The fuel pressurized as the cam rotates on flows through the check valve on the outlet side as
shown in (B). If the feeding pressure increases abnormally, the spring is compressed, resulting in
interrupting further delivery of fuel as shown in (C).
This feed pump is mounted with a priming pump designed to permit manual feeding of fuel from
the fuel tank with the injection pump mounted in the engine. During the manual feeding operation,
air must be bled from the fuel lines.
When using the priming pump, fix it securely to prevent the possible entry of moisture or other for-
eign substances in the inside of feed pump.
In addition, a strainer is fitted into joint bolt on the inlet side of the fuel feed pump to filtrate any for-
eign substances possibly mixed in fuel.
2) Disassembly
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MAINTENANCE OF MAJOR COMPONENTS
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