Removing Camshaft and Tappets in V8 Engines 35-42 During Overhaul Process
ENGINE
OVERHAUL
33
CAMSHAFT AND TAPPETS
Camshaft end-float - check
NOTE: this check is only applicable to
camshafts fitted with thrust plate.
1. Remove rocker shaft assemblies.
2. Remove push rods and store in fitted order.
3. Remove timing chain and gears.
4. Temporarily fit camshaft gear bolt.
5. Attach a suitable DTI to front of cylinder block
with stylus of gauge contacting end of
camshaft.
6. Push camshaft rearwards and zero gauge.
7. Using camshaft gear bolt, pull camshaft
forwards and note end-float reading on gauge.
End-float = 0.05 to 0.35 mm (0.002 to 0.014 in)
8. if end-float is incorrect, fit a new thrust plate
and re-check. If end-float is still incorrect, a
new camshaft must be fitted.
Camshaft and tappets - remove
1. Remove tappets and retain with their
respective push rods.
CAUTION: Store tappets upright to
prevent oil loss.
NOTE: If tappets cannot be removed due
to damaged camshaft contact area,
proceed as follows:
2. Lift tappets in pairs to the point where
damaged face is about to enter tappet bore
and fit rubber bands to retain tappets. Repeat
until all tappets are retained clear of camshaft
lobes. The tappets can then be withdrawn out
the bottom of their bores when the sump and
camshaft are removed.
