water in 4 cyls

[cbootes]

I have a 2002 powerquest 6.2 liter silent choice exhaust after running the boat for half hour the boat sits for 4 hours. Water fills the even side cylinders. After pulling the plugs the engine will run any ideas it only has 175 hours Thanks

 

[95yj]

Re: water in 4 cyls

Check your exhaust manifold and riser.

 

[180shabah]

Re: water in 4 cyls

Yup, one of them is leaking. Find it, then replace everything, Manifolds and risers / port and starboard.

Are you in fresh or salt water?

 

[sea wolf]

Re: water in 4 cyls

Let's ask Don. He's the resident "expert".

 

[wire2]

Re: water in 4 cyls

Does the exhaust slope down to the silent choice butterfly?
If you run "quiet", shut the engine off, then open the transom pipes, does water flow out?

 

[Bt Doctur]

Re: water in 4 cyls

Did you recently have a overheat? you may have cracked a manifold or riser or both.remove the cooling hoses to the suspected manifold and kink them, turn on water, run engine NO MORE than 2 minutes, let stand 15 minutes, pull plugs.
water in cylinders- head, head gasket, cracked block
no water in cyl.- cracked manifold/riser