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VACUUM TESTING PROCEDURES
Running Engine Tests
Connect the vacuum gauge to the manifold vacuum
1.
source.
Run the engine at normal operating temperature and
2.
idle speed. A steady reading between 15 and 22
inches indicates a mechanically sound engine.
PCV Valve Test For Crankcase Ventilation
Operate the engine at normal temperature and idle
1.
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.
Part Number
Description
0031-0424
Vacuum/Pressure Gauge
0400-3008
Gauge Boot
0400-0384
Vacuum Hose, 24"
0400-3113
'T' Fitting
0400-3114
In-line Connector
Model 2513 Vacuum / Pressure Gauge Kit
Repair Parts List
Part Number
0180-1497
0400-3115
0400-3116
0001-3468
FUEL PRESSURE TESTING PROCEDURE
WARNING:
FOR USE ON FUEL SYSTEMS WITH A
CARBURETOR, OR LOW-PRESSURE
TBI SYSTEMS NOT EXCEEDING
15 PSI.
CAUTION:
USE EXTREME CARE IN
DISCONNECTING FUEL LINES.
LEAKING GASOLINE IS A SERIOUS
HAZARD.
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.
Description
Conical Adapter
Fuel Line/Universal Adapter
Carry Case
Instruction Label
0001-000-3468
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