Cast Iron Elbows With 6 Inch Riser - Mercury MerCruiser MCM 454 Mag MPI Service Manual

SERVICE MANUAL NUMBER 23

Cast Iron Elbows With 6 Inch Riser

NOTE: Later models will have an open gasket (four slots) instead of a restrictor gasket (two
slots and two holes). If replacing gaskets, it is acceptable to replace the old gaskets with the
open gaskets. Be sure that the same type of gasket is used on both manifolds.
Index
90-861326--1 MARCH 1999
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k
a - Exhaust Elbow 4 In. (101 mm)
b - Restrictor Gasket
c - Exhaust Riser 6 In. (152 mm)
d - Open Gasket (4 Slots)
e - Bolt (8) 6 In. (152 mm) or
Bolt (2) 7 In. (178 mm) (Used Only at Remote Oil Filter Bracket if Equipped)
f - Hex Head Screw (4) 1 In. (25 mm)
g - Exhaust Manifold
h - Drop-Down Bracket (1)
i - Washers (6)
j - Screws (6) 1/2 In. (12 mm)
k - Refer To Note Following
e
a
b
h
f
c
d
g
i
j
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