255
Midsection
Exhaust Housing, 3-Cylinder Models
11
Remove the three upper screws and three lower
screws securing the inner exhaust housing to the
adapter housing.
Remove the water tube from the inner exhaust
housing. Discard water tube grommet.
Remove the seal from the bottom flange of the
inner exhaust housing.
Remove the four screws securing the exhaust
megaphone to the adapter housing.
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.
1. Upper inner exhaust housing screws
001975
1. Lower inner exhaust housing screws
001974
1. Water tube grommet
001984
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).
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