Model 2513 Vacuum / Pressure Gauge Kit
VACUUM TESTING PROCEDURES
FUEL PRESSURE TESTING PROCEDURE
Running Engine Tests
1. Connect the vacuum gauge to the manifold vacuum
source.
2. Run the engine at normal operating temperature and
idle speed. A steady reading between 15 and 22
inches indicates a mechanically sound engine.
WARNING:
CAUTION:
FOR USE ON FUEL SYSTEMS WITH A
CARBURETOR, OR LOW-PRESSURE
TBI SYSTEMS NOT EXCEEDING
15 PSI.
USE EXTREME CARE IN
DISCONNECTING FUEL LINES.
LEAKING GASOLINE IS A SERIOUS
HAZARD.
PCV Valve Test For Crankcase Ventilation
1. Operate the engine at normal temperature and idle
speed.
2. Remove the hose connected between the air cleaner
and valve cover or oil filler/breather cap. Plug the oil
dipstick tube to prevent an air leak.
3. Hold the vacuum gauge with the rubber universal
adapter firmly over the valve cover hole or filler/
breather cap opening. A good PCV system will draw
a vacuum of 3 to 5 inches within 10 seconds.
1. Check all fittings, connections, and rubber fuel lines
for leaks. If leaks are present, repair leaks before
testing.
2. Disconnect the fuel line between the fuel pump and
the carburetor or the TBI system. Attach the gauge
hose to the fuel line using adapters as needed.
3. Operate the engine at idle speed and note reading.
On a good fuel pump, the pressure will range from
4 to 6 psi, with lower readings on smaller engines.
Repair Parts List
Part Number Description
Part Number Description
0031-0424
0400-3008
0400-0384
0400-3113
0400-3114
Vacuum/Pressure Gauge
0180-1497
0400-3115
0400-3116
0001-3468
Conical Adapter
Gauge Boot
Fuel Line/Universal Adapter
Carry Case
Vacuum Hose, 24”
‘T’ Fitting
Instruction Label
In-line Connector
0001-000-3468
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