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G manifold
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Kiwi View Drop Down
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Joined: 23 Jan 2018
Location: New zealand
Points: 391 		Post Options Post Options   Thanks (0) Thanks(0)   Quote Kiwi Quote  Post ReplyReply Direct Link To This Post Topic: G manifold
    Posted: 12 Jul 2022 at 2:54am
Hi all is there anyway of cutting new threads for the muffler in a G manifold or do I need a new one.
Tractors Allis EB,two C,diesel G
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AaronSEIA View Drop Down
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Joined: 11 Sep 2009
Location: Mt Pleasant, IA
Points: 2584 		Post Options Post Options   Thanks (0) Thanks(0)   Quote AaronSEIA Quote  Post ReplyReply Direct Link To This Post Posted: 12 Jul 2022 at 5:30am
You can try to tap new threads in.   When I had a shop do that with my D17 manifold, the tap split the top of the manifold.
AaronSEIA
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Gatz in NE View Drop Down
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Joined: 11 Sep 2009
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Points: 1064 		Post Options Post Options   Thanks (0) Thanks(0)   Quote Gatz in NE Quote  Post ReplyReply Direct Link To This Post Posted: 12 Jul 2022 at 9:48am
By "cutting new threads", do you mean the old threads are stripped out ?

If so, is there enough (cast) material to re-thread?  Might try tapping it anew as Aaron said.  OR, does it require going to the next size NPT?

Then something else to consider.... If there's a machine shop in your area that has a CNC mill with a threading cycle.  Ask them if they can do it.  Shouldn't be too much of a challenge.
Of course, both these suggestions assume there's material there.
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