36
COMPILER TECO/ATI ENDORSEDDATE
01.08.2003
REG. CODE
1-5302-620
MODEL N°
50902
DATE OF ISSUE
08-03
REVISION 00
XIII
64
65
67
66
kgm 3,8 ÷ 4 (37,3 ÷ 39,3 Nm)
1,7 ÷ 2,1 mm
34 ÷ 34,2 mm
ENGINE ASSEMBLY
Feeding pump assembly
1.Insert fuel feeding pump cap into its housing and make sure it
moves freely. The length of the cap is :
4.With fuel feeding pump control cams at bottom dead centre
position mount feeding pump and action manually. There
should still be a small suction stroke (fig. 65).
If said checks are not carried out, the fuel feeding pump
diaphram could be damaged due to the excessive stroke
to which it will be subjected.
2.Fit gasket (0.5 mm and 0.2 mm thick).
3.With fuel pump control cams in a rest position the cap should
protude from the gasket surface (fig. 64) for:
Piston-connection rod couplings
The piston is coupled to the connecting rod by means of slight hand
pressure on the gudgeon pin without heating the piston.
RD 210-211-218
The clearance between the small end and the gudgeon pin is:
0.023 to 0.038 mm and between gudgeon pin and piston: 0.002 to
0.008 mm.
The lubrication groove (A, fig. 66) on the small end must be turned
towards the engine rotation direction (injection pump side).
RD 220 - 240 - 270 - 278
The clearance between small end main bearing and gudgeon pin
is: 0.001 to 0.007 mm and between gudgeon pin and piston: 0,001
to 0,010 mm.
There is no specific position for mounting the connecting rod as the
lubrication groove is located inside the rod itself.
Connecting rod-crankshaft coupling
After insertion of the bearings into the big end, attach connecting
rods to crank pins, bearing in mind that an arrow, on the pistons for
RD210-211 , indicates the rotation direction of the engine (fig. 66).
The combustion chamber, which is eccentric with respect to the
axis, should be turned to the nozzle side. On pistons for RD270-278,
the combustion chamber is centered and there is no specific
mounting position. Mount connecting rod caps with reference
numbers corresponding to those on the rod (fig. 67). The coupling
clearance between big end bearing and pins is: 0.020 to 0.072 mm.
Tighten up connecting rod bolts to:
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