5 Main Causes of Rocker's arm falling off

The rocker's arm is a vital part of the engine & when it falls off causes serious damage to the engine. It is a common problem with the engine of a car. The cause of rocker arm falling off could be oil starvation. This occurs when there is insufficient oil in the system for lubrication and cooling. The lack of oil will result in metal-on-metal contact which can cause wear on the rocker arm and other parts as well. Another cause could be worn out or damaged bearings on the crankshaft or camshafts where they are attached to the cylinder head. Some of the common reasons are inadequate lubrication, improper installation, Overheating, Rocker arm shaft failure & Impact damage.

In this article, we will discuss the 5 leading causes of rocker's arms falling off. 

The 5 main causes of rocker arm falling off are:

Rockers being too tight 

The first cause could be over-tightening or over tightening bolts which can lead to increased stress on metal parts and eventually cause them to break or crack open.

Improper installation 

When installing a new rocker arm, it's important to make sure that it's installed properly before tightening down the bolts. This ensures that there are no gaps between any components.

Rocker arm shafts that have been bent or broken

 A broken bolt or stud can cause it to fall off. The rocker arm can be knocked off by debris, such as leaves and dirt, or by a foreign object. The rocker arm bearing can fail, causing the shaft to wobble and eventually break. An oil leak from the valve cover gasket can lead to corrosion on the rocker arm studs which will eventually lead to them breaking. Lack of lubrication or improper lubrication will also lead to failure.

Rocker arms that have been cracked or delaminated

When there is too much weight on one side of the vehicle. This can happen if you overload one side with cargo or passengers or when the vehicle has been driven off-road and encounters an obstacle such as a tree root or rock. Sometimes, a part on the axle, such as a wheel bearing, has failed and caused the axle to bend. 

Use of the incorrect tool 

 The fifth cause is when someone may have used an incorrect tool to remove your wheel nuts which could have caused damage to your axle.

The Dodge 4.7 rocker arm is a part of the valve train that is located on the left side of the engine. It's designed to help close the intake and exhaust valves for a given cylinder. The rocker arm can fall off due to engine overheating, improper installation, loose oil pressure, low oil level, and faulty timing chain. It’s important to know the causes of a rocker arm falling off so that you can prevent it from happening in the future. It is best to have a professional mechanic look at the problem and diagnose it.