In the combustion process, diesel fuel takes a certain amount of time to ignite and burn. As the engine runs faster, the burn time remains…
Category: Fuel Systems
Engines equipped with individual PF pumps usually have their fuel racks (control rods) interconnected by adjustable mechanical linkage to permit balancing the fuel flow to…
The idle adjustment screw location will vary based on the type of governor being used. Once the engine is started, adjust the idle speed on…
(a) Example of engine-to-pump timing marks which can be referenced when spill timing the injection pump to the No. I cylinder (some engines use No.6…
The main function of any delivery valve in the injection pump is twofold: 1. At the end of the plunger’s upward fuel delivery stroke, the…
Double-acting fuel supply pump: 1, nonreturn valve (suction side); 2, nonreturn valve In the double-acting supply pump shown in Figure above, two additional non retum…
As the injection pump camshaft continues to revolve, it forces the roller tappet of the supply pump outward, away from the injection pump, also pushing…
On the suction stroke, the roller of the supply pump follows the camshaft inward because of the force of the plunger spring . As the…
This is a single-acting plunger pump usually mounted on the side of the main injection pump and driven off the pump camshaft. The pump can…
Exploded view of an injection pump pressure relief valve 1, valve body; 2, valve; 3, spring; 4, plug and seal ring.