Acura NSX 1997 Service Manual page 85

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• Do not rotate the camshaft during inspection.

• Remove the rocker arms and rocker shafts.

Put the camshafts, the camshaft holders and holder

plates on the cylinder head, and then tighten the

bolts to the specified torque.

NOTE: Apply clean engine oil to 8 mm bolt threads.

Specified torque:

8 mm x 1.25 mm bolts:

22 N-m (2.2 kgf-m, 16 Ibf-ft)

6 mm x 1.0 mm bolts:

9.8 N-m (1.0 kgf-m, 7.2 Ibf-ft)

CAMSHAFT HOLDER BOLTS TORQUE

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Seat the camshaft by pushing it toward the left end of

cylinder head.

Zero the dial indicator against the left end, then push

the camshaft back and forth, and read the end play.

Camshaft End Play:

Standard (New): 0.05 - 0.15 mm

(0.002 - 0.006 in)

Service Limit:

0.5 mm (0.02 in)

Remove the bolts, then remove the camshaft holders

from the cylinder head.

Lift the camshaft out of the cylinder head, wipe it

clean, then inspect the lift ramps. Replace the

camshaft if lobes are pitted, scored, or excessively

Clean the camshaft bearing surfaces in the cylin-

der head, then set the camshaft back in place.

Insert a plastigage strip across each journal.

Install the camshaft holders, and then tighten the

bolts to the specified torque as shown in the left

column on this page.

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