Test NS-1: Checking Engine Mechanical Systems
- Check engine valve timing. If engine valve timing is correct, go to next step. If engine valve timing is not correct, repair as necessary. Perform TEST VER-1A .
- Check compression on all cylinders. If compression on all cylinders is at least 100 psi (7 kg/cm2 ) and compression between all cylinders is within 25 percent of each other, go to next step. If compression on all cylinders is not at least 100 psi (7 kg/cm2 ) and compression between all cylinders is not within 25 percent of each other, repair engine mechanical problem as necessary. Perform TEST VER-2A .
- Check exhaust system for restrictions. Repair exhaust system as necessary. Perform TEST VER-2A . If exhaust system is okay, go to next step.
- Check fuel for contamination. Drain fuel as necessary. Perform TEST VER-2A . If fuel system is free from contamination, go to next step.
- Ensure proper injector driver wiring is installed on correct injector. Ensure injector is not plugged or restricted. Repair injector or wiring as necessary. Perform TEST VER-2A . If injector wiring and injectors are okay, test is complete.