cracked exhaust manifold

kskogland

Recruit
Joined
Jul 15, 2007
Messages
1
I have a cracked exhaust manifold on my Volvo 3.0GLP-A. It is on the bottom between the plug and the water drain. It runs about 6-8". I knew that there could be a potential problem due to improper winterizing. I discovered the crack after running the engine (with a hose connected to the engine flush) for about 1 minute. This was the first time after the winter. I inspected the engine and immediately found water leaking from the manifold. I purchased a small mirror, ran the engine for 30 seconds, and then inspected the damage. The water that first came out was rusty. One of the nuts / bolts on the end of the manifold is rusty.

I know I'm screwed, but would appreciate some insight on what happens next. What parts of the engine can water stand in when stored (obviously the manifold is one)? I would assume the Cylinder block is another, based on forum posts. Can I replace just the manifold and run a diagnostic to determine if other damage exists? Should I just have all potentially damaged parts replaced? If yes, by whom and what kind of expense am I looking at? Are there any web sites that can give me more extensive information about the operation of marine I/O engines and their cooling.

Thank you, in advance, to all of you who reply and share some of your knowledge with someone who really needs it.
 

Bondo

Moderator
Staff member
Joined
Apr 17, 2002
Messages
71,444
Re: cracked exhaust manifold

Can I replace just the manifold and run a diagnostic to determine if other damage exists?

Before you go Spending money on a Dead Horse,........

Block off All the Water Ports on the motor,+ Pressurize it with Air........
If the Block is Cracked,....... You'll Hear it,+ can identify Where it's Leaking.........
 
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