Usage:
The 6V4141 Tool Group is available to use in the calibration of Sleeve Metering Fuel Pumps. Use of the 6V4980 Torque Screwdriver Tool Group with the 6V4141 Tool Group can make adjustment of the sleeve lever a much faster operation. If it is desired to only check the calibration adjustment of specific fuel injection pumps, it will be necessary to use the tools and instructions in the 3P2200 Calibration Tool Group.
To check and/or adjust the crossover levers for a vee pump housing, it will be necessary to use the tools from the 5P4203 Tool Group. See "TOOLS NEEDED FOR CALIBRATION PROCEDURE" in this instruction for the parts in the 6V4141 Tool Group, and the additional tools needed.
Fuel pump calibration or crossover lever adjustment, can be checked and adjustments made with the fuel pump housing either on or off the engine, but the steps that follow (A, B and C) must always be done before any procedure is started.
A Disconnect the battery and shutoff the fuel supply to the fuel pump housing.
B Thoroughly clean the outside of the fuel pump housing and the work area all around where the calibration work is to be done.
C Remove the fuel shut-off solenoid, the cover for the torque control group and the large cover on the fuel pump housing. Remove fuel from the inside of the fuel pump housing before removal of the side cover on 4 or 6 cylinder fuel systems; or after removal of the top cover on V8 fuel systems.
Tools Needed For Calibration Procedure
6V4141 Tool Group
Additional tools that are also needed, but not shown, are as follows.
Adjustment Procedure
1 Install the pump housing in the 2P8315 Bracket Assembly (part of 6V3116 Adapter Group). Use the 8S2243 Wrench to remove the fuel pumps from the pump housing. Remove the air fuel ratio control, if so equipped, and the cover over the torque control group.
2 Put pin (1) in hole (A). [For 4 or 6 cylinder pump housings, use 3P1545 Pin (17.3734 mm). For vee fuel systems, use 3P1546 Pin (15.9410 mm). The pin length is given on the large diameter of the pin.]
3 Use a 1D4533 Bolt and a 1D4538 Bolt to fasten 5P6602 Adapter (2) in position. Put 8S7271 Screw (3) in adapter (2), and use the 6V6069 Torque Screwdriver with a 6V6076 Bit to tighten screw (3) to a torque of 2.3-2.8 N·m (20-25 lb in).
4 If the fuel pump housing is from a 4 or 6 cylinder engine, move the governor control lever to FULL LOAD and fasten it in this position.
5 For a vee fuel system, adjust low idle screw (4) to get a 9 ± 1 (.35" .04") dimension at location (B), between face (C) on low idle lever (5) and face (D) on boss (6). Tighten nut (7) to hold screw (4) in position.
6 Install a 6V190 Clamp (8) on the end (that is away from the governor) of sleeve shaft (9). Use a bolt to fasten the end of clamp (8) to the fuel pump housing as shown at location (E).
For vee engine pump housings, check and/or adjust the crossover levers in the pump housing, before adjustment of the sleeve shaft levers. See Form SMHS6988 for adjustment procedure.
7 To check the calibration of the fuel pumps on the left side of a vee fuel pump housing (as seen from the governor end of the fuel pump housing), install a 6V190 Clamp (8) on sleeve shaft (10) (end away from the governor). Use a bolt as shown at location (F), to hold the clamp in position. To check the calibration of the fuel pumps on the right side of a vee fuel pump housing, (as seen from the governor end of the fuel pump housing), install a 6V190 Clamp (8) at each end of sleeve shaft (11) on the right side. Use a bolt at each location (G) to hold the clamps in position as shown.
8 Use clean calibration fluid or diesel fuel for lubrication of 6V4082 Washer (12) on 6V4137 Fixture Group (13).
9 Loosen the clamp screw on all sleeve levers that are to be adjusted. Put 6V4137 Fixture (13) in a pump bore. Flat (H) must face away from sleeve levers (K). [Surface (J) must be toward levers (K).] Install 4N218 Bushing (14) to fasten fixture (13) in position. Tighten bushing (14) to a torque of 80 ± 7 N·m (60 ± 5 lb ft).
NOTE: In the adjustment procedure that follows, only a V8 fuel pump housing is shown. Sleeve lever adjustment procedure for a 4 or 6 cylinder pump housing is the same as that given for the V8 pump housing.
10 For adjustment of a sleeve lever (K), move the lever into position as follows: tang (L) of lever (K) must be against lower surface (M) (on 6V4137 Fixture Group), and washer (12) as shown.
NOTE: In the illustration above, the 6V190 Clamps have been removed for illustration purposes only. For a correct adjustment procedure, the 6V190 Clamps must be installed on the pump housing, for all pump groups.
11 For the V8 pump housing, push down lightly on crossover lever (15) and use 6V6069 Torque Screwdriver (16) with a 6V6072 Bit, to tighten sleeve screw (17) to a torque of 2.8 ± 0.2 N·m (25 ± 2 lb in).
NOTE: For a 4 or 6 cylinder pump housing, push down on the screw of a sleeve lever that has already been adjusted. If none have been adjusted, temporarily tighten a sleeve lever screw so the first sleeve lever can be adjusted, then loosen the screw that was temporarily tightened and adjust the remainder of the sleeve levers.
After each sleeve lever is adjusted, check the adjustment to make sure the sleeve control shaft does not turn. To check the adjustment for a vee pump housing, move the crossover levers up and down as shown. For a 4 or 6 cylinder pump housing, hold a lever, that has already been tightened, with your fingers and move that lever up and down. Watch the position of the sleeve control shaft. If there is any movement of the sleeve control shaft, the adjustment procedure for that sleeve lever must be done again.
12 Check and/or adjust each sleeve lever according to this procedure.