Evinrude & Johnson E75DPLSCB, Service Manual, Page: 244 / 349

242
MIDSECTION
EXHAUST HOUSING
Remove the four screws securing the exhaust
megaphone to the adapter housing.
Remove the lower mount assemblies as neces-
sary. Lubricate with soapy water and carefully pry
at both ends.
Cleaning and Inspection
Clean all parts with parts cleaning solvent and dry
with compressed air. All nut and screw threads
coated with thread locking material must be thor-
oughly cleaned before assembly. When using a
thread locking product, be sure to prime the
threads with
Locquic Primer .
Examine the upper and lower thrust mounts, and
replace if deteriorated or damaged.
Before checking the exhaust housing for distor-
tion, thoroughly clean the top and bottom mating
surfaces and remove all sealer and corrosion.
Check the exhaust housing for distortion. Place
the housing on a surface plate. Use a dial indica-
tor to check flatness by measuring the run-out on
the top edge of housing. The maximum allowable
run-out is 0.009 in. (0.228 mm). If you do not have
access to a dial indicator and surface plate, seek
the services of a machine shop. DO NOT attempt
to straighten a distorted housing; replace it.
IMPORTANT:
A distorted exhaust housing will
cause the upper driveshaft splines to wear exces-
sively and will damage the crankshaft splines.
Inspect the water tube for obstructions or kinks,
which may restrict water flow.
Exhaust Housing Assembly
Place a new gasket between the exhaust mega-
phone and adapter housing. Apply
Ultra Lock to
the threads of the screws and tighten to a torque
of 60 to 84 in. lbs. (7 to 9.5 N·m).
1. Adapter to megaphone screws
2. Exhaust megaphone
001976
WARNING
Wear safety glasses to avoid personal
injury, and set compressed air to less than
25 psi (172 kPa).
1
1
2
DR2223
1. Adapter to megaphone screws
2. Exhaust megaphone
001976
1
1
2