48 exterior fuel pump fittings

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melcessna
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Joined: Thu May 17, 2007 12:28 am

48 exterior fuel pump fittings

Post by melcessna »

I am looking for the part numbers of the fittings that extend from the fuel pump and connect the two fuel lines to/from the carburetor. Any direction to drawings/manuals would be helpful. Thank you
Michael E. Lewis
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GAHorn
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Re: 48 exterior fuel pump fittings

Post by GAHorn »

Are you referring to Fig 34 of the IPC…??
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'53 B-model N146YS SN:25713
50th Anniversary of Flight Model. Winner-Best Original 170B, 100th Anniversary of Flight Convention.
An originality nut (mostly) for the right reasons. ;)
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n2582d
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Re: 48 exterior fuel pump fittings

Post by n2582d »

Screen Shot 2022-12-01 at 6.55.38 PM.png
Michael,
The O-300 IPC, fig. 19, shows p/n 24945 and 21619 as elbows which screw into the fuel pump. They are available at Preferred Air Parts.
Screen Shot 2022-12-01 at 6.56.09 PM.png
Edit: Fig. 34-58 in the 1948 IPC shows that these two elbows are different than the Continental IPC illustrates.
The Cessna IPC calls for AN822-6-2D.
Last edited by n2582d on Fri Dec 02, 2022 6:17 pm, edited 1 time in total.
Gary
melcessna
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Re: 48 exterior fuel pump fittings

Post by melcessna »

Fabulous Gary. I thought this pump was restricted to the 48’s 145-2A and the forward door post. I guess later models weren’t changed yet. Hope you are doing well. Thanks, problem solved.
Michael E. Lewis
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GAHorn
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Re: 48 exterior fuel pump fittings

Post by GAHorn »

melcessna wrote:Fabulous Gary. I thought this pump was restricted to the 48’s 145-2A and the forward door post. I guess later models weren’t changed yet. Hope you are doing well. Thanks, problem solved.

These engines may be installed in airplanes other than 170s…. Any of these engines which are installed in a low-wing aircraft will also need a fuel pump. :wink:
'53 B-model N146YS SN:25713
50th Anniversary of Flight Model. Winner-Best Original 170B, 100th Anniversary of Flight Convention.
An originality nut (mostly) for the right reasons. ;)
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n2582d
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Re: 48 exterior fuel pump fittings

Post by n2582d »

Michael,
Doing well, thanks! I thought you sold your '48. Was listing it just a temporary lapse in judgement? :lol: Hoping you are enjoying flying that masterpiece!

It looks like I gave you a bum steer. Without looking closely I thought fig. 34-58 in the 1948 IPC was pointing to the fuel pump. It actually is for both elbows, AN822-6-2D, that go in the fuel pump. Sorry about that.
AN822-6-2D_24430.png
AN822-6-2D_24430.png (35.8 KiB) Viewed 1094 times
The "D" on that elbow p/n indicates that it is aluminum. Might be worth considering using steel elbows, AN822-6-2.
Gary
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