RISERS
SERVICE MANUAL NUMBER 23
Cast Iron Elbows With 6 Inch Riser and Mufflers
f
a
j
l
h
i
k
b
d
e
c
d
g
70481
a - Exhaust Elbow 4 In. (101 mm)
b - Muffler Spacer 1-1/4 In. (32 mm)
c - Exhaust Riser 6 In. (152 mm)
d - Open Gasket (4 Slots)
e - Hex Head Screw (4) 1 In. (25 mm)
f - Bolt (8) 7 In. (178 mm) or
Bolt (2) 8 In. (203 mm) (Used Only at Remote Oil Filter Bracket if So Equipped)
g - Exhaust Manifold
h - Drop-Down Bracket (1)
i - Restrictor Gasket
j - Washers (6)
k - Screws (6) 1/2 In. (12 mm)
l - Refer To Note Following
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
Page 7C-8
90-861326--1 MARCH 1999
| Categories | Mercury MerCruiser Manuals |
|---|---|
| Tags | Mercury MerCruiser 454 CID, Mercury MerCruiser 502 CID |
| Model Year | 1998, 1999, 2000, 2001 |
| Download File |
|
| Document File Type | |
| Copyright | Attribution Non-commercial |
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Marine readers have rated Mercury MerCruiser GM V8 GM V8 454 CID 7.4L and 502 cid 8.2L Marine Engines Service Manual Number 23 5.0 out of 5.0 based on 1 product reviews. Just need the manual. Wrote review. Can't technically review what I haven't seen yet...