Checking Pump-To-Engine Timing; Fuel Injection Pump Access Cover Installation - Mack E7 Service Manual

5-101.bk Page 18 Friday, March 17, 2006 11:05 AM
200 SETUP AND ADJUSTMENTS

Checking Pump-to-Engine Timing

Using hub bolt to rotate engine backward may
change bolt torque. Check torque of hub bolt after
completing timing procedure.
1. Rotate engine crankshaft counterclockwise
to a minimum of 45 degrees before TDC.
Both A and B lamps will go out.
2. Rotate engine crankshaft clockwise until
both A and B lamps are lit. If timing pointer
does not cover a value within ± 0.5 (1/2)
degree of desired timing, the engine is not
timed correctly. Before continuing, check
and verify piston is at TDC. Refer to
Locating Piston Top Dead Center (TDC) in
SETUP AND ADJUSTMENTS.
If timing is not within specification, reset and
recheck timing.
3. After achieving correct timing, remove timing
tools.
a. Turn tester power off.
b. Disconnect tester ground.
c. Remove fixed timing probe.
4. Install fixed timing port plug or TEM sensor.
5. Check torque of hub bolt. The correct torque
is 360 lb-ft (488 N•m).
Page 7-18
Fuel Injection Pump Access Cover
Installation
To install the fuel injection pump access cover:
1. Lubricate the access cover O-ring with
Lubrizol€ OS-50044 or equivalent.
Figure 7-27 — Lubricating Access Cover O-Ring
2. Install clamp and access cover capscrews.
3. Torque access cover capscrews to 30 lb-ft
(41 N m) using torque wrench J 24407 or
equivalent.
Figure 7-28 — Installing and Torquing Access Cover
Capscrews
4. Run wire through both the drilled access
cover capscrews and through the center of
the lead seal and loop it. Then bring it
through again.
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