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Fraser MacPhee
PostPosted: Sun Mar 24, 2013 11:51 am 
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Joined: Wed Oct 21, 2009 8:57 am
Posts: 722
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Location: USA
"Memphis Belle taxied up behind me"

Lee.....it was Dolly Parton in a Yellow Cab......

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Fraser MacPhee
N926WM
Serial #279-1
Angel Fire, NM (KAXX)


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Rich Brazell
PostPosted: Sun Mar 24, 2013 1:08 pm 
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Joined: Wed Oct 21, 2009 12:33 pm
Posts: 3095
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Location: Jamul, CA (San Diego area)
Did not know ? It fooled me and it still looked good !

RB O0


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jrevens
PostPosted: Mon Mar 25, 2013 9:12 pm 
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Joined: Thu Oct 22, 2009 10:13 pm
Posts: 789
Location: USA
Bill Williams wrote:
Whoa! if talking about the fitting for a Marvel carburator it is a straight thread with a nut, O ring and an washer and not a pipe thread. This fitting is the same as the fuel pump fitting and can be positioned at any angle.


MA-4 & -5 carburetors have a 1/4"-18 tapered pipe thread from the factory. As I mentioned in my first post on this subject, some other carbs may have a straight machine thread, & you use an o-ring & check nut to seal & secure the fitting (at any angle you want), but not MA-4s & 5s unless they have something non-original. As Scott (& I) suggested, a straight fitting on the carb along with a 90 deg. fitting on the hose is a fine way to go. The long-radius "sweep" elbow fitting that Scott suggested would be my choice.

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John Evens
Arvada, Colorado

T-18 N71JE (sold)
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Bill Williams
PostPosted: Tue Mar 26, 2013 5:46 am 
John, I think we are both correct. In looking at both MA4 carbs I have in the hanger both have a straight thread in the casting. There is an adapter that is straight thread and a crush washer that screws into the carb, the other end is a 1/4 pipe thread. I removed this fitting and installed a 90 straight thread fitting using an O ring and washer/nut.


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