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oh snap's Avatar
 
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Would this manifold rust would be a problem?

it could just be brushed or blasted off right? looks like its just surface only but since its the mating surface i figured I would ask the experts before I spend some money.



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Old 02-19-2014, 11:42 PM
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You'd have to take heaps of metal off to use those. No difficult but you have to get the surfaces flat.

I guess it comes down to, How hard is it to find 993 clams in good condition second hand?
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Old 02-19-2014, 11:52 PM
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not that hard, but this one is around a 3rd the price a good one is. I thought if it could be spruced up with a media blast it might be worth it. If they need something more than that I probably wont bother. Do you think its not worth the effort?
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Old 02-20-2014, 12:11 AM
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Basically my my thinking is you can get a decent used set of these for 500 if youre lucky, but its been a while since Ive seen any that cheap. Then I'll pay to clean then up a bit and cut and reweld one side of the manifolds so they match up to a 3.2. If I get this manifold for 100 and another not quite as rough one I see on sale for 250ish I think I could come away from it all for 500. On the other hand if its more trouble than its worth for $150-$250 savings I'll just try to get lucky with a nicer set.
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Old 02-20-2014, 12:33 AM
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Just wire wheel them and see what they look like. Isn't there a gasket also used on these?
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Old 02-20-2014, 04:13 AM
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To my eye, that's simple surface rust and will clean up nicely with a wire brush. It doesn't appear to me as bad as Peter suggests. If you see signs caking rust, you'll have to find a way to resurface or replace all the flanges.
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Old 02-20-2014, 05:14 AM
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Agree it's surface rust. A wire wheel will make them look like new. The gasket will make sure they won't leak. I think they are fine
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How about a NoBadDays DualChip for 964 or '95 993
Old 02-20-2014, 05:30 AM
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I'd hit this with a flap disc to smooth it out and use it. Would take 5 minutes, no more.
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Old 02-20-2014, 05:49 AM
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After wire-brushing, would you recommend some sort of hi-temp paint to prevent this happening again?
Old 02-20-2014, 08:55 AM
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i would use sandpaper on something hard and flat to keep the surface flat.
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Old 02-20-2014, 10:23 AM
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I nice new gasket will exclude air and moisture so I wouldn't use paint.
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Old 02-20-2014, 10:37 AM
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I'm thinking belt sander with 80 grit would make those as good as new...
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Old 02-20-2014, 11:43 AM
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blast or wire wheel it and your good to go. dont paint it . they only got rusty from sitting around off of the car. once they are back on the gasket will keep away the moisture
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Old 02-20-2014, 12:29 PM
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thanks everyone. ill go ahead with them and try using a brush wheel

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Old 02-20-2014, 02:22 PM
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