What happens if valves are not adjusted?
The valves in your engine open and close through a complex, precisely timed system. They open to accept fuel into the cylinder, close to form compression and open again to release exhaust. Without an adjustment, they may not open and close efficiently, reducing your car’s overall performance.
How do you know if the valve lash of your engine needs adjustment?
Rattling Noise (Loose Valves) The valve train makes a lot of noise. Sometimes even a well calibrated engine will make rattling noise, but if over time your engine starts to develop a rattling or clattering noise, don’t ignore it. A sudden change in valve train noise is sign that your bike should get an adjustment.
What is the proper valve adjustment?
When the exhaust valve just begins to open on the first cylinder in the firing order, adjust the intake valve by loosening the adjusting nut slightly while spinning the pushrod until you feel lash in the rocker arm. Tighten the adjusting nut until the slack is taken out of the rocker arm and pushrod.
What is an overhead adjustment?
The overhead adjustment is setting the clearance between the rocker arms and the valve cross heads. As the valve and valve seat wear it allows the valve springs to pull. the valves up further as it shuts the valve which over time reduces the clearance between the rocker arm and cross head.
What kind of engine does a Caterpillar D342 have?
Caterpillar four-stroke-cycle Diesel Model D342 with six cylin- ders, 5.75″ (146 mm) bore, 8.0″ (203 mm) stroke and 1,246 cu. in. (20.4 litres) piston displacement. Turbocharged. Individual adjustment-free fuel injection pumps and non-clogging injection valves and precombustion chambers.
What kind of valve does a caterpillar use?
Speciál valve permits unrestricted speed and direction changes under full load. Single-stage torque converter with output torque divider combines smoothness and economy. Connected to transmis- sion by double universal joint for unit construction to provide servicing ease.
How big is the engine in a caterpillar?
Engine will maintain specified power up to 7,500 feet (2300 m) altitude. Caterpillar four-stroke-cycle Diesel Model D342 with six cylin- ders, 5.75″ (146 mm) bore, 8.0″ (203 mm) stroke and 1,246 cu. in. (20.4 litres) piston displacement. Turbocharged.
What are the features of a caterpillar modular cab?
• Caterpillar Modular Cab is a self-contained unit with oper- átor protection and improved environment built in .. .sound suppressed . . . tilts rearward for easier servicing of power train components. • CAT PLUS . . . from your Caterpillar Dealer . . . the most comprehensive, total product support systém in the industry.