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3
40
42
41
Workshop Manual_3 - 4 LD_cod. ED0053025560_
4° ed
_ rev.
03
Disassembly / Reassembly
Side distributor port
It can be found in engines equipped with industrial type drive
shaft.
The gaskets
3
and
5
, thanks to their thickness,
assure the oil
seal and affect the camshaft axial clearance, as well.
For the check, see information hereunder.
Components
For 3LD 450, 3LD 510 picture 40
1
Port
2
Bush
3
Gasket
Fix the door at its base at 25 Nm.
For 4LD 640, 4LD 705, 4LD 820 picture 41
4
Port
5
Gasket
6
Ball bearing
Fix the port at its base at 40 Nm.
Camshaft axial clearance
Carry out this check before assembling the head. Fix the side
distributor port or bell
1
at 25 Nm. Remove the intake and
exhaust tappets and with an implement operate on the camshaft
forward and backward in an axial direction.
The axial clearance
A
shall be:
A
= 0.20 ÷ 0.60 mm 3LD 450, 3LD 450/S, 3LD 510, 3LD 510/S.
A
= 0.15 ÷ 0.65 mm for 4LD 640, 4LD 705, 4LD 820.
Adjust the clearance by changing the gasket thickness between
the distributor port (if it is assembled) or bell 1 and the base; it is
forbidden to assemble more than one gasket.
Summary of Contents for 3LD 450
Page 1: ...WORKSHOP MANUAL Engine Series 3 4 LD ...
Page 9: ... 9 Workshop Manual_3 4 LD_cod ED0053025560_4 ed_ rev 03 ...
Page 45: ... 45 Workshop Manual_3 4 LD_cod ED0053025560_4 ed_ rev 03 ...
Page 46: ... 46 Workshop Manual__3 4 LD_cod ED0053025560_4 ed_ rev 03 ...
Page 47: ... 47 Workshop Manual_3 4 LD_cod ED0053025560_4 ed_ rev 03 ...
