Acura RL (1996-2004 year). Manual — part 339
2. Apply liquid gasket to the head mating surfaces of the
No. 1 and the No. 5 camshaft holders. Apply liquid
gasket to the shaded areas.
No. 5
No. 1
3. Tighten each bolt 2 turns at a time in the sequence
shown below to ensure that the rockers do not bind
on the valves.
Specified torque:
8 mm bolts: 22 N-m (2.2 kgf-m, 16 Ibf-ft)
6 mm bolts: 12 N-m (1.2 kgf-m, 8.7 Ibf-ft)
8 mm bolts:
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Cylinder Heads
Installation
Install the cylinder heads in the reverse order of removal.
NOTE:
Always use new cylinder head gaskets.
Cylinder heads and cylinder block surface must be
clean.
Turn the camshafts so the pulley locating pin holes
are at the top.
Turn the crankshaft so the No. 1 piston is at TDC (see
).
Clean the oil control orifices before installing.
Do not use the upper and lower covers to store
removed items.
Clean the upper and lower covers before installation.
1. Install the cylinder head dowel pins.
2. Install the oil control orifices and cylinder head gas-
kets.
RIGHT CYLINDER
HEAD GASKET
("R" MARK)
OIL CONTROL
ORIFICES
Remove with 6 x 1.0 mm
bolt and clean.
OIL CONTROL
ORIFICE
Clean.
O-RINGS
Replace.
DOWEL
PINS
LEFT CYLINDER
HEAD GASKET
Replace.
3. Apply clean engine oil to the threads of the cylinder
head bolts.
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Cylinder Heads
Installation (cont'd)
4. Install the cylinder heads on the cylinder block.
5. Tighten the cylinder head bolts sequentially in 2 or
3 steps.
Specified Torque:
76 N-m (7.8 kgf-m, 56 Ibf-ft)
NOTE:
We recommend using a beam-type torque wrench.
When using a preset-type torque wrench, be sure
to tighten slowly and not to overtighten.
If a bolt makes any noise while you are torquing
it, loosen the bolt and retighten it.
CYLINDER HEAD BOLTS TORQUE SEQUENCE
CYLINDER HEAD BOLTS
Apply engine oil to the bolt
threads.
6. Install the head cover gasket in the groove of the
cylinder head cover. Seat the recesses for the cam-
shaft first, then work it into the groove around the
outside edges.
NOTE:
Before installing the cylinder head cover gasket,
thoroughly clean the seal and the groove.
When installing, make sure the head cover gasket
is seated securely in the corners of the recesses
with no gap.
CORNERS OF
THE RECESS
HEAD COVER
GASKET
Clean.
CORNERS OF
THE RECESS
CYLINDER
HEAD COVER
7. Apply liquid gasket to the head cover gasket at the
four corners of the recesses.
NOTE:
Use liquid gasket, Part No. 08718 - 0001 or 08718
- 0003.
Check that the mating surfaces are clean and dry
before applying liquid gasket.
Do not install the parts if five minutes or more have
elapsed since applying liquid gasket. Instead, reap-
ply liquid gasket after removing old residue.
After assembly, wait at least 30 minutes before
filling the engine with oil.
Apply liquid gasket to
the shaded areas.
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8. When installing the cylinder head cover, hold the
head cover gasket in the groove by placing your fin-
gers on the camshaft holder contacting surfaces
(top of the semicircles).
Once the cylinder head cover is on the cylinder head,
slide the cover slightly back and forth to seat the
head cover gasket.
NOTE:
Before installing the cylinder head cover, clean
the cylinder head contacting surfaces with a
shop towel.
Do not touch the parts where liquid gasket was
applied.
Replace the washer when damaged or deterio-
rated.
WASHER
CYLINDER
HEAD COVER
9. Tighten the nuts in 2 or 3 steps. In the final step, tight-
en all nuts, in sequence, to 12 N-m (1.2 kgf-m,
8.7 Ibf-ft).
NOTE: After assembly, wait at least 30 minutes
before filling the engine with oil.
10. Install the left and right back covers, then install the
left and right camshaft pulleys.
LEFT
CAMSHAFT PULLEY
BACK COVER
8 x 1.25 mm
31 N-m (3.2 kgf-m,
23 Ibf-ft)
RIGHT
CAMSHAFT PULLEY
6 x 1.0 mm
12 N-m (1.2 kgf-m,
8.7 Ibf-ft)
8 x 1.25 mm
31 N-m (3.2 kgf-m,
23 Ibf-ft)
BACK COVER
11. Install the timing belt and balancer belt (see page
).
6 x 1.0 mm
12 N-m (1.2 kgf-m,
8.7 Ibf-ft)
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