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TSX 67 Carb On A WC Allis


 
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Deere-Slayer
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PostPosted: Mon Dec 03, 2012 7:10 pm    Post subject: TSX 67 Carb On A WC Allis Reply to specific post Reply with quote

OK....so i just bought a TSX67 carb off a MM UTU tractor and was wondering what all i need to do to get everything to fit and work.....Any advise to improve the carb as well would be great.....WI 50 i know u had some advise for me in my last post. About how to notch out the manifold....?
 
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MMMMMMMMMMMMM
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PostPosted: Mon Dec 03, 2012 8:07 pm    Post subject: Re: TSX 67 Carb On A WC Allis Reply to specific post Reply with quote

Call Matt at Motec Engineering. 765-963-6628. The guy is a wizard with carburetors. Tell him what you have, he'll make it run.
 
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PostPosted: Tue Dec 04, 2012 6:10 am    Post subject: Re: TSX 67 Carb On A WC Allis Reply to specific post Reply with quote

You have to shorten the neck on the manifold.
 
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wi50
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PostPosted: Tue Dec 04, 2012 6:37 am    Post subject: Re: TSX 67 Carb On A WC Allis Reply to specific post Reply with quote

I make a new neck for the manifold. I cut a flange to match the carb, then I take square tubeing and weld on the flange, I weld the inside at a taper filling from the throttle bore out, put it on a jig in the lathe and bore it at a taper.


I cut the neck off the manifold and open up the bottom of the manifold. Then weld the new neck on filling the corners so I can cut a large radius. The larger the radius you can cut, the better.

If your rules would allow it, I would make a billet plate with the carb bore and bolt pattern on, machine the other side at a long taper, cut the bottom of the manifold out and weld this on. But of course it's not going to "appear stock"

Or you can simply grind the flange on the carb down, or build up the one on the manifold if they have to match and shoehorn it on. Bore the neck of the manifold and radius the corners. They won't flow near as well as either of the above methods but it may not matter depending on your head flwo and engine requirements. This is much easier than the other methods, and will support most of the small engines just fine.

The manifolds don't move as much air as the head will in stock form, and that TSX 66<67<666 etc carbs without any work will flow more than the manifold will in stock form but it doesn't take a lot of time to radius the corners off on the carb neck and in the runner. Weld up the back side of the corners to cut a larger internal radius. The larger radius you can cut the better. I fill the top corner of the runner where it turns to go into the head also, it's just a dead spot and one can put quite a bit of fill in without hurting anything, depending on the radius cut on the bottom. It's all about being able to get the signal from the cylinder transfered to the carb. Shape is worth more than size, velocity is a good thing.

I've got to make a half dozen flanges and necks here for guys anyday and do a bunch of manifold work. I can send you a few pictures if you're interested. If I get a chance I'll post a pic of mine. 715-790-1869
 


Last edited by wi50 on Tue Dec 04, 2012 6:47 am; edited 4 times in total
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PostPosted: Thu Dec 06, 2012 5:11 pm    Post subject: Re: TSX 67 Carb On A WC Allis Reply to specific post Reply with quote

I will be getting ahold of you soon....Maybe intrested in a neck to just weld onto my intake after i cut my neck off. Let me know what u would have to have for one....my email is Clason_20@hotmail.com you should send me some pictures of your work, Sounds like alot of fun. My head is ported out as best i could do by hand. And as big as a can before i get into the water jackets. I already cut into a water jacket once on my first head i did. I JBwelded the pin hole and have pulled three years on that head and it is the best puller i have. Guessing about 75 horse on that one.The one the carb is going on dynoed out at 65 horse and it wasnt running worth a crap and had low octane fuel. so we have all winter to play and get this thing worked out.
 
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