Complete workshop & service manual with electrical wiring diagrams for Caterpillar 3161 Series Engines. It's the same service manual used by dealers that guaranteed to be fully functional and intact without any missing page.
This Caterpillar 3161 Series Engines service & repair manual (including maintenance, overhaul, disassembling & assembling, adjustment, tune-up, operation, inspecting, diagnostic & troubleshooting…) is divided into different sections. Each section covers a specific component or system with detailed illustrations. A table of contents is placed at the beginning of each section. Pages are easily found by category, and each page is expandable for great detail. The printer-ready PDF documents work like a charm on all kinds of devices.
Injector synchronization is setting of all injector racks to a reference position so each injector gives the same amount of fuel to each cylinder. This is done by setting each injector to the same position while control linkage is in a fixed position (called the synchronizing position). Control linkage is at synchronizing position when cylinder No. 1 injector is at fuel shutoff. Since injector No. 1 is reference point for other injectors, no synchronizing adjustment is made to injector No. 1.
Always synchronize an injector when it has been removed and reinstalled.
1. Turn off engine and shut off engine's electrical system. Remove fuel shutoff solenoid to allow injector rack control linkage to move freely during injector synchronization. Remove fuel shutoff solenoid using Spanner Wrench (4C4734). See Fig. 2.
2. Remove valve cover from intake manifold. Remove 4 bolts and cylinder No. 1 rocker arm assembly. See Fig. 3.
Fig. 3: Removing Fuel Shutoff Solenoid
3. Apply a small amount of clean engine oil to top of injector. Install Injector Spring Compressor (1U6675) to cylinder head and injector. See Fig. 4. Tighten bolt on Spring Compressor (1V6675) which is threaded into cylinder head hole for rocker arm assembly. This compresses injector. Tap lightly with a soft hammer on spring compressor directly above injector to ensure free movement of injector rack bar.