Water coming out of number 6 spark plug

[Bke12345]

Hey all, so again got another question to ask. So I got a 1977 Mercury 150 inline 6 and I got water dripping out of the lower number 6 spark plug. Any know why that is and could it be a bad thing?
thanks

 

[racerone]

There is no cylinder head on that motor.----But there is a water jacket cover with a gasket.----Replace the water jacket gasket.----Or if it is actually blowing out of the sparkplug hole you may have exhaust cover gaskets leaking.

 

[Bke12345]

Thanks for the advice. I really hope it’s the water jacket gasket instead of The exhaust cover

 

[Bke12345]

I’m sure that is the reason why it’s not starting right

 

[GA_Boater]

I’m sure that is the reason why it’s not starting right

Nope, something else. Time to start with the basics - Spark, compression and fresh gas.

 

[Bke12345]

Ga- boater, I am having trouble starting it due to carb issues. To much gas is causing it to flood the engine and it’s coming out of the exhaust vents

 

[Bke12345]

Also while the motor was running I Noticed that water was coming out of the upper exhaust vents. I’m assuming that the exhaust gasket is no good and needs to be replaced. It that a thing for water to come out of that area?

 

[GA_Boater]

Some water and exhaust gas will come out of the idle relief ports - Normal.

Water leaking around a spark plug from the cylinder block cover won't cause bad running. Gas dribbling out a carb will. Either a float is too high or stuck or the needle valve is bad. Go through the carbs again.

 

[Bke12345]

Thanks sir