O-Ring Description And Sizes; Manual Tilt System Cleaning And Inspection; Manual Tilt System Reassembly - Mercury 40 Service Manual

O-Ring Description and Sizes

O-Ring Description
1 Wiper Ring
2 Cyl. Cap, Inner
3 Cyl. Cap
4 Shock Piston
5 Piston Bolt
6 (2) Manifold Split Line
7 Slow Valve
8 (2) Plug
9 Accumulator
10 Lip Seal
11 Cam Shaft
12 Back Up Ring
13 Surge Valve02664)
14 Memory Piston

Manual Tilt System Cleaning and Inspection

1. It is recommended that all O-rings exposed during disassembly be replaced.
2. Clean components, filter, and check valve seats using engine cleaner and compressed
air. Do not use cloth rags.
3. Inspect all machined surfaces for burrs or scoring to assure O-ring longevity.
4. Inspect shock rod. If scraper (located in cap) has failed to keep rod clean, replace
scraper.

Manual Tilt System Reassembly

IMPORTANT: Components must be dirt and lint free. Slightest amount of debris in tilt
system could cause system to malfunction.
Apply Quicksilver Power Trim and Steering Fluid to all O-rings during reassembly. If not
available, use automotive (ATF) automatic transmission fluid.
90-828631R3 MARCH 1999
O-Ring I.D.
0.671 in. (17.04 mm) 0.949 in. (24.10 mm) 0.139 in. (3.53 mm)
1.864 in. (47.34 mm) 2.004 in. (50.90 mm) 0.07 in. (1.78 mm)
1.6 in. (40.64 mm) 2.02 in. (53.086 mm) 0.21 in. (5.334 mm)
0.676 in. (17.17 mm) .816 in. (20.726 mm) 0.07 in. (1.78 mm)
0.208 in. (5.283 mm) 0.348 in. (8.839 mm) 0.07 in. (1.78 mm)
0.114 in. (2.90 mm) 0.254 in. (6.451 mm) 0.07 in. (1.78 mm)
0.489 in. (12.42 mm) 0.629 in. (15.97 mm) 0.07 in. (1.78 mm)
2.114 in. (53.69 mm) 2.254 in. (57.25 mm) 0.07 in. (1.78 mm)
0.301 in. (7.645 mm) 0.441 in. (11.20 mm) 0.07 in. (1.78 mm)
0.301 in. (7.645 mm) 0.441 in. (11.20 mm) 0.07 in. (1.78 mm)
1.6 in. (40.64 mm) 2.02 in. (53.086 mm) 0.21 in. (5.334 mm)
O-Ring O.D. O-Ring Width
MANUAL TILT ASSIST
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