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Rusty exhaust manifold


 
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jerkus730
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Joined: 21 Oct 2015
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PostPosted: Tue Jan 09, 2018 7:41 pm    Post subject: Rusty exhaust manifold Reply to specific post Reply with quote

I'm restoring my dad's WD, does anyone have any suggestions on what to do to a rusty exhaust manifold? I've been told that sandblasting it is'nt the way to go. Also paint suggestions that can take the heat. Any help would be appreciated
 
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old
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Joined: 12 Mar 2000
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Location: Lake of the Ozarks area of MO

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PostPosted: Tue Jan 09, 2018 7:53 pm    Post subject: Re: Rusty exhaust manifold Reply to specific post Reply with quote

That is the nature of a manifold they get hot and get rusty and that is how it is on any machine. No much one can do to stop that and that tis how all my tractors are and always have been
 
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D beatty
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PostPosted: Tue Jan 09, 2018 10:08 pm    Post subject: Re: Rusty exhaust manifold Reply to specific post Reply with quote

You could clean it and use VHT High temp ceramic coating (2000 degrees).If you do use it apply it as directed as you bake it on using heat from engine. I did the muffler( baffled) of my IH 450 5 years ago and it shows no signs of coming off.

 
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Allis Dave
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PostPosted: Wed Jan 10, 2018 5:26 am    Post subject: Re: Rusty exhaust manifold Reply to specific post Reply with quote

I sandblasted and apinted mine about 7 years ago. I taped it all off and painted the intake portions orange and the exhaust portions with high temp black header paint. It's still kinda black but also kinda rusty. Not much you can do other than the suggested ceramic coating. I've never tried that, but you you can buy them coated for cars and trucks.
 
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bg/mo
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PostPosted: Wed Jan 10, 2018 6:39 am    Post subject: Re: Rusty exhaust manifold Reply to specific post Reply with quote

I use john deere muffler paint on mine,,,if you want them black..it holds up pretty good and easy touch up if needed later
 
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Mike Groom
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PostPosted: Wed Jan 10, 2018 9:59 am    Post subject: Re: Rusty exhaust manifold Reply to specific post Reply with quote

I ceramic coated the manifold on my International pick-up about 20 years ago.still looks good.
 
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D beatty
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PostPosted: Wed Jan 10, 2018 1:31 pm    Post subject: Re: Rusty exhaust manifold Reply to specific post Reply with quote

John Deere muffler is good paint but only good for 1,300 degrees but VHT ceramic paint is good to 2,000 degrees and comes in a number of colors.
 
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bg/mo
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PostPosted: Wed Jan 10, 2018 1:55 pm    Post subject: Re: Rusty exhaust manifold Reply to specific post Reply with quote

that might be,,, BUT it has yet to burn off the manifold of my wd 45 that I run square baler with
 
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D beatty
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PostPosted: Wed Jan 10, 2018 2:10 pm    Post subject: Re: Rusty exhaust manifold Reply to specific post Reply with quote

Put your 45 under a heavy load and work it hard and see how long it lasts. The first time I did the IH 450 muffler I used a 1,300 degree high heat paint and put on according to directions and the first pull I made burnt it off body of muffler. The VHT high heat ceramic paint has yet after 5 years showed of burning off.
 
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tractorguy2
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PostPosted: Wed Jan 10, 2018 2:15 pm    Post subject: Re: Rusty exhaust manifold Reply to specific post Reply with quote

I'd just give it a good wire brushing to remove the flakey stuff. Call it good. Painting exhaust manifolds is a waste of time.
 
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bg/mo
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PostPosted: Wed Jan 10, 2018 2:29 pm    Post subject: Re: Rusty exhaust manifold Reply to specific post Reply with quote

I do ,,it been painted two years ,,not saying it right or wrong just another option
 
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David G
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PostPosted: Wed Jan 10, 2018 7:37 pm    Post subject: Re: Rusty exhaust manifold Reply to specific post Reply with quote

I see no reason not to sandblast, then coat with ceramic.
 
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barney stephens
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PostPosted: Sun Jan 14, 2018 5:31 am    Post subject: Re: Rusty exhaust manifold Reply to specific post Reply with quote

I agree with tractorguy2 and old.let ma nature have her way!!
 
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