CAMSHAFT CONSTRUCTION [LF, L3]
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• A cast iron, highly rigid 5-axis hole camshaft has been adopted to insure higher reliability.
• Camshaft endplay is regulated at the rear of the No.1 journal.
• Lubricating oil is supplied through the oil supply hole at each journal. Additionally the cam nose part is chill cast to improve abrasion resistance, and the width of cam hill part is shortened to reduce weight.
• There is no positioning pin or key slot for the camshaft sprocket at the edge of the camshaft. A lubrication process has been adopted for the camshaft sprocket tightening bolt to prevent instability in the axis during tightening.
• There is an oil line supplying oil to the variable valve timing actuator located on the L3 engine model intake port side camshaft (front of camshaft).
Camshaft specification
|
ITEM
|
LF
|
L3
|
|
IN
|
EX
|
IN
|
EX
|
|
Lift
|
(mm {in})
|
8.8 {0.34}
|
7.7 {0.30}
|
9.1 {0.35}
|
7.8 {0.31}
|
|
Overlap
|
(°)
|
8
|
5-30
|
• The detection unit or the camshaft position (CMP) sensor, which is integrated with the camshaft, is on the intake port side camshaft for the LF engine model.
• The detection unit (trigger plate) for the camshaft position (CMP) sensor is on the intake port side camshaft for the L3 engine model.
• The groove for securing the No.1 cylinder TDC for the camshaft is provided at the rear of the intake and exhaust camshaft.
