Service Tools - Engine Testing Section 14 - Engine Testing - Group 14 M11 Page 14-20 Service Tools - Engine Testing The following special tools are recommended to perform procedures in Section 8. The use of these tools is shown in the appropriate procedure. These tools can be purchased from your local Cummins Authorized Repair Location. Tool No. Tool Description Tool Illustration Vacuum Gauge ST-434 Used to check fuel filter or intake air restriction. Manometer Used with tool, Part No. 3375150 and 3822556, for measuring blowby. ST-1111-3 Lubricating Oil Sampling Filter Used to monitor oil contamination. ST-1135 Pressure Gauge Used to measure intake manifold pressure.
ST-1273 Pressure Gauge (0-160 psi) Used to measure lubricating oil pressure. 3375275 Pressure Gauge (0-300 psi) 3375932 Used to measure fuel pressure. Includes necessary hoses and hardware to attach to a fuel pump. Part No. ST-435-1 is the hose and Part No. ST-435-6 is the pressure gauge.