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SECTION 2
2-38
1-/ 2-Cylinder
ANODES - INSPECTION AND
TESTING
Engines are equipped with several sacrificial anodes to help protect
metal parts from the effects of galvanic corrosion (electrolysis).
Disintegration of the anodes indicates they are performing their
function. An anodes must be replaced when it has been reduced to
2/3 its original size (1/3 eroded). Engine corrosion will increase if
eroded anodes are not replaced.
CAUTION
Do not paint or coat anodes or their mounting
surfaces.
External Anodes
Anodes mounted externally on the engine should be inspected every
3 months, or more frequently if the engine is operated in salt or
polluted water.
Inspect the sacrificial trim tab
(1)
for erosion.
Inspect the mid-section or lower unit anode
(2)
for erosion.
Powerhead Anode
The powerhead is protected by an anode mounted in the cylinder head
or cylinder. The anode should be replaced whenever service work
requires removal of the cylinder head, or when a complete overhaul of
the engine is performed.
Installation Test
Use the following procedure to test for proper installation of the anode.
Make sure the surface of the anode is clean before testing.
1. Calibrate an ohmmeter on high ohms scale.
2. Connect one meter lead to a ground on the powerhead and the
other lead to the anode. The ohmmeter should show a Iow reading.
If not, remove the anode and clean the surface where it was
mounted. The anode and its mounting hardware should also be
cleaned. lnstall anode and retest.
1
2
T1977
T1978
Summary of Contents for 2 Stroke Cylinder Series
Page 1: ...PNo 003 21035 1 0509 NB 1000 Printrd in Japan 1 05 8 23 1 33 PM 1...
Page 99: ...SECTION 4 4 18 1 2 Cylinder T2201 16...
Page 103: ...POWERHEAD 4 23 1 2 Cylinder POWERHEAD Typical 1 Cylinder T1676...
Page 104: ...SECTION 4 4 24 1 2 Cylinder Typical 2 Cylinder T1677...
Page 140: ...SECTION 5 5 22 1 2 Cylinder 8 T1620...
Page 162: ...SECTION 6 6 10 1 2 Cylinder GEARCASE Typical Gearcase 2 5 3 5 T1709...
Page 165: ...GEARCASE 6 13 1 2 Cylinder Typical Gearcase 3 5B T1714...
Page 169: ...GEARCASE 6 17 1 2 Cylinder Typical Gearcase 8 9 8 9 9 15 18 25 30 40 T1723...
Page 214: ...SECTION 7 7 22 1 2 Cylinder Ignition System Performance Testing Flow Chart 1 T1557 1...