TOHATSU NB-1000 Service Manual page 141

Cleaning and Inspection
All worn, damaged, or missing parts must be replaced.
1. Before cleaning, examine the following rubber parts as applicable
and remove if damaged, dry, or brittle:
• Lower cover grommets and seal ring
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• Lower engine cover seal (1)
• Water pipe seal (2) locking rubber (3), and rubber set ring (4)
Use super bond adhesive to install new rubber parts as needed on
metal surfaces. Make sure metal surfaces are clean and dry before
installation of rubber parts.
2. Thoroughly clean all parts including fasteners with solvent and
dry with low pressure compressed air. Verify all carbon deposits,
gasket adhesives, and threadlocker residue have been removed.
3. Inspect water pipe (5) for kinks or obstruction. Replace as
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needed.
4. Inspect exhaust pipe (6), engine base (7), and driveshaft
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housing (8) for cracks, chips, dents or other damage.
5. Examine the upper and lower rubber mount components
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for damage or signs of deterioration. Replace as needed.
Assembly
1. Verify aIl new rubber replacement parts have been installed on
components as needed.
2. Position engine base with powerhead side facing down.
3. Mount new exhaust pipe gasket (2) on engine base (1).
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Apply high temperature gasket dressing to both sides of
gasket.
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4. Install exhaust pipe.
5. Apply genuine grease or equivalent friction surface marine
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grease to water pipe seal (3).
1-/ 2-Cylinder
MIDSECTION
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T1278
T1621
T1622
T1623
5-23