4.17INTAKE LEAK TEST
GENERAL
Do not allow open flame or sparks near propane. Propane
is extremely flammable, which could cause death or ser-
ious injury. (00521b)
Read and follow warnings and directions on propane
bottle. Failure to follow warnings and directions can result
in death or serious injury. (00471b)
NOTES
• To prevent false readings, keep air cleaner cover installed
when performing test.
• Do not direct propane into air cleaner; false readings will
result.
• Be careful when testing vehicle with Screamin' Eagle air
cleaner assembly. This type of air cleaner has an open
backing plate. Even with air cleaner cover on, directing
nozzle too close to backing plate can give false readings.
LEAK TESTER
TOOL NAMEPART NUMBER
PROPANE ENRICHMENT KITHD-41417
Parts List
• Standard 14 oz. propane cylinder.
• PROPANE ENRICHMENT KIT (Part No. HD-41417).
Tester Assembly
1. See Figure 4-70. Make sure valve knob (6) is closed (fully
clockwise).
2. Screw valve assembly (5) onto propane bottle (1).
Tester Adjustment
1. See Figure 4-70. Press and hold trigger button (8).
2. Slowly open valve knob (6) until pellet in flow gauge (7)
rises to between 5 and 10 SCFH on gauge.
3. Release trigger button.
1. Propane bottle
2. Nozzle
3. Copper tube
4. Hose
5. Valve assembly
6. Valve knob
7. Flow gauge
8. Trigger button
9. Hanger
Figure 4-70. Leak Tester
PROCEDURE
1. Start engine.
2. Warm up engine to operating temperature.
NOTE
Do not direct propane stream toward air cleaner. If propane
enters air cleaner, a false reading will be obtained.
3. See Figure 4-71. Aim nozzle (3) toward possible sources
of leak such as intake manifold mating surfaces.
4. Press and release trigger button (2) to dispense propane.
Tone of engine will change when propane enters source
of leak. Repeat as necessary to detect leak.
5. When test is finished, close valve knob (turn knob fully
clockwise).
2008 Dyna Service: Fuel System 4-37
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