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F/N 71537 Oct 07 © 2007 ICS, Blount Inc.
TITLE613GC SERVICE MANUAL
77
27. CRANKCASE LEAKS
27 This section covers testing the
crankcase for leaks. A leak in
the crankcase can cause the
engine not to run.
27.1 Install the intake seal flange.
A Plug cylinder pulse tube.
27. 2 Install the exhaust seal flange.
27.3 Block one of the flange tubes with a
rubber plug.
27.4 Install the pressure gauge and bulb.
27.5 Pressurize the crankcase to 7 psi (0.5
bar).
27.6 If the pressure does not remain the
same, use soapy water to find the
leak.
NOTE: It is recommended that this test
be performed after an engine
rebuild