Mercury MerCruiser GM V8 GM V8 454 CID 7.4L and 502 cid 8.2L Marine Engines Service Manual Number 23

CLOSED COOLED (FRESH WATER) MODELS
SERVICE MANUAL NUMBER 23
Thermostat
Removal
NOTE: If coolant flow is restricted or fails to occur, a wire should be repeatedly inserted into
all drain holes to ensure there are no obstructions in passages. Remove petcock, if neces-
sary, to insert wire completely into drain hole.
1.
Drain engine block by  removing drain plug. Be sure  to drain both port and starboard
sides.
74130
a
Starboard Side Shown (Port Side Similar)
a  - Hose
b  - Drain Plug In Exhaust Manifold Elbow
2.
3.
Disconnect hoses from thermostat cover.
Remove thermostat  cover attaching bolts  and lockwashers, then  remove cover and
gasket.
4.
Remove thermostat from thermostat housing.
a
b
c
75746
d
a  - Thermostat Housing
b  - Thermostat
c  - Gasket
d  - Thermostat Housing Cover
Page 6B-10
90-861326--1   MARCH 1999
Product Specification
CategoriesMercury MerCruiser Manuals
Tags,
Model Year1998, 1999, 2000, 2001
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- 1027 pages
Document File TypePDF
CopyrightAttribution Non-commercial
(1 votes, average: 5 out of 5)
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Mercury MerCruiser GM V8 GM V8 454 CID 7.4L and 502 cid 8.2L Marine Engines Service Manual Number 23 SKU UPC Model
Matt on Apr 08, 2015.

Just need the manual. Wrote review. Can't technically review what I haven't seen yet...

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