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Engine
FAN BELT
When correctly tensioned, a total deflection, under moderate hand pressure, of
Tension
+
in. (12 mm.) should be possible at the midway point of the longest belt run
between the pulleys.
Adjusting
To adjust the belt tension, slacken the securing bolts (l), and the adjusting link
Fig. 4 nut
(2), and move the alternator to the required position. Apply any leverage
necessary to drive end bracket (3), only and not to any other part; to avoid
damaging the end bracket the lever used should preferably be of wood or soft
metal. Tighten the bolts and re-check the belt tension. DO NOT OVERTENSION
as this will impose an excess loading on the drive bearings and stretch the belt.
VALVE ROCKER CLEARANCE
Checking
Remove the rocker cover and insert a .015 in. (.38 mm.) feeler gauge between
Fig.
5 the valve rocker arms and valve stems (inset). The gauge should be a sliding fit
when the engine is cold. Check each clearance in the following order:
Check No. 1 valve with No. 8 fully open. Check No. 8 valve with No. 1 fully open.
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Adjusting
Slacken the adjusting screw locknut in the opposite end of the rocker arm and
rotate the screw clockwise to reduce the clearance or anti-clockwise to increase it.
Retighten the locknut when the clearance is correct, holding the screw against
rotation with a screwdriver.
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