Minor exhaust leak from one side of the block?

[jmo]

Hey Guys,

So I was preping my boat for usage, and after putting the impeller back in and firing her up to make sure everything was working, I noticed that some exhaust appears to coming up from between the block and the exhaust manifold on the port side, its not a lot, but its definitely happening. Does this mean I need to replace the gaskets on the manifolds? Is this straightforward outside of being a bit cramped? How big of an issue is this?

Engine temp was fine, never over 120 while I was running it in the driveway (with a hose supplying the water), seems fine otherwise.

Nautique super sport (2001) with about 320 hours - GT40.

Thanks in advance,

JMO

[WakeSlayer]

You could get a torque wrench and check the bolts for correct torque (check the manual for specs), but you likely need new gaskets. It is not too difficult to do.

[jmo]

Thanks wakeslayer- I fired it up again today to try and isolate exactly where the leak is and now it doesn't happen anymore, I guess I'll just keep an eye on it.

[WakeSlayer]

Is it possible you just spilled a couple drops of oil on there while changing it? Maybe it wasn't exhaust at all.

[jmo]

It's certainly possible it was a bit of oil from removing the filter, but since the smoke/steam/exhaust was coming up on the opposite side of the block I'm less inclined to believe that. Could be some spilt RV anti-freeze dried on the block from winterizing.