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B manifold Threading. Dick L , maybe?


 
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loveshisalis
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PostPosted: Sun Sep 25, 2011 12:10 pm    Post subject: B manifold Threading. Dick L , maybe? Reply to specific post Reply with quote

Hey dere;

I read that an 1" and a quarter inch tapered pipe tap is what to use to do the job in a Allis B stock manifold. Where can I pick on of these up, and then where do I get the nipple that goes inside of this?
precciate the help
 
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Bob
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PostPosted: Sun Sep 25, 2011 12:19 pm    Post subject: Re: B manifold Threading. Dick L , maybe? Reply to specific post Reply with quote

You can buy or order a 1-1/4" pipe tap for $$$$ at ANY hardware store.

You can probably find a reasonably good one on fleabay for a LOT less, or perhaps borrow one.

The pipe is simply 1-1/4" black pipe, even the "big box stores" probably have it in their plumbing dept.
 
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DiyDave
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PostPosted: Sun Sep 25, 2011 3:25 pm    Post subject: Re: B manifold Threading. Dick L , maybe? Reply to specific post Reply with quote

You can get both at McMaster-Carr, or MSC, or Enco. Google any or all of 'em
 
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Bob Bancroft
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PostPosted: Sun Sep 25, 2011 3:38 pm    Post subject: Re: B manifold Threading. Dick L , maybe? Reply to specific post Reply with quote

An AC B stock manifold was never threaded. And I would guess trying to thread an old one would bust it.
 
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Dick L
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PostPosted: Sun Sep 25, 2011 6:23 pm    Post subject: Re: B manifold Threading. Dick L , maybe? Reply to specific post Reply with quote

Old ones are easier to tap than new ones because the hole is a little larger. Takes less work to get the 1 1/4" tap down 3/4 the way on the tap.

I tap every one of my manifolds. All of my tractors set out side year around. seals the water out.

New one tapped in this picture.





I have a picture in my fotki site some where of one of the old manifolds that I had tapped. Couldn't find it just now.
 
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loveshisalis
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PostPosted: Sun Sep 25, 2011 7:29 pm    Post subject: Re: B manifold Threading. Dick L , maybe? Reply to specific post Reply with quote

hey DickL;

Thanks for the good tips. I might try that lifting trick using the stud girdle like you did. Sure daves having to pull the head bolts when lifting the mill ! .

appreciate all the good help
 
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loveshisalis
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PostPosted: Sun Sep 25, 2011 7:31 pm    Post subject: Re: B manifold Threading. Dick L , maybe? Reply to specific post Reply with quote

Hey DickL;

Also, do I have to pull the clutch off to replace the ring gear off the flywheel? I got that job coming up too.
In the menatime, got to line upa 1-1/4" tap, .
tanks
 
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Bob Bancroft
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PostPosted: Sun Sep 25, 2011 10:40 pm    Post subject: Re: B manifold Threading. Dick L , maybe? Reply to specific post Reply with quote

So many manifolds I have seen are so rotten you can hardly look at them, let alone tap them- I am impressed!
I wonder how many manifolds the average guys without your skill have busted?!
I suppose a manifold AND tap that are in good condition makes the difference.
 
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Dick L
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PostPosted: Mon Sep 26, 2011 3:24 am    Post subject: Re: B manifold Threading. Dick L , maybe? Reply to specific post Reply with quote

A sharp tap does not put a great deal of out ward pressure when only turning the larger tap in an 1/16 to 1/8 of a turn before backing the tap up to clear the chips.
 
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thebigyellowtruck
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PostPosted: Mon Sep 26, 2011 7:56 am    Post subject: Re: B manifold Threading. Dick L , maybe? Reply to specific post Reply with quote

have you ever tapped a WD all fuel manifold?(with the bolt on plate) if so what size is it? thanks
 
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Dick L
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PostPosted: Mon Sep 26, 2011 10:02 am    Post subject: Re: B manifold Threading. Dick L , maybe? Reply to specific post Reply with quote

No sir, I have not. I have never owned a WD but you can find out what size of tap needed with a ruler or set the correct sized pipe nipple over the hole.
 
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thebigyellowtruck
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PostPosted: Tue Sep 27, 2011 5:57 am    Post subject: Re: B manifold Threading. Dick L , maybe? Reply to specific post Reply with quote

thanks Dick. I think that will be a project for next spring.
 
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steve(ill)
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PostPosted: Tue Sep 27, 2011 2:46 pm    Post subject: Re: B manifold Threading. Dick L , maybe? Reply to specific post Reply with quote

look up "plumber" in the local small town phone book. Pay him $10, and let him tap it in 10 minutes while you wait.
 
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