MRWood
Well-Known Member
Not yet. I have the boat in at the shop to get the kicker all tuned up. They are going to do a pressure test to see if I have a head gasket issue. Should know more today.Any luck of finding the issue?
Not yet. I have the boat in at the shop to get the kicker all tuned up. They are going to do a pressure test to see if I have a head gasket issue. Should know more today.Any luck of finding the issue?
I did get the pressure test done on the cooling system. It held pressure ato 14psi. Could it still be a head gasket if the system is holding 14psi.You may have to pressure test with shop air in a bucket of soapy water.
Just for future reference a quick head gasket check is to put the expansion tube in a half full bottle of water and look for bubbles when everything is warmed up. Bubbles are telling you the coolant is being pressurized by combustion pressure. A weak rad cap could give false readings though so make sure it's new.
Not likely but the bubble test is a easy check.I did get the pressure test done on the cooling system. It held pressure ato 14psi. Could it still be a head gasket if the system is holding 14psi.
No it doesn't have a composite intake. No vortec. The pressure test would have detected any intake manifold gasket leak would it not.Not likely but the bubble test is a easy check.
Does this have a composite intake manifold? If so the vortec engines are known to have bad intake gaskets and it could be that too.
Not always. Hot engine might leak and cold not.No it doesn't have a composite intake. No vortec. The pressure test would have detected any intake manifold gasket leak would it not.
marine fuel pumps have a hose to the carb if the seal failsMaybe it's gas going into the oil. How's the fuel pump seal if it's mechanical?
in the pictures they are both raw water cooledOk MRWood let's check the manifolds and risers another way.
I'm assuming the riser is raw water cooled and the manifold is antifreeze cooled.
Reassemble the riser and manifold you took off with a new gasket. With the antifreeze drained, hook the muffs to the leg and turn the hose on full. Remove all your spark plugs, crank the engine over (with the ign wire off the coil). While cranking if water is coming out the plug holes you know it's the risers or gaskets.
So if no water comes out, fill the anifreeze and re test.
If no water or coolant comes out after filling antifreeze well call em good.