Suzuki DF70A - Page 17

General Information: 0A-8
Service Data
Z9J0110107002
NOTE
These service data are subject to change without notice.
Powerhead
**Figures shown are guidelines only, not absolute service limits.
Cylinder Head / Camshaft
Item Unit
Data
DF70AT DF80AT DF90AT
Recommended operating range r/min 5 000 – 6 000 5 000 – 6 000 5 500 – 6 300
Idle speed r/min 600 ± 50 (in-gear: Approx. 600)
**Cylinder compression pressure
kPa
(kgf/cm
2
, psi.)
1 200 – 1 800 (12 – 18, 171 – 256)
**Cylinder compression pressure max.
difference between cylinders
kPa
(kgf/cm
2
, psi.)
100 (1.0, 14)
**Engine oil pressure
kPa
(kgf/cm
2
, psi.)
400 – 600 (4.0 – 6.0, 57 – 85) at 3 000 r/min
(at normal operating temp.)
Engine oil
• API classification: SG, SH, SJ, SL, SM
or NMMA FC-W classification: SG, SH, SJ, SL, SM
• Viscosity rating: SAE 10W-40 or NMMA FC-W 10W-40
Engine oil amounts L (US/lpm. qt)
4.0 (4.2 / 3.5): Oil change only
4.3 (4.5 / 3.8): Oil filter change
Thermostat operating temperature °C (°F) 58 – 62 (136 – 144)
Item Unit
Data
DF70AT DF80AT DF90AT
Cylinder head distortion Limit mm (in.) 0.03 (0.001)
Manifold seating faces distortion Limit mm (in.) 0.10 (0.004)
Cam height
IN
std. mm (in.)
38.620 – 38.780
(1.5205 – 1.5268)
39.620 – 39.780
(1.5598 – 1.5661)
41.120 – 41.280
(1.6189 – 1.6252)
Limit mm (in.) 38.520 (1.5165) 39.520 (1.5559) 41.020 (1.6150)
EX
std. mm (in.)
40.920 – 41.080
(1.6110 – 1.6173)
Limit mm (in.) 40.820 (1.6071)
Camshaft journal oil
clearance
Top,
2nd,
3rd,
4th,
5th
std. mm (in.) 0.045 – 0.087 (0.0018 – 0.0034)
Limit mm (in.) 0.120 (0.0047)
Camshaft journal (housing)
inside diameter
Top,
2nd,
3rd,
4th
std. mm (in.) 23.000 – 23.021 (0.9055 – 0.9063)
Limit mm (in.) —
5th
std. mm (in.) 26.000 – 26.021 (1.0236 – 1.0244)
Limit mm (in.) —
Camshaft journal outside
diameter
Top,
2nd,
3rd,
4th
std. mm (in.) 22.934 – 22.955 (0.9029 – 0.9037)
Limit mm (in.) —
5th
std. mm (in.) 25.936 – 25.957 (1.0211 – 1.0291)
Limit mm (in.) —
Camshaft runout Limit mm (in.) 0.10 (0.004)
Cylinder head bore to tappet
clearance
std. mm (in.) 0.025 – 0.062 (1.0010 – 1.0024)
Limit mm (in.) 0.150 (0.0059)
Tappet outer diameter std. mm (in.) 27.959 – 27.975 (1.1007 – 1.1014)
Cylinder head tappet bore std. mm (in.) 28.000 – 28.021 (1.1024 – 1.1032)
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