page 44
Release 00 - 03/2018
Engine TRE 224
Workshop Manual
15.2. Dismantling and checking the camshaft and
counterweight governor
1 - Bring the piston to the TDC (Top Dead Centre).
2 - Open the crank case
3 - Remove the camshaft (5).
4 -
Measure seat (A) of the camshaft, checking
for wear and tear. The value must not be lower
than 13,92 mm.
5 -
Measure the cams (B), checking for wear
and tear. The value must not be lower than 27,30
mm
IN (YI)
and 27,45
EX (YE)
.
6 - Check the regular movement of the pressure
reducer (6) and the efficiency of the spring (7); the
whole group must always be replaced in the case
of breakage or irregular operation of the pressure
reducer.
7 - Check that the irregolar centrifugal (8) that are
not present ruptures of the lubrication pallets.
8 - Turn the governor’s gears quickly and check that
the counterweights (9) expand correctly, causing
the pin (10) to be moved axially.
15. ENGINE BLOCK - Overhauling internal parts
5
6
7
A
10
9
8
EX(YE)
B
IN(YI)
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