Coolant Recovery Tank; How To Bleed The Fuel System; Figure 8: Engine Coolant Recovery Tank - Westerbeke 15.0 MEG-60Hz Operator's Manual

4 Startup and Basic Operation
4.5

Coolant Recovery Tank

A coolant recovery tank kit is supplied with each generator to allow for engine coolant expansion and
contraction during engine operation without the loss of coolant and without introducing air into the cooling
system. This tank is best located at or above the level of the engine exhaust manifold.
4.6

How to Bleed the Fuel System

The initial setup of the generator requires that you or your mechanic bleed the air from the fuel system. This
procedure, known as priming or bleeding the fuel system, is also required whenever the fuel filters are serviced.
1. Disconnect the fuel module from the engine wiring harness.
2. Attach your fuel pressure gauge set (Snap On #MT337B, OTC 7211) or equivalent to the Schrader valve on
the fuel module. Direct the bleed hose from the pressure gauge into a proper container.
3. Open the bleed valve on the pressure gauge, press the STOP switch, and hold it depressed. This activates the
low-pressure fuel pump.
4. Observe the fuel flow through the bleed hose. When no air bubbles are seen, close the bleed valve and
observe the fuel pressure (typically about 3-5 psi).
5. Remove the pressure gauge from the fuel module and connect it to the Schrader valve on the fuel rail.
6. Re-connect the fuel module to the engine harness.
7. Open the bleed valve on the fuel pressure gauge. Press the STOP switch and hold it depressed. This activates
both the low-pressure and high-pressure fuel pumps. Observe the fuel flow through the bleed hose and
when no air bubbles are seen, close the bleed valve and observe the fuel pressure. The pressure should be in
the 40-psi range.
8. Remove the pressure gauge set and replace the caps on the two Schrader valves.
9. Ensure that all harness connections are secure, operate the generator and check that there are no fuel leaks.
WARNING: The fuel is under extreme pressure! Do not allow any smoking or open flames in the area! Clean up spilled
fuel and properly discard any used cloths, rags, and towels.
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Figure 8: Engine Coolant Recovery Tank

Operator Manual for Gasoline Generators