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24
N. ENGINE
~
12. Remove the point cover by loosening off the 6mm screws.
13. Remove the left caro follower shaft lock nut.
14. Loosen off the base plate locking screws and remove the
contact breaker from the base plate.
15. Loosen off the bolt and remove the spark advancer from
the camshaft.
16. Remove the screws that secure the point base to the
cylinder head; rempve the point base.
17. Take out the exhaust camshaft.
Fig. 4- 7
(1) Base plate locking
screw
(4) Spark advancer
(2) Base plate
bolt
(3) Caro follower shaft lock nut
(5) Point base
18. Withdraw the caro follower shafts from the cylinder head
and remove the caro followers.
Fig. 4-8
(1) Caro follower shaft
(2) Caro follower
19. Loosen off the torsion bar holder locking bolts.
20. Using special tool "Valve Lifter" (Too1 No. 07973-2830001),
force the torsion bar so as to relieve the load from the
ho1der knock pin and then withdraw the torsion bar
as sembly from the cy1inder head.
Take out the outer armo
NOTE:
It is absolutely essential that the torsion bar assemblies afe
noi mixed, the diagonally opposite assemblies afe similar.
Upon removal piace each assembly in a container marked
with its location. If bars get mixed, replace with new ones
rather than take the risk of bars breaking. The two types
of bars twist in opposite directions.
Fig. 4-9
(I) Torsion bar holder
(2) Valve lifter
21. Remove the valve cotters, valve spring retainer and valve.
Inspection
1. Measure the outside diameter of each camshaft journal.
Standard value: 21.967-21.980mm (O.8648':'-O.8654-in.)
Senice limit:
21.92mm (O.8622-in.)
2. Measure the height of each cam.
Standard value:
Service limit:
Intake:
4.688-4.728 mm
4.65 mm
(O.1846-0.1853-in.) (0.1 830-in.)
Exhaust: 4.688-4.728 mm
4.65 mm
(O.1846-0.1853-in.) (0.183o.in.)
Fig. 4-10
(I) Valve cotter
(2) Valve spring retainer
(3) Valve
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