The engine control components are all on the cylinder head. The cover contains part of the lubrication duct of the camshaft and of the rocker arms, as well as part of the engine vent system. Components: 1 Oil preassure switch 2 Camshaft lubrification port 3 Rocker arm lubrification port 4 Oil exhaust hose from sump… Read More »
The pump rotors should be coupled on the same side, see references 2 and 3. Replace the O-ring 1. Tighten the fastening screws to the crankcase at 25 Nm and those of the plate at 10 Nm.
KOHLER therefore recommends that the oil pump be handled as an assembly from a service standpoint KOHLER does not recommend that the oil pump be disassembled, then reassembled for purposes of installation on the engine except during emergency situations. Rotate the crankshaft until the crankshaft timing pulley keyway is vertical as shown. Remove the oil… Read More »
Caution – Warning While reassembling, check the integrity of the components and check that they operate correctly. Bad operation of the speed governor can cause serious damage to the engine and to people being near to it. Remount in reverse order to Fig. 44. When inserting the bearing in the camshaft, do it so that… Read More »
With applications for the automotive sector the regulator spring (C fig. 45) is replaced by a device (plunger barrel) that only enables a constant speed at the minimum and maximum rpm rating. Components: 1 Nut 2 Idle speed spring 3 Max. speed spring 4 Case 5 Register 6 Spring ring 7 Actuation rod Note: There… Read More »
In the section view of the leverages the 4 ball bearings A are highlighted. They are mounted on engines for generator sets adjusted at 1,500÷1,800 rpm and on other particular applications on request.
Unscrew the pin that attaches it to the cylinder head. To remove it as shown in the figure it is necessary to dismount the camshaft. It could also be removed from the accelerator box side by unscrewing the torque gearing device. Before reassembling it, check value A (45 to 46 mm) and the parallelism of… Read More »
1 Oil seal 2 Screw 3 Support 4 O-Ring 5 Bearing 6 Retainer 7 Screw 8 Flyweight assembly 9 Spool 10 Thrust washer
The weight-type mechanical governor, is driven directly by the camshaft and is housed with the cylinder head. Components: 1 Thrust washer 2 Spool 3 Flyweight assembly Note: In engines with the minimum/maximum (see fig. 49) the weights are lightened by 25%.
The angle values are determined by turning the driving shaft clockwise. S = Piston at top dead centre I = Piston at bottom dead centre α = Intake valve open β = Intake valve closed γ = Exhaust valve open δ = Exhaust valve closed Timing angles for operating purposes (valve clearance = 0.25 mm)… Read More »