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I have replaced the Water pump with kit 0379744. I have no discharge from exhaust port and the powerhead is running hot. I have tested it in a barrel and in the water with the same result. Looking for some help.
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compression test
I tested the compression and the engine has 105# in both cylinders. I am not getting any water spray from the exhaust port.Comment
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When you replaced the impeller in the water pump, you may not have got the the water line hooked up correctly.I put a little grease on it because I have had the rubber in the impeller housing fold up on me.Check that out. EltonComment
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Byp*** cover problem?
Has anyone had any similar problem with an older Johnson or Evinrude I believe the water pump is fine I am thinking the water flow may be blocked or byp***ing. Any help will be appreciated.Comment
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Blockage or water byp***ing
Has anyone had any similar problem with an older Johnson or Evinrude I believe the water pump is fine I am thinking the water flow may be blocked or byp***ing. Any help will be appreciated. I have taken the pump apart and reinstalled.Comment
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What about the therostat? Yes i have had this problem.Take the water cover off the head,pull the themostat.Leave the cover off and start the motor for a few seconds.Water should pour out the themostat hole. be double sure the intake in the foot is fully submerged.Comment
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Thermostat?
Thanks for the reply. When I look at the Outboard I do not see a Thermostat. The parts diagram does not show a thermostat. This is a 1969 Johnson 33HP.Comment
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I have a1969 18 hp .Mine has a small triangular plate on top of the engine.That is the water cover,the thermostat is under there .Three bolts.Comment
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you are right.The parts diagram does not show one,but my 18 of the same year does.This would be the first one I have ever saw with out one.Let us know.Comment
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Thermostat
The 18HP has a thermostat. The 33 HP does not have a thermostat.Comment
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