Volvo Penta 280 rust colored stains

jrmarsh

Seaman Apprentice
Joined
Sep 14, 2011
Messages
39
I’m thinking about buying this boat with a 350 Chevy. One thing is the outdrive has a rust colored stain around it (pictured)
Does anyone know what is causing this? The exhaust maybe? Could it be that the manifold risers are corroded on the inside and are spitting it out?
thanks in advance.
 

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Scott Danforth

Grumpy Vintage Moderator still playing with boats
Staff member
Joined
Jul 23, 2011
Messages
47,297
rusty exhaust water from not using the boat, or from using in salt water and not flushing after use
 

QBhoy

Fleet Admiral
Joined
Mar 10, 2016
Messages
8,286
Looks like fresh water staining to me. Could be wrong.
We get similar stains all over our drives and hulls here on our lake. Caused by the iron content.
 
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