Kohler KDI 1903 TCR

73
EN
2.16.2 Timing system phasing angles
Important

For information purposes, Tab. 2.41 reports the
timing system diagram phasing angle values.

It should be noted that the said values may be
verified by rotating the crankshaft (Pos. 1 of Fig.
2.49) , by means of handling the rocker arm control
rod (Pos. 4 of Fig. 2.49) .
NOTE: Detecting the value by means of handling the rocker
arm/valves may not be correct due to the hydraulic tappets,
which may compress and create clearances that alters the
actual value.
Tab 2.41
ENGINE
INTAKE
EXHAUST
1903 TCR
opens 20°
before TDC
opens 32°
before BDC
closes 32°
after BDC
closes 16°
after TDC
2504 TCR
opens 10°
before TDC
opens 20°
before BDC
closes 14°
after BDC
closes 4°
after TDC
Fig 2.52
2.16.3 Rocker arm pin
Tab 2.42
POS.
DESCRIPTION
1
Rocker arm pin
2
Rocker arm distancing spring
3
Rocker arm pin support
4
Exhaust rocker arm
5
Intake rocker arm
Fig 2.53
2.16.4 Rocker arms
Tab 2.43
POS.
DESCRIPTION
1
Rocker arm body
2
Hydraulic tappet oil refill line
3
Valve tappet lubrication line
4
Valve tappet
5
Hydraulic tappet
Fig 2.54