85
Unit:mm(in.)
Item Standard Limit
Lobe height 35.72 34.72
of camshaft (1.4063) (1.3669)
2.Fuel injection pump camshaft
Measure the lobe height and base circle as
shown in the illustration. Subtract the base
circle from the height to find the lobe life.
If the lobe lift exceeds the limit, replace the
camshaft.
Unit:mm(in.)
Item Standard Limit
Lobe height of
fuel injection 44(1.73) 43(1.69)
pump camshaft.
3.Tappets
(1)Cam contact face
Check the cam contact face of each tappet for
abnormal wear. Replace the tappet if the face
is defective.
(2)Clearance between tappet and cylinder
block
Measure the diameter of the tappet and the
bore in the cylinder block for the tappet to
find the clearance. If the clearance exceeds the
limit, replace the tappet.
Unit:mm(in.)
Item Standard
Clearance between 0.15(0.0059)
tappet and cylinder block
4.Idler gear
(1)Clearance between idler gear and shaft
measure the bore in the idler gear for the
shaft and the diameter of the shaft to find the
clearance. If the clearance exceeds the limit,
replace the gear or shaft whichever is badly
worn.
Unit:mm(in.)
Item Standard Limit
Clearance between 0.03 to 0.0 0.20
idler gear and shaft (0.0012 to 0.0028) (0.0079)