Loosen the screws and remove the cover 1. Check gasket ring 2 for integrity. Remove the drive rod from the fuel pump. Gently remove the camshaft, slight rotations may be required to avoid binding the camshaft lobes against the camshaft bearing surface bores. Note:The lift pump drive eccentric 3 is included on the flywheel end… Read More »
To remove pivot 1 from the support 2 it’s necessary to drill out pin 3 using a 4mm drill bit. On remounting insert a new pin and reinsert it in bearing surface A (0 to 1 mm). Check the rod’s state of wear and tear (diam. B) and that of the rocker arm holes (diam.… Read More »
When the removal (but not replacement) of a unit injector is required the following procedure may be used to avoid the need for other adjustments: Rotate the engine until the unit injector cam lobe 2 forces the cam follower 1 to the highest position, then insert a suitable sized (hardened) pin into the hole 3… Read More »
Non-return valve A immediately stops the engine whenever the stop is activated. Note: If the value of B is not achieved, the two rings C are not subject to enough compression to ensure the seal; any fuel loss would contaminate the lubrication oil and consequently damage the engine, F = metal gasket.
When removing the fuel feeding pumps A, with the rail holders B, pay attention that the sealing O-rings C remain in their seats. When refitting tighten the rail holder screws at a torque of 4 Nm.
Depending on the engine model, the injection pump control rod will link two, three, or four injectors to the engine governor. Screws 1 and 2 are pivoted on the delivery control lever of each pump/injector B, unscrew the screws and remove spring 3. When refitting tighten the screws 1 and 2 at a torque of… Read More »
Important Setting should be performed when the engine is cold. Bring each cylinder piston to top dead center on the compression stroke and set clearance A at 0,20 mm for both the intake and exhaust valves. For greater convenience, clearance check B is accepted. In this case the value is 0.15 mm.
For KDW 702-1003-1404 engines, the exhaust gases exit from the cylinder head cover (see Fig. 53, 54). Remove the cover, check the integrity of the air valve and oil decanting wire gauze.
Components: 1 Gland Nut 2 Bushing 3 Body 4 Diaphragm 5 Cap / Cover 6 Clip / Lock 7 O-Ring 8 Washer 9 O-Ring 10 Valve 11 Spring 12 Tube 13 Hose The vacuum relief valve is an engine safety device. Its function is that of limiting the vacuum whenever it tends to increase. Without… Read More »
The rocker arm cover gasket A ensures the seal of the lubrication circuit for the camshaft and rocker arm shaft. Always replace it and mount it with especial care above all in zones 1 and 2 where, for greater safety, it is advisable to apply a few drops of silicon sealant. Tighten the rocker arm… Read More »