1. MOMENTARILY NOISY WHEN CAR IS STARTED: This condition is normal. Oil drains from the lifters which are holding the valves open when the engine…

Roller lifter wear, sticking, or looseness can be caused by high carbon content in the engine oil, which is the product of combustion and can…

Rocker arm shafts may break if installed improperly. Uneven torquing causes stress at bolt holes. The proper method to install rocker shafts is as follows:…

Valve lifters and push rods should be kept in order so they can be re-installed in their original position. The push rods must be installed…

Oil is supplied to the lifter through a hole in the side of the lifter body which indexes with a groove and hole in the…

Roller hydraulic lifters are used to reduce the amount of friction between the valve lifter and the camshaft lobe. See Figure 2-6. A requirement with…

• THE 1985 AND LATER ROCKER ARM ASSEMBLY CONSISTS OF: 1. Steel stamped rocker arms. 2. A large diameter steel shaft bolted directly to the…

With the high compression ratio of the pre-chamber diesel, there is minimal valve-to-piston clearance. Because it is important to have a rigid valve train that…

The cylinder case is made of one piece cast iron comprised of a special alloy containing carbon, silicon, and chromium. This mixture provides good elasticity,…

The 6.2L Diesel engine features overhead valves & stainless steel swirl pre-chambers. It is an over square design; that is the bore is larger than…