Kubota B1700 User Manual

B1700·B21 00·B2400 WSM, 11770
(8) Inlet and Exhaust Valves
B111F003
(9) Valve Timing
1 ENGINE
The inlet and exhaust valves (7), (6) and their
guides (6) are different from each other. Other parts,
such as valve springs (4), valve spring retainers (3),
valve spring collets (2), valve stem
seals (5), and valve
caps (1) are the same for both the inlet and exhaust
valves. All contact or sliding parts are quenched and
tempered
to resist wear.
(1) Valve Cap
(2) Valve Spring Retainer
(3) Valve Spring Collet
(4) Valve Spring
(5) Valve Stem
Seal
(6) Valve Guide
(7) Inlet Valve
(8) Exhaust Valve
\.0
B177F101
TDC
BDC
f.e
The valve opening and closing timing is extremely
important for effectively intaking air into the
cylinder and sufficiently exhaust gas. An appropriate
timing
can be obtained by aligning the alignment
marks on the crank gear and cam gear.
Inlet valve open (1.0)
0.24 rad. (14°) before T.D.C
Inlet valve close (I.C)
0.52 rad. (30°) after B.D.C.
Exhaust valve open (E.O)
0.96 rad. (55°) before B.D.C.
Exhaust valve close (E.C)
0.24 rad. (14°) after T.D.C.
1-M5
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Kubota B1700 Specifications

General

Brand	Kubota
Model	B1700
Category	Tractor
Language	English