Small drip/leak after spring startup - 4.3 carburated Mercruiser

fish hook

Petty Officer 3rd Class
Joined
Jul 22, 2011
Messages
94
Got my 04 Tahoe out of storgage Sunday and noticed antifreeze run out of the drain plug when pulling it out of the building. Started it right up but there is a small drip about every 5 seconds port side somewhere under the manifold. Based on a small stain on the bottom of the engine bay it looks like it has been dripping throughout the winter. Of course I'm worried about a freeze/crack situation but I have a reputable dealer winterize each fall and never had any problems. I would think a crack would spray out harder than this small drip. Are there orings or seals that can go bad on any of the dain plugs or anywhere else that may be causing this - maybe they didn't get tight when servicing? Boat has 200hrs on it runs like a champ - didn't leak at all when I took it to the dealer - didn't notice anything prior to storage as I took it straight there from the dealer last November and shut the door until last weekend. Any info on what to check out is appreciated - otherwise I guess it has to go back to the dealer to see what is going on. Thanks
 

tpenfield

Moderator
Staff member
Joined
Jul 18, 2011
Messages
18,137
There is a hose attachment fitting at the lower side of the exhaust manifold. So, maybe start there and see if it is leaking. maybe use your iPhone to get a good look and take a few pictures of the area.
 
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