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Cat MXS

lugnut · 2015-01-02 16:33

Anyone have info on running overhead on Mxs cat c15

Replies7
  1. #1Shimmy12015-01-02 17:47

    I'm sure someone will, but they're going to need engine serial number at the very least, year and what it's in as well as serial would be helpful as well.

  2. #2Mike L2015-01-02 19:17

    .015 intake, .30 exhaust,.30 jakes and you need a special tool to set injector height

  3. #3Mobiltech2015-01-02 20:32

    You can do injector height with a digital calliper set too spec To make an adjustment to the unit injectors on cylinders 3, 5, and 6 use the following procedure: Put the No. 1 piston at the top center position on the compression stroke. Refer to Testing and Adjusting, "Finding Top Center Position for No. 1 Piston". Injector height gauge (4) is used in order to obtain a dimension of 78.0 ± 0.2 mm (3.07 ± 0.01 inch). The dimension is measured from the top of the unit injector to the machined ledge of the fuel injector body. Turn unit injector adjustment screw (2) clockwise until the correct height is obtained. Hold the adjustment screw in this position and tighten locknut (3) to a torque of 100 ± 10 N·m (74 ± 7 lb ft). To make an adjustment to the unit injectors on cylinders 1, 2, and 4, remove the timing bolt. Turn the flywheel by 360 degrees in the direction of engine rotation. The direction of engine rotation is counterclockwise, as the engine is viewed from the flywheel end. This will put the number 1 piston at the top center position on the exhaust stroke. Repeat Steps 3 through 4. Remove the timing bolt from the flywheel after all the unit injector adjustments have been made. Reinstall the valve mechanism cover. You might also want to do the variable valve actuator adjustment. Variable Valve Actuators - Inspect/Adjust SMCS - 1105-025; 1105-040 NOTICE Do not disassemble the Variable Valve Actuator. There are no components of the Variable Valve Actuator that are serviceable. If the Variable Valve Actuator is disassembled, the warranty will be void. View Image Illustration 1 g01102463 (1) Adjustment screw (2) Adjustment screw locknut (3) Intake rocker arm (4) Actuator rod Put the No. 1 piston at the top center position on the compression stroke. Refer to Testing and Adjusting, "Finding Top Center Position for No. 1 Piston". Loosen adjustment screw locknut (2) and back out adjustment screw (1) until actuator rod (4) is not in contact with intake rocker arm (3) . Note: During this procedure, ensure that the intake rocker arm is in full contact with the valve bridge. Place the appropriate feeler gauge between the actuator rod and the intake rocker arm. Turn the adjustment screw in a clockwise direction. Slide the feeler gauge between the actuator rod and the intake rocker arm. Continue turning the adjustment screw until a slight drag is felt on the feeler gauge. Remove the feeler gauge. Set the clearance to 0.50 ± 0.08 mm (0.020 ± 0.003 inch). Tighten the adjustment screw locknut to 50 ± 10 N·m (37 ± 7 lb ft). Recheck the lash setting after the adjustment screw locknut has been torqued. Make the lash setting on the following cylinders: 1, 2 and 4. Remove the timing bolt from the flywheel. Turn the crankshaft clockwise by 360 degrees. This will position the No. 6 piston at the top center on the compression stroke. Install the timing bolt in the flywheel. Repeat Step 6 for the following cylinders: 3, 5 and 6. Remove the timing bolt from the flywheel.

  4. #4Shimmy12015-01-02 20:50

    Yeah, you probably could, if you've set the injectors many times before. It sounds like a similar tool to what I use on my Detroit 60 Series. The tool only cost me about $20, manuals $300. You don't need the manual now. I've done overheads quite a bit, but I'm not sure I'd be completely comfortable without the tool.

  5. #5lugnut2015-01-03 12:03

    Thanks for info I have injector height tool my sis is down, it is great when it works but a pain when it is down. Thanks again

  6. #6lugnut2015-01-03 13:30

    One last question do you know torque for the cat brakes five nuts and one bolt.

  7. #7Mobiltech2015-01-03 16:59

    View Image Illustration 1 g03462843 Note: If necessary, install the studs called out in Illustration 1. Install studs (11) . Tighten studs (11) to a torque of 50 ± 5 N·m (37 ± 4 lb ft). Turn studs (11) for an additional 45 ± 5 degrees. Install stud (9) and tighten stud (9) to a torque of 65 ± 10 N·m (48 ± 7 lb ft). Install support (10) over stud (9) . Install studs (8) . Tighten studs (8) to a torque of 47 ± 9 N·m (35 ± 7 lb ft). View Image Illustration 2 g01261951 View Image Illustration 3 g03462898 Install valve actuator (7) . Install nuts (6) . Install bolt (5) . Install nuts (4) . Tighten nuts (6) , bolt (5) , and nuts (4) in the sequence that is shown in Illustration 3. Tighten bolt (5) and nuts (6) to a torque of 105 ± 20 N·m (77 ± 15 lb ft). Tighten nuts (4) to a torque of 47 ± 9 N·m (35 ± 7 lb ft). View Image Illustration 4 g01261947 Install the O-ring seals in engine oil connector (1) . Apply Tooling (A) on the mounting surface of the variable valve actuator and the engine oil connector.