alumnium head exhaust port

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Well I thought it would be an easy fix , just a simple exhaust manifold gasket,,, NOT,,, I popped off the manifold that was the easy part, come to find out the rear port on the alumnium head had worn out partially around the surface where the gasket goes. I hope it can be welded then a new surface put on it. I'd hate to go out and buy a new head for aq125a that could be hard to find.
I'm kind of bummed out now ,but I know some great welders.
The joy's of owning an old boat. If any one has any ideas all would be welcome.
The thought of buying that new TRIUMPH 21'cc sound's even better now. but must repair this one first.
later M . LINK

[JohnR]

Link - what base engine is it? Volvo doesn't really make heads or marine engines, they typically use base GM engines so a head will suck to do but it shouldn't be hard to find one...

OK - maybe they do make a couple base marine engines - check with this guy on ebay Gizzmoid@adelphia.net and do a seach on that engine with Ebay - he might have something - also do a google search on that engine - there are some things out there.

And check this link too: http://www.customengine.com/classifi...s/00001b55.htm - lots of stuff out there if you look...

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John R thank's for the info , it's one of the only volvo penta all marine engines 4 cyl AQ125A- fwc - no after market part's.
I have e-mails ont the way to the link's you suggested!
thank's again LINK

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heads off getting welded, everytinng look's fine internally, part's on order ,in water one week hopfully, are there any fish left?