INSTALLATION PROCEDURES
250 H.O. – 300 HP (3.4 L) COOLING UPDATE KIT, P/N 5007971
Use this kit to update Evinrude E-TEC 250-300HP (3.4 liter) outboards: 2008 models or 2009 “C” or “S” suffix models. Refer to appropriate 2009 parts catalogs and 2009 service manuals for addi tional information. (NOTE: All 2009 “F” suffix 250-300HP models were built with the inner exhaust assembly, P/N 5007973, in this kit and DO NOT require this update kit.)
| P/N | Description | Quantity |
|---|---|---|
| 0334936 | Screw, mount bracket | 4 |
| 0346151 | Clamp, 21 mm | 2 |
| 0349729 | Clamp, 41 mm | 2 |
| 0349759 | Clamp, 31.6 mm (overboard indicator) | |
| 0352335 | Clamp, 33.1 mm (overboard indicator) | Use only ONE (1).Select as required. See text below |
| 0353224 | Gasket, powerhead to exhaust housing | 1 |
| 0354581 | Water tube - 30” model | |
| 0354582 | Water tube - 25” model | |
| 0354583 | Water tube - 20” model | Use only ONE (1).Select for 20”, 25”, or 30” driveshaft. |
| 5007970 | Pressure valve assembly | 1 |
| 5007972 | Water pump kit | 1 |
| 5007973 | Inner exhaust assembly | 1 |
Install inner exhaust housing, P/N 5007973.
Install water tube as required for 20”, 25”, or 30” model.
Install water pump kit, P/N 5007972.
Select and install clamp on the overboard indicator hose. Clamp must be positioned and crimped properly. Clamp must not turn or slide after installed.
- Select and install 31.6 mm clamp on the overboard indicator hose if outside diameter of adaptor tube is 0.925 in. (23.495 mm).
- Select and install 33.1 mm clamp on the overboard indicator hose if outside diameter of adaptor tube is 0.980 in. (24.892 mm).
Install pressure valve, P/N 5007970.
Use Evinrude Diagnostics software to confirm engine management software is current. Update engine management software if needed. Refer
to “Software Replacement” in service manual. Use Evinrude Diagnostics Software to check engine operating temperature. Refer to “Engine Temperature Check” in service manual.
Check engine water pressure at IDLE (500 RPM). Water pressure should be 4 psi (28 kPa) or higher.
