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Cat30 Exhaust riser blew up - Engine won''''t start

Hi everyone,

I am curious if anyone could give me some advice, here is the situation to date

Exhaust elbow blew up/engine won''t start
Submitted by Rick of Massachusetts on 07/15 at 06:56AM regarding Catalina 30.

Yesterday we found that our exhaust elbow leading from our Atomic 4 (gas) to the water lift was corroded beyond use when it blew up and started spraying water into the engine compartment. We turned the engine off and then restarted it. The engine started fine but the water was spraying out of a quarter sized hole. We immediatly stopped the enginge and wrapped a rag and duct tape around it so we could get back to the mooring. Needless to say, the engine now would not start. Today will be spent locating fixit supplies for the pipe. Does anyone have any ideas why the engine wouldn''t start? My main concern is that water has a way to back into the engine. Please allay my fear of a rebuild.

Any ideas?

It still won''t start...
Submitted by Rick on 07/23 at 07:54AM regarding General_interest.
OK, I spent the weekend trying to get my A4 started again. I can''t.

I am sure it is something very small that I am overlooking. Here''s what I did. Drained the aqualift by taking out the screw in the bottom. Got all the exhaust pipe I needed and installed it. Cranked the engine. Nothing.

In fact, water again backed up the exhaust pipe at least to the exhaust manifold. When I crank the motor no water exits the exhaust out the back. Can a muffler get clogged with corrosion from a bad pipe? If so how can I get it unclogged?

I have spark. I have compression. There is at least some gas as I can smell it once it floods and also when I take out a spark plug. I have tried cranking with the water intake closed and open. I have taken the exhaust pipe off the manifold and tried again. I do get vapor that smells like gas out the manifold in that case. I tried all of this until the batteries discharged.

What am I missing?

No-going saga of Exhaust riser blow up
Submitted by Rick of Salem on 07/31 at 07:18AM regarding General_interest.
OK heres what happened this weekend. I installed new plugs and did everything everyone has suggested. When it came time to crank the engine the batteries where of course dead. No problem I used the portable battery I got for just such a day. When I hooked it up (positive to positive, negative to negative) just like I had it the weekend before and cranked the engine,CLICK. No starter except for the first click of it engaging. To make things worse SMOKE coming off the starter wire and the plastic on the battery terminal was melting. When I turn the power off at the main the starter again makes a sound. Mind you, this is exactly the same set up I had the week before when it cranked over just fine but didn''t start. I suspect the lack of battery allowed the solenoid to switch but wasn''t enough to turn the engine.

Of course at this point the First Mate insisted that a call to a mechanic was neccesary. Today I got the call back. He wants me to realize that I need a new engine! Something in diesel at $5000.00.

Does the story so far sound like a wrecked engine? Has anyone ever got water back from the muffler and lived to tell?
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