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Hi,
Yesterday, I noticed water sputtering out of the exhaust manifold on my 2001 250hp OX66 right after I started the engine. It seemed to stop after I had run the boat for a short while.
I'm guessing that one of the thermostats is stuck open, allowing water into the jacket before the engine heats up Does this sound right? If so,
-- what would I be looking for (debris, corrosion, etc.) as the cause of the problem?
-- Can I get at the thermostats w/o removing the flywheel cover?
-- Is it a mandatory gasket replacement if I remove them? The reason I ask is that my closest Yamaha dealer isn't all that close.
-- Do I also have to disassemble the pressure control valve assembly?
Thanks in advance for your help.
Yesterday, I noticed water sputtering out of the exhaust manifold on my 2001 250hp OX66 right after I started the engine. It seemed to stop after I had run the boat for a short while.
I'm guessing that one of the thermostats is stuck open, allowing water into the jacket before the engine heats up Does this sound right? If so,
-- what would I be looking for (debris, corrosion, etc.) as the cause of the problem?
-- Can I get at the thermostats w/o removing the flywheel cover?
-- Is it a mandatory gasket replacement if I remove them? The reason I ask is that my closest Yamaha dealer isn't all that close.
-- Do I also have to disassemble the pressure control valve assembly?
Thanks in advance for your help.