Alpha One Gen II, unknown part

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carlmalm

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This piece that I'm holding, fell out when I took of my lower unit. Do anyone know what part it is?
I believe my stern drive is from 1999.
 

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Fun Times

Fun Times

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carlmalm said:
Great! Thanks. I'm not back by my boat until two weeks from now. Let me get back to you regarding serial number then.
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What's the general info of the engine? year, model, engine displacement, etc.?
 
Fun Times

Fun Times

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carlmalm said:
The only info I can give you right now, is 1999, and Mercruiser 3.0 gasoline...
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Gotcha! And yes in your case the engine serial number is best to have/know as you're right around engine type component design changes even though the first parts link as used for an example above would fit your engine exhaust system... But please do find your engine/stern drive/transom assemblies serial numbers and input them into the serial number search at the top right corner of the parts link above to find your OEM parts catalog info.
 
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havoc_squad

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You need to take off the necessary exhaust manifold hardware that allows inspection of the Y pipe that connects to the transom assembly.

Might be able to just remove the rubber hose joint but might require more removal for access.

The exhaust shutters are in the top of the Y pipe to prevent a large influx of sudden water flow flooding into the engine.

Since you found parts of it, you need to inspect for more broken parts in the Y pipe and replace missing/damaged exhaust shutters.
 
Bondo

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havoc_squad said:
You need to take off the necessary exhaust manifold hardware that allows inspection of the Y pipe that connects to the transom assembly.

Might be able to just remove the rubber hose joint but might require more removal for access.

The exhaust shutters are in the top of the Y pipe to prevent a large influx of sudden water flow flooding into the engine.

Since you found parts of it, you need to inspect for more broken parts in the Y pipe and replace missing/damaged exhaust shutters.
Click to expand...
Ayuh,..... That's Right,..... except the 3.0l has just a down-pipe, not a y-pipe,.....
 
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carlmalm

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Bondo said:
Ayuh,..... That's Right,..... except the 3.0l has just a down-pipe, not a y-pipe,.....
Click to expand...
Thanks Bondo & havoc!
Any idé of what the part number of the shutter is? They differ from different year models I guess?
 
Scott Danforth

Scott Danforth

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carlmalm said:
Thanks Bondo & havoc!
Any idé of what the part number of the shutter is? They differ from different year models I guess?
Click to expand...
do a parts search for the proper flappers per your serial number
 
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carlmalm

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Scott Danforth said:
do a parts search for the proper flappers per your serial number
Click to expand...
Thanks! But, where do I find a good site for that? The ones I've tried only shoes writings of transom parts... Can't find a picture of the exhaust part, where the flapper is located...
 
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havoc_squad

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Bondo said:
Ayuh,..... That's Right,..... except the 3.0l has just a down-pipe, not a y-pipe,.....
Click to expand...
Seen too many recent V6 and V8 threads so I probably seen a mirage of them on this thread when the engine model wasn't on the initial post.

I should know, my previous boat also had an early Gen2 3.0L in it.

Since then I've defected to owning an outboard equipped boat.
 
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