30
Cylinder
Block
Engine
Fuel Injection
Pump
Etched Value
on Crankcase
The Crankshaft –gear has one dot on it which
should be matched with matching marks (two
dots) on the camshaft gear.
On the Crankshaft front end another gear is
mounted with the help of key way . This gear
is called as PTO gear which is having one dot.
This has to be matched with the two dots on
the balancing gear. This Gear pair is provided
to reduce engine vibrations.
Bumping Clearance Setting ( Selection of
Shims below the Cylinder block):
1 Mount the Cylinder block on the crankcase
without shims.
2 Rotate the Crankpulley and get the piston
in T.D.C position.
3 Place the bumping clearance tool (MST-
H1-EN- ) on the liner top face without
cylinder head gasket. The tool can be
placed on any of the two cylinder head
studs and with the help of given spacers
tighten the tool. Torquen the nuts to 40
Nm. This will ensure that the tapered
portion of the Cylinder blocks sits properly
in the crankcase.
4 Rotate Crankpulley in clockwise/
anticlockwise and note the maximum dial
reading at TDC. This is to ensure that piston
is at the top dead centre position. If the
reading is ‘X’mm then the shims required
will be “ (X – 0.2 or 0.30) mm”.
The shims are available in ‘3’ different
sizes : 0.4 mm, 0.3 mm and 0.2mm. The
Value of X will always be greater then
0.30mm.
FIP Mounting Setting : There is a value in mm
which is punched on the crankcase next to the
FIP.
1 Whenever the FIP is removed the no of shims
to be replaced should be equal to the value
on the Crankcase.
2 If FIP is to be replaced, then value on the
old FIP Should be noted.
3 Value provided on new FIP to be noted.
Now the revised number of shims = Value on
Crankcase – Value on old FIP x 0.1 + Value on
New FIP x 0.1
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