305 V8 Exhaust Manifold

Muete

Muete

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I have been given a small task. Get an engine to a 1983 305 V8 Mercruiser started.

While I was looking at the parts I have available, I noticed the bottom of the exhaust manifold a bit clogged...
I have attached some pics of the manifold...Should I have these cleaned out and if not, should the closed areas cause a concern?

Thanks
 
Don S

Don S

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Re: 305 V8 Exhaust Manifold

They are JUNK, replace the manifolds and risers.
 
Bondo

Bondo

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Re: 305 V8 Exhaust Manifold

Ayuh,... Those are Scrap Iron, Not manifolds...
 
Muete

Muete

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Re: 305 V8 Exhaust Manifold

I thank you for re-valuating my though.
 
Muete

Muete

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Re: 305 V8 Exhaust Manifold

Alternate question...

Might these scrap iron hurt the engine so bad the Cylinder #2 would lose compression?

I was given the boat and they said #2 cylinder was bad, but the compete engine is unassembled.

Meuete
 
Bondo

Bondo

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Re: 305 V8 Exhaust Manifold

Muete said:
Alternate question...

Might these scrap iron hurt the engine so bad the Cylinder #2 would lose compression?

I was given the boat and they said #2 cylinder was bad, but the compete engine is unassembled.

Meuete
Click to expand...

Ayuh,... They could well have leaked water into the cylinder, causing the problem, Yes...
 
Don S

Don S

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Re: 305 V8 Exhaust Manifold

If that boat was in salt water (and from the looks of it was) you will be real lucky if the engine turns at all.
 
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