1990 3.0 cobra leaks water

cajun1957a

Cadet
Joined
Sep 4, 2005
Messages
24
As the title implies, i have a leak what appears to be under the manifold under the carb. Leaks good but the bilge keeps up with it so i wasnt aware untill i just found out. Any ideas what it could be? Frost plug, water manifold gasket etc? Chev motor. Runs great but i would think this thing will leak a half gallon a min running. Help. What do i look for?

randy
 

Scott Danforth

Grumpy Vintage Moderator still playing with boats
Staff member
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Jul 23, 2011
Messages
50,338
cracked block or manifold from improper winterization would be my first guess.
 

cajun1957a

Cadet
Joined
Sep 4, 2005
Messages
24
Im hoping a manifold. No water in the oil. Motor runs solid and idles perfect. I bought this boat about three weeks ago. When i had ears on it and running it there was no water leaking but today there was . I would think if it was the block it would leak when i first got it not three weeks later. How big a deal is it to pull the manifold and if its the block can it be fixed

Randy
 

Scott Danforth

Grumpy Vintage Moderator still playing with boats
Staff member
Joined
Jul 23, 2011
Messages
50,338
Bolts hold the manifold in place

New motor repairs busted block
 
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