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Old 01-13-2018, 12:29 PM
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Default Manifold protection? add life to used y-pipe

Any suggestions for how to prolong life on a used Y-pipe? I know this is snowmobile tech but not sure that makes a difference... I had to scour the world to find this part without a crack. I have it now, but was thinking before I pop it in what could I do to it to extend its life? header tape?

all comments welcome, constructive or otherwise...
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Old 01-13-2018, 12:40 PM
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I think wet header tape would be a downer in the long run.

I'd think clean it up and coat it with something that will protect it from corrosion that can take the heat... header paint or such maybe?
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Old 01-13-2018, 05:35 PM
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Header tape is not a good idea. If you're looking for longevity I'd have them coated with one of the high tech ceramic finishes, Jet Hot for example.
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Old 01-14-2018, 09:48 PM
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Cerakote! https://www.cerakotehightemp.com/
Treeroot cerakoted his 1FZ exhaust manifold. There's a high-temp version specifcially designed for exhausts. If I recall, Applied Plastic Coatings in Wheat Ridge offers this.
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Old 01-15-2018, 10:40 AM
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I cerakoted the exhaust on the 40 and it's starting to rust in a few spots. kind of a bummer but i guess i figured it would happen either way. weld up your spare and maybe get some header paint for that one and the spare? I've tried adding weld to manifolds that crack where they crack and the crack just moves over a bit. Crack. Usually it's the design that doesn't allow flex in the piece and it just cycles till it cracks. Maybe Jet hot is worth a try.
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Old 01-15-2018, 11:24 AM
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Search on google for applying slip plate to it. Many hot rod guys apply it to factory exhaust manifolds. You would have to get that sandblasted though first.
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Old 01-15-2018, 01:44 PM
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Would it be worth scanning that to have a stainless version tig welded up from scratch later? Seems like a simple enough part that a higher quality part could made later when this one eventually fails.
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Old 01-15-2018, 01:53 PM
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wow some good thoughts here, thanks! Two things I don't understand is does this part flex or not, and how much space it has in there.. the sled is at a shop right now. I wouldn't want to make this part substantially stronger, only to push the load onto the next pipe in the system (which cost more than this Y-pipe) for example.

Tempted now to toss this one in as-is, then get my cracked one back to use as a guide and see about having a new one made. Also I am unfortunately running out of time here, there was quite a few shipping debacles getting this pipe and the shop is about ready to start charging me a storage fee- so I need to get them this pipe & get it out of there.
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Old 01-15-2018, 02:16 PM
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i would ceramic coat it or at least clean it up and hit it with high temp grill paint.
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Old 01-15-2018, 02:52 PM
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Quote:
Originally Posted by wesintl View Post
i would ceramic coat it or at least clean it up and hit it with high temp grill paint.
that's not a bad thought... those paints are rated up to 1200 degrees, no way this thing gets that hot right? This is essentially the header, first step after the exhaust port on the engine.
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