Nanni N4.40 User Manual

ENGINE
03-M-E3B, 03-M-DI-E3B, 03-M-E3BG, WSM
1-S52
(Continued)
IMPORTANT
• After you replace an item below, you have to select a
cylinder head gasket.
–Piston
– Piston pin
– Small end bushing
– Connecting rod
– Crankpin bearings
To select the cylinder head gasket
1. Measure the protrusion or recess of the piston head from the
level of crankcase cylinder face at 4 points per each piston with
a dial gauge.
2. Get the average of the measurements.
3. Use the table below to select an applicable cylinder head
gasket.
M00000003ENS0073US1
Tappets
1. Remove the tappets (1) from the crankcase.
(When reassembling)
• Before you install the tappets, apply a thin layer of engine oil
around them.
• Examine the contact between tappets and cams that it turns
correctly. If it is defective, replace the tappets.
IMPORTANT
• Do not change the combination of tappet and tappet guide.
M00000003ENS0074US1
Gasket Dimension
(Number)
Piston Protrusion
D1503-M, D1703-M,
D1803-M, V2003-M,
V2203-M, V2403-M,
V2403-M-T,
D1703-M-BG,
V2003-M-BG,
V2003-M-T-BG,
V2203-M-BG,
V2403-M-BG
D1803-M-DI,
V2403-M-DI,
V2403-M-DI-T
15
0.500 to 0.540 mm
0.0197 to 0.0212 in.
0.475 to 0.525 mm
0.0187 to 0.0206 in.
20
0.550 to 0.590 mm
0.0217 to 0.0232 in.
0.525 to 0.575 mm
0.0206 to 0.0227 in.
25
0.600 to 0.640 mm
0.0237 to 0.0251 in.
0.575 to 0.625 mm
0.0227 to 0.0246 in.
30
0.650 to 0.690 mm
0.0256 to 0.0271 in.
0.625 to 0.675 mm
0.0246 to 0.0266 in.
35
0.700 to 0.740 mm
0.0276 to 0.0291 in.
0.675 to 0.725 mm
0.0266 to 0.0285 in.
(6) Points of Measurement [A] D1503-M, D1703-M, D1803-M,
V2003-M, V2203-M, V2403-M,
V2403-M-T, D1703-M-BG,
V2003-M-BG, V2003-M-T-BG,
V2203-M-BG, V2403-M-BG
[B] D1803-M-DI, V2403-M-DI,
V2403-M-DI-T
(1) Tappet
KiSC issued 06, 2009 A

Nanni N4.40 Specifications

General

Brand	Nanni
Model	N4.40
Category	Engine
Language	English