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Engine Lubricating System
Page 9B-10
Base Engine Components
DODGETurbo Diesel
The seal is designed to provide increased sealing as the pump
case pressure increases. Pressure forces the lip (1) tighter
around the shaft.
A worn seal is more apt to leak during start up and shut down
when case pressure is low.
Caution: A worn seal can not be detected by pressurizing
the pump with normal operating pressure. By Increasing
the pressure In the pump, the sealing force will also be
increased.
The bushing (2) in the Bosch V E pump can cause a seal leak.
If the bushing is loose in the housing it will move toward the
seal raising the lip (1) and providing a leak path for fuel.
To check for such a leak (Bosch V E only), remove the fuel
drain manifold connection (1) at the pump and install a plug
(2).
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Table of Contents
Troubleshooting
