Rocker Arms Clearance - Honda Prelude 1993 Service Manual

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7 . lf camshaft-to-holder oil clearance is out ot tolerance:
- And the camshaft has already been replaced, you
must replace the cylinder head.
- lt camshaft has not been replaced, tirst check total
runout with the camshaft supported on V-blocks.
Canshaft Total Runout:
Standard(N€w): O.O3 mm (0.0O1 in) max.
Srvice Limit: 0.06 mm (0.002 in)
- lf the total runout of the camshaft is within toler-
ance, replace the cylinder head.
- lf the total runout is out of tolerance, reDlace the
camshaft and recheck, lfthe oilclearance is stillout
ol tolerance, replace the cylinder head.
Measure cam lobe height.
Cam Lob€ Height:
lntake Standa.d: 38.526 mm (1.5168 in)
Erhaust Standard: 38.778 mm { 1 .5267 in)
Rocker Arms
Clearance
Measure both the intake rocker shafts and exhaust rocker
shaft.
Measure diameter ot the shaft at the tirst rocker
location.
Measure the inside diameter of the.ocker arm and
check tor out-of-round condition.
Rock€r Am-to-Shaft Cloarance:
Standdd(N€w)
lmak6:
O.O17-O.O5O mm
(0.OOO7-O.OO2O in)
O.O18-O.054 mm
{O.OOO7-O.0O21 in)
Exhaust:
Ssrvico Linit: 0.O8 mm
(O.0O3 in)
Inspect rocker arm
laca tor wear,
Repeat for all rockers. lf over limit, replace the rocker
shaft and all over-tolerance rocker arms.
Surface should be smooth.
Zero the gauge to the shaft diameter.
Inspect this area tor wear.
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