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Section 5A
LPG Fuel Systems
Vaporizer Assembly
The outer surface of the vaporizer should be kept free
of dirt and debris accumulation, which will cause a
loss of vaporization efficiency. Visual inspection and
necessary cleaning should be performed on a regular
basis, more frequently under dusty or dirty
conditions. The vaporizer should be disassembled,
cleaned, and serviced using a rebuild kit every 1500
hours or if a problem is encountered.
Figure 5A-18. Impco (Beam) Regulator.
5A
Figure 5A-17.
LPG Regulator
The regulator controls both the pressure and flow of
fuel within the LP system. It is comprised of both a
primary and secondary chamber, which are dependent
upon one another. Two different styles of regulators
are used, based upon the system involved. The Impco
(Beam) regulator is shown in Figure 5A-18, and the
Nikki regulator is shown in Figure 5A-19. Although
the basic design and operating principles are similar,
due to system differences the regulators should not be
interchanged.
Figure 5A-19. Nikki Regulator.
Following are separate sections covering the theory of
operation and general service information for each
style of regulator. Detailed service/repair instructions
are included in the rebuild kit for each regulator.
5A.9