920803-0518 Tohatsu SCREW

Illustration 1 g00882677
(Y) "ADD" mark. (X) "FULL" mark. (Z) "Effective Length".
(Z-LH Service Engines) 642 mm (25.3 inch)
(Z-RH Service Engines) 479 mm (18.9 inch) The engine is shipped with an engine oil level gauge that is not marked. The engine oil level gauge is not marked because the angle of the installation and the side for servicing the engine oil can be different for each engine. The angle of the installation and the side for servicing the engine oil will affect "ADD" mark (Y) and "FULL" mark (X) that is engraved on the engine oil level gauge.The engine oil level gauge should be calibrated after the engine is installed in the vessel. Use the following procedure in order to verify that "ADD" mark (Y) is correct. Use the following procedure in order to establish actual "FULL" mark (X) on the engine oil level gauge. Refer to table 1 and table 2 in order to determine the location for the "ADD" and "FULL" marks for a particular installation.
Refer to the Operation and Maintenance Manual for more information on lubricant specifications.
Operate the engine until normal operating temperature is achieved. Stop the engine. Remove one of the drain plugs for the engine crankcase. Allow the engine oil to drain.
Remove the used engine oil filter. Install the new engine oil filter. Install the drain plug for the engine crankcase. Tighten the drain plug for the engine crankcase to 70 14 N m (50 10 lb ft). Note: The engine may be equipped with auxiliary engine oil filters. Volumes that are different from the standard amounts may be required. Refer to the OEM specifications.
Pour 20.8 L (22 qt) of engine oil into the engine crankcase. Allow enough time for the engine oil to drain into the engine crankcase. Approximately 20 minutes should be allowed. Check the engine oil level. Wait for a few minutes. Check the engine oil level again. Proceed after the engine oil level stops changing.
Mark the engine oil level on the engine oil level gauge. Use a marking pen in order to engrave "ADD" mark (Y).
Pour 3.8 L (4 qt) of engine oil into the engine crankcase. Allow enough time for the engine oil to drain into the engine crankcase.
Mark the engine oil level on the engine oil level gauge. Use a marking pen in order to engrave "FULL" mark (X).
Start the engine. Ensure that the lubrication system is filled. Inspect the lubrication system for leaks.
Stop the engine and allow enough time for the engine oil to drain into the engine crankcase.
Check the engine oil level on the engine oil level gauge. If the engine oil level is not at calibrated "FULL" mark (X), fill the sump to the calibrated "FULL" mark. Record the amount of oil that is added. This additional engine oil is the system capacity plus the engine oil in the sump. This additional engine oil is the amount of engine oil that is required when the engine oil is changed. Record the engine oil capacity for the system for future changes of the engine oil. 3176C and 3196 Marine Engine Dipstick MarkingsNote: Use the following tables if these conditions exist:
The engine is installed with a 0 degree slant angle.
No auxiliary engine oil filters are used on the engine.
Table 1
3176C and 3196 Marine Engine
Oil Gauge Markings (mm)
LH Service (1)
Tilt Angle(2) LH Service
"ADD" Mark
Y LH Service
"FULL" Mark
X
-15° 120 mm (4.7 inch) 133 mm (5.2 inch)
-13° 113 mm (4.4 inch) 125 mm (4.9 inch)
-11° 110 mm (4.3 inch) 124 mm (4.9 inch)
-9° 106 mm (4.2 inch) 118 mm (4.6 inch)
-7° 100 mm (3.9 inch) 110 mm (4.3 inch)
-5° 93 mm (3.7 inch) 106 mm (4.2 inch)
-3° 87 mm (3.4 inch) 99 mm (3.9 inch)
-1° 82 mm (3.2 inch) 93 mm (3.7 inch)
0° 79 mm (3.1 inch) 89 mm (3.5 inch)
1° 73 mm (2.9 inch) 85 mm (3.3 inch)
3° 68 mm (2.7 inch) 81 mm (3.2 inch)
5° 63 mm (2.5 inch) 74 mm (2.9 inch)
7° 54 mm (2.1 inch) 67 mm (2.6 inch)
9° 47 mm (1.9 inch) 61 mm (2.4 inch)
11° 38 mm (1.5 inch) 52 mm (2.0 inch)
13° 30 mm (1.2 inch) 43 mm (1.7 inch)
15° 19 mm (0.7 inch) 36 mm (1.4 inch)
(1) (Z-LH Service Engines) 642 mm (25.3 inch).
(2) The tilt angles in this chart are the engine installation angles for the vessel. A positive angle indicates that the front of the engine is raised.
Table 2
3176C and 3196 Marine Engine
Oil Gauge Markings (mm)
RH Service (1)
Tilt Angle(2) RH Service
"ADD" Mark
Y RH Service
"FULL" Mark
X