Toyota 1HD-FT Repair Manual page 66

ENGINE - ENGINE MECHANICAL
EG·53
Plastigage
'4
6 10 9 t 13
t 5
t.
t
t
'11
' s
c.
Inspect camshaft journals
Using a micrometer. measure the journal diameter.
Journal diameter:
No.1
34.969 - 34.985
mm
(1.3767 - , .3774 In.)
Oth.,.
27.986 - 27.998 mm (1.1018 - 1.1023 in.)
If the journal diameter is not as specified. check the oil
clearance.
D. Inspect camshaft bearings
Check the bearings for flaking and scoring.
If the bearings are damaged. replace the bearing caps
and cylinder head as a set.
E. Inspect camshaft journal oil clearance
(a) Clean the bearing caps and camshaft journals.
(b) Place the camshaft on the cylinder head.
(e) Lay a strip of Plastigage across each of the camshaft
journals.
(d) Remove the 7 bearing caps from the valve rocker
shaft. (See item E above)
(e) Install the 7 bearing caps with the 14 bolts. Uniformly
tighten the bolts in several passes, in the sequence
shown.
Torque: 25 N·m (250 kgf·cm, 18 ft.lbfj
NOTICE: Do not turn the camshaft.
(f) Uniformly loosen and remove the 14 bolts in several
passes, in the sequence shown.
(g) Remove the 7 bearing caps.