Section 2.2

VALVE TRAIN

VALVE TRAIN COMPONENTS

Valve train components are listed below and shown in Figure 1, below.

ITEM

QTY

DESCRIPTION

1

2

Tappet

2

2

Push Rod

3

2

Rocker Arm

4

2

Pivot Ball Stud

5

2

Rocker Arm Jam Nut

6

1

Push Rod Guide Plate

7

2

Valve Spring

8

2

Valve Spring Retainer

9

2

Valve Spring Washer

10

1

Exhaust Valve

11

1

Intake Valve

 

 

 

 

 

 

 

 

 

 

Figure 1. Valve Train Components

VALVE COMPONENTS REMOVAL

1.The ROCKER ARM COVER is retained by four M6-1.00 x 12mm screws and lockwashers. Remove the four screws and lockwashers, then remove the ROCKER ARM COVER and its gasket.

NOTE: Replace the ROCKER ARM COVER GAS- KET each time the COVER is removed, to ensure proper sealing.

Figure 2. Removal of Rocker Arm over

2.Loosen the rocker arm jam nuts on the pivot ball studs. Then, loosen the pivot ball studs. Remove the two pivot ball studs, the rocker arms and the jam nuts. Also remove the push rod guide plate.

NOTE: Keep the Intake valve and exhaust valve parts separated. Intake and exhaust parts are Identical. However, once a wear pattern has been established on these parts their fit will be different.

Figure 3. Rocker Arm, Push Rod & Guide Plate

3.Remove the push rods. 4. Remove the cylinder head bolts, then remove the cylinder head and head gasket.

NOTE: Replace the head gasket every time the head is removed. The new head gasket must be free of nicks and scratches as these could cause leakage.

Page 2.2-1

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Generac Power Systems 941-2, 940-2 service manual Valve Train Components, Valve Components Removal
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941-2, 940-2 specifications

Generac Power Systems has established a strong reputation in the field of backup power solutions, particularly with its innovative products like the Generac 940-2 and 941-2 generator systems. These generators are designed to provide reliable power during emergencies, ensuring that homes and businesses can maintain operations seamlessly when grid power is disrupted.

One of the standout features of the Generac 940-2 and 941-2 models is their robust engine performance. Both generators utilize Generac’s patented engines, known for their durability and efficiency. These engines are built to withstand the most demanding conditions while providing a consistent power output. This reliability is crucial for users who depend on uninterrupted power supply for essential appliances and equipment.

In terms of technologies, the Generac 940-2 and 941-2 are equipped with advanced automatic transfer switch capabilities. This technology allows the generators to automatically start and supply power within seconds of an outage. This quick response time helps to ensure that critical systems remain operational without noticeable interruptions, which is vital for businesses and households alike.

Another important characteristic of these models is their user-friendly interface. The generators come with an intuitive digital controller that provides real-time information on power usage, system status, and maintenance needs. This technology makes it easy for users to monitor their generators and ensure they are always ready for an emergency.

The design of the Generac 940-2 and 941-2 also emphasizes noise reduction and aesthetic appeal. These units are engineered for quieter operation compared to traditional generators, making them suitable for residential areas. Their sleek appearance also fits well with modern home exteriors, enhancing rather than detracting from the property’s visual appeal.

Furthermore, these generators offer flexible fuel options, with the ability to run on natural gas or propane. This versatility allows users to choose the fuel source that best meets their needs, contributing to energy efficiency and lowering overall operating costs.

In summary, the Generac Power Systems 940-2 and 941-2 are exceptional generators that combine powerful performance with innovative technologies. Their automatic transfer switch capabilities, user-friendly controls, noise reduction features, and flexible fuel options make them an excellent choice for anyone seeking reliable backup power solutions. With these generators, users can rest assured knowing they have a dependable energy source ready when they need it most.
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