Blown Manifold gasket

[Liberator 6]

All,
The boat was running better than it ever has and we were running at 4k RPM, and then a loud pop and a loud ticking noise from the starboard side of the motor. There were no obvious signs of a cracked metal or anything else, but there was significant exhaust fumes and pressured air coming out between the front and next cylinder. I'll have to check it out in daylight tomorrow, since I limped back to the dock at dusk. (Oil pressure and temp both stayed good). I'm 99% sure I blew out the gasket (dealt with cars with exhaust leaks/ticking) , anyone got any tips?

Thru hull exhaust

 

[firehog6305]

Re: Blown Manifold gasket

do a pressure test, and a compression test

 

[Bondo]

Re: Blown Manifold gasket

Exhaust Gaskets Rarely just Blow Out........

Check for an Exhaust Restriction..........

 

[Liberator 6]

Re: Blown Manifold gasket

Check for an Exhaust Restriction..........

How do you check for exhaust restriction?

 

[Bondo]

Re: Blown Manifold gasket

Look.............

Pull the Risers,+ See if the Flapper Valves are where they Belong.......
If Not,......
Pull the Drive,+ Look there........
Hopefully,....... You won't be Looking at This.......

 

[milkyway]

Re: Blown Manifold gasket

What is that thing blocking the exhaust?

 

[bomar76]

Re: Blown Manifold gasket

What is that thing blocking the exhaust?

ROFLMFAO!!!!!!!!!!!

 

[milkyway]

Re: Blown Manifold gasket

Speak English, please.

 

[Bondo]

Re: Blown Manifold gasket

What is that thing blocking the exhaust?

That's the remnants of an Exhaust Flapper Valve.........