RAM 2500 Truck 4WD L6-359 5.9L DSL Turbo VIN D FI (1998)
Fuel Injection Pump: Adjustments
Fig 36 Rotating Engine With Barring Tool
1. Thoroughly clean the engine and fuel system before attempting to remove any components. Pay special attention to the top of the fuel injection
pump. Use compressed air to remove any water remaining on the fuel pump after the cleaning process.
CAUTION: Do not allow any dirt, debris, or paint chips to enter the fuel system while it is open. If foreign material of any type is allowed into
the pump, lines or injectors during this process it could result in an injection pump or fuel injector malfunction.
NOTE: Locate top dead center (TDC) on cylinder #1.
2. Remove the rubber access plug located in the rear flange of the engine on the exhaust manifold side.
NOTE: Removing the #1 cylinder valve cover and first barring (rotating) the engine clockwise until both intake and exhaust valves are closed
will speed up locating engine TDC as described later in step 4.
3. Insert the barring tool number 7471E through the access hole and into the flywheel housing.
4. While holding tension on the timing pin (toward front of engine), slowly rotate the engine counterclockwise with the barring tool. Hold a slight
rearward (pushing) pressure on the barring tool and continue to rotate the tool counterclockwise until the timing pin drops into the machined hole
in the back of the camshaft gear. When the barring tool is rotated counterclockwise, the vibration damper should be rotating clockwise as viewed
from front. When the pin aligns to the gear, and the intake and exhaust valves are closed at the #1 cylinder, the engine is at the TDC position
(compression stroke) at cylinder number 1. Place a paint mark on the dampener to indicate TDC. This mark is to be used as a reference point only
and is not to be used for actual pump timing procedure. Remove the pin. This will prevent damage when barring (rotating) the engine in later steps.
NOTE: The pin is located above the power steering pump, below and to the inside of the fuel injection pump, on the rear of the cam gear
housing.
Fig 37 Back Of Camshaft Gear -- Typical
