ENSTROM F-28F/280F SERIES MAINTENANCE MANUAL
Rev.
7
MM-13-20
Aug
22/16
C. Exhaust Manifold – Inspection
Upon removal of the complete exhaust system, check the flange mounting of each
exhaust stack for cracks, distortion of the flange and proper gaskets.
WARNING:
At the 100-hour inspection it will be necessary to remove the cabin
heat exchanger cover to inspect for any cracks internally which could
allow carbon monoxide to enter the cabin through the heating system.
D. Exhaust Manifold – Installation (See Fig. 13-3)
(1) Assemble the muffler cuff.
(2)
Install the right side manifold section with new gaskets and hardware. DO NOT
TORQUE.
(3)
Insert heater muff sleeve on left half of manifold, over right side manifold.
(4)
Install left side manifold section to engine with new gaskets and hardware. DO
NOT TORQUE.
(5)
Connect exhaust manifold to turbocharger inlet (3).
(a)
Install new gasket.
(b)
Slide collar up and rotate for proper alignment.
(c)
Install turbocharger inlet clamp.
(6)
Install wastegate assembly (6).
(7)
Install exhaust outlet, shims, and clamp (5).
(8)
Check all attachment points for alignment.
(9)
Torque turbocharger clamps and manifold nuts to 80-90 in-lbs.
(10) Safety wire turbocharger clamps.
(11) Install EGT probe (1).
(12) Install heater muff ducting (2).
(13) Connect wastegate linkage (4).
(14) Run engine and check for possible exhaust leaks.
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