Service Manual, General Motors 4.3L Engine (TP ... - Kohler Power
Service Manual, General Motors 4.3L Engine (TP ... - Kohler Power
Service Manual, General Motors 4.3L Engine (TP ... - Kohler Power
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6-124 Marine/Industrial <strong>4.3L</strong> <strong>Engine</strong><br />
4. Measure the alignment or surface flatness of the exhaust<br />
manifold flanges using a straight edge and a feeler gauge.<br />
Refer to <strong>Engine</strong> Mechanical Specifications.<br />
If the surface flatness is not within the specifications, the<br />
exhaust manifold is warped and must be replaced.<br />
334528<br />
480571<br />
Water Pump Clean and Inspect<br />
Caution: Refer to Safety Glasses Caution in Cautions and<br />
Notices.<br />
1. Remove all the old gasket material from the water pump<br />
sealing surfaces.<br />
2. Clean all the dirt and any debris from the water pump.<br />
3. Inspect the water pump for the following:<br />
• Leakage or damage to the housing cover or gasket (1)<br />
• Excessive scratches or gouging to the gasket sealing<br />
surfaces (2)<br />
• Leakage from the water pump vent hole (3)<br />
A stain around the vent hole is acceptable. If leakage<br />
occurred (dripping) with the engine operating and the<br />
cooling system pressurized, then replace the water<br />
pump.<br />
• Damaged bolt hole threads (4)<br />
• Excessive side-to-side movement of the water pump<br />
shaft (5)<br />
• Leakage around the water inlet pipe (6)<br />
• Leakage around the heater hose pipe (7)<br />
• Restrictions within the internal coolant passages<br />
2000 Marine/Industrial