Perkins珀金斯850-854F柴油发动机T411893汽缸盖总成

Camshaft and cam followers

To remove

Operation 6-5

Caution:  Remove fuel lift pump and all the cam followers before removing the camshaft.

Workshop Manual, TPD 1377E, issue 4

69

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6

100 Series

To fit

Operation 6-6

Cautions:

The new camshaft is not interchangeable with the old camshaft.

If a new camshaft is fitted, new cam followers of the correct type must be fitted as well.

From engine serial number 333367J the camshaft and the cam followers fitted to the 103-07 engine have

changed.

The width of the injection cams for N°2 and N°3 cylinders have been increased by 0,5 mm.

To prevent interference with the wider injection cam on the camshaft, the diameter of the tappet end of the

exhaust cam follower for N°1 cylinder has been decreased by 1,0 mm to 17 mm.

Tappet

Ø 18

Ø 18

Ø 17

Current

New

120116100

120116180

B

70

Workshop Manual, TPD 1377E, issue 4

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6

100 Series

Camshaft assembly

To inspect

Operation 6-7

Cam height (intake and exhaust cams) (A1)

Engine model

Height mm (in)

Standard

Service limit

26,1 (1.028)

26,1 (1.028)

33,7 (1.327)

102-05, 103-07

26,565 - 26,620 (1.04590 - 1.04803)

26,445 - 26,500 (1.04114 - 1.04330)

34,065 - 34,120 (1.34114 - 1.34330)

103-10

103-13, 103-15, 104-19, 104-22

Height of cam for injection pump (A2)

Engine model

Height mm (in)

Standard

Service limit

34,3 (1.351)

33,8 (1.331)

41,8 (1.645)

102-05, 103-07

34,480 - 34,520 (1.3575 - 1.3591)

33,940 - 34,060 (1.3362 - 1.34094)

41,940 - 42,060 (1.65120 - 1.65590)

103-10

103-13, 103-15, 104-19, 104-22

Height of cam for fuel feed pump (A3)

Engine model

Height mm (in)

Standard

Service limit

27,0 (1.063)

30,0 (1.181)

102-05, 103-07, 103-10

27,900 - 28,000 (1.09842 - 1.10236)

31,900 - 32,000 (1.25590 - 1.25984)

103-13, 103-15, 104-19, 104-22

3

2

1

Workshop Manual, TPD 1377E, issue 4

71

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6

100 Series

Max fuel screw and max speed screw

To locate

Operation 6-8

Notes:

The max fuel screw (A1) and max speed screw (A2) should not be adjusted by the operator.

An anti tamper device (A3) may be fitted. Where this device is present, see Operation 6-9.

If adjustment of the maximum fuel screw or the no load speed is necessary, the adjustment must be done

on an engine test facility by personnel approved by Perkins Engines Company Ltd.

1

2

3

72

Workshop Manual, TPD 1377E, issue 4

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6

100 Series

To remove and to fit

Operation 6-9

A requirement of emissions legislation is that access to adjustments (A1, A2) that affect the engine's exhaust

emissions is limited to personnel approved by Perkins Engines Company Ltd.

The fuel adjustment screw (B2) and maximum speed adjustment (B5) are affected. The fuel adjustment screw

has a tamper resistant body (B1) fitted over the screw and the maximum speed adjustment is protected by a

tamper evident plastic cap (B4).

To remove the tamper resistant body

1  Strike the tamper resistant device metal body (B1) with a suitable cold chisel approximately 10-15 mm from

the cylinder block flange. This will deform the body against the screw lock nut. This operation is necessary until

the metal tube cannot freely rotate around the fuel adjustment screw.

2  Rotate the metal body and the fuel adjustment screw together using a pair of pliers at the D-plug (B3) end

of the tube.

3  Remove the fuel adjustment screw (B2) as a single assembly completely from the cylinder block.

As the removal procedure for the original fuel adjustment screw and tamper resistant device body will cause

permanent damage to both these items, replacements must be obtained from PDC Irlam.

To re-fit a new fuel screw and service tamper resistant body

1  The fuel adjustment screw assembly (B2) may vary according to the engine build code. The appropriate

replacement must be obtained from PDC Irlam.

1

2

3

1

2

4

5

A

B

Continued

Workshop Manual, TPD 1377E, issue 4

73

This document has been printed from SPI². Not for Resale