Flywheel
If ring gear is damaged, cracked or worn, replace flywheel.
If the surface contacting clutch disc is damaged, or excessively
worn, replace flywheel.
Check flywheel for face runout with dial gauge.
If runout exceeds its limit, replace flywheel.
Limit on runout: 0.2 mm (0.0078 in.)
Cylinder Block
Distortion of gasketed surface
Using straightedge and thickness gauge, check gasketed surface
for distortion and, if flatness exceeds its limit, correct it.
Honing or reboring cylinders
1) When any cylinder needs reboring, all other cylinders must also
be rebored at the same time.
2) Select oversized piston according to amount of cylinder wear.
3) Using micrometer, measure piston diameter.
“a”: 20 mm (0.79 in.)
4) Calculate cylinder bore diameter to be rebored.
D = A + B – C
D:Cylinder bore diameter to be rebored.
A: Piston diameter as measured.
B: Piston clearance = 0.025 – 0.045 mm
(0.0009 – 0.0017 in.)
C:Allowance for honing = 0.02 mm (0.0008 in.)
6A1-60
ENGINE MECHANICAL (F8D ENGINE)
Item
Limit
Flatness
0.05 mm
(0.0020 in.)
Size
Piston diameter
O/S 0.25
68.720 – 68.740 mm
(2.7055 – 2.7062 in.)
O/S 0.50
68.970 – 68.990 mm
(2.7154 – 2.7161 in.)
