3 are straight up, then lower the
crankshaft into the engine block.
7. Apply new engine oil to the thrust washer surfaces. Install the thrust washers (A) in the No. 4 journal of
the engine block.
8. Inspect the connecting rod bolts (see page 7-25).
9. Apply new engine oil to the threads of the connecting rod bolts.
10. Seat the rod journals into connecting rod No. 1 and connecting rod No. 4. Line up the mark (B) on the
connecting rod and the cap, then install the caps
and the bolts finger-tight.
11. Rotate the crankshaft clockwise, and seat the journals into connecting rod No. 2 and connecting
rod No. 3. Line up the mark on the connecting rod
and the cap, then install the caps and the bolts
finger-tight. 12. Tighten the connecting rod bolts to 20 N·m
(2.0 kgf·m, 14 lbf·ft) (K20Z2 engine) or 29 N·m
(3.0 kgf·m, 22 lbf·ft) (K20Z3 engine).
13. Tighten the connecting rod bolts an additional 90 °. NOTE: Remove the connecting rod bolt if you
tightened it beyond the specified angle, and go
back to step 8 of the procedure. Do not loosen it
back to the specified angle.
14. Remove all of the old liquid gasket from the lower block mating surfaces, the bolts, and the bolt holes.
15. Clean, and dry the lower block mating surfaces.
16. Apply liquid gasket, P/N 08717-0004, 08718-0001, 08718-0003, or 08718-0009, evenly to the engine
block mating surface of the lower block, and to the
inside edge of the threaded bolt holes. Install the
component within 5 minutes of applying the liquid
gasket.
NOTE: If you apply liquid gasket P/N 08718-0012, the component must be install within 4 minutes.
 If too much time has passed after applying the liquid gasket, remove the old liquid gasket and
residue, then reapply new liquid gasket.
Apply liquid gasket
along the broken line.
08/08/21 14:33:09 61SNR030_070_0026
ProCarManuals.com
DYNOMITE -2009-




7-27
56 °
07ZAD-PNAA10007749-0010000
17. Install the main bearings, then put the lower block
on the engine block.
18. Apply new engine oil to the threads of the bearing cap bolts.
19. Tighten the bearing cap bolts, in sequence, to 29 N·m (3.0 kgf·m, 22 lbf·ft).
20. Tighten the bearing cap bolts an additional 56 °. 21. Tighten the 8 mm bolts, in sequence, to 22 N·m
(2.2 kgf·m, 16 lbf·ft).
22. Apply a light coat of new engine oil around the crankshaft oil seal.
23. Apply a light coat of new engine oil to the crankshaft and the lip of the crankshaft oil seal.
24. Use the driver and the oil seal driver attachment 96 to drive a new oil seal squarely into the engine
block to the specified installed height.
(cont’d)
08/08/21 14:33:10 61SNR030_070_0027
ProCarManuals.com
DYNOMITE -2009-