New fuel line fittings 8N

BeaverIslander · Nov 27, 2013

I just received a new fuel line (A-9N9282A) for my 49' 8N to replace the rubber line and inline filter that was on it. Neither of the fittings on the new fuel line fit into the existing setup which was probably cobbled up (everything else has been) so did I get the wrong one? Coming off the shut off valve the new fitting is to small, maybe I'm missing an adapter for the lack of a better word. On the carb end the flared fitting does not go in far enough to allow the fitting to even begin screwing in so I'm not sure if it will fit but it appears that it should. If it is the correct one am I just missing some parts? Could someone tell me what I need to get for the shut off end, and what do I do about the carb end? Is it supposed to be filed down, is it missing something or did I simply get the wrong part.
1. shutoff valve end, 2. carb end, 3. to much flare?
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I could not find the answers in the manual, so I need to pester you guys once more as I have one shot at getting the right parts over here before a long weekend.

TheOldHokie · Nov 27, 2013

(quoted from post at 14:11:16 11/27/13) I just received a new fuel line (A-9N9282A) for my 49' 8N to replace the rubber line and inline filter that was on it. Neither of the fittings on the new fuel line fit into the existing setup which was probably cobbled up (everything else has been) so did I get the wrong one? Coming off the shut off valve the new fitting is to small, maybe I'm missing an adapter for the lack of a better word. On the carb end the flared fitting does not go in far enough to allow the fitting to even begin screwing in so I'm not sure if it will fit but it appears that it should. If it is the correct one am I just missing some parts? Could someone tell me what I need to get for the shut off end, and what do I do about the carb end? Is it supposed to be filed down, is it missing something or did I simply get the wrong part.
1. shutoff valve end, 2. carb end, 3. to much flare?
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I could not find the answers in the manual, so I need to pester you guys once more as I have one shot at getting the right parts over here before a long weekend.

I'm thinking you might try reversing the ends :idea:

TOH

BeaverIslander · Nov 27, 2013

I already tried that.... no dice.

Bob · Nov 27, 2013

Get the proper carb elbow (with screen), and a "5/16" "inverted flare"-to-1/8" pipe thread adapter.

That's what the fittings on the new line are called... "inverted flare".

Bruce (VA) · Nov 27, 2013

Get a new OEM brass elbow. Is the sediment bowl OEM? If not, you will need one of those as well.

The pic is an OEM bowl. Do NOT try & find one at TSC!

Regarding the brass elbow.......don't honk down on it; it's brass. First, use a flare wrench to remove the fitting. (as in the picture) Next, if you do not have another fitting to screw into the elbow (as in the picture) then use a crescent wrench on the top & bottom (NOT the sides) of the elbow to remove it. Otherwise, you will distort it & you will never get the fuel line fitting back into it.

75 Tips

TheOldHokie · Nov 27, 2013

(quoted from post at 14:21:41 11/27/13) I already tried that.... no dice.

The OEM line was 1/4" tube with 7/16-24 tube nuts on both ends.

The carburetor has an 1/8" NPT x 7/16-24 inverted flare 90* adapter elbow in it. The shutoff valve should have nothing in it and the body should be a 7/16-24 female inverted flare.

TOH

BeaverIslander · Nov 27, 2013

For this Thanksgiving instead of Gobble Gobble Gobble, I got cobble, cobble, cobble!
After looking at the 3rd pic, does it look like I have a different sediment bowl and are there any suggestions for adapting the new line to it?
Can I assumed if I get -- an 1/8" NPT x 7/16-24 inverted flare 90* adapter elbow in it-- that it will take care of my carb fitting issue,
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TheOldHokie · Nov 27, 2013

(quoted from post at 15:05:59 11/27/13) For this Thanksgiving instead of Gobble Gobble Gobble, I got cobble, cobble, cobble!
After looking at the 3rd pic, does it look like I have a different sediment bowl and are there any suggestions for adapting the new line to it?
Can I assumed if I get -- an 1/8" NPT x 7/16-24 inverted flare 90* adapter elbow in it-- that it will take care of my carb fitting issue,

It's impossible to tell the thread size from a photograph but it looks like you have the proper elbow and shutoff valve. Does the shutoff valve look to be the same size as the elbow? If so you just need a line with the proper ends on it. Your local auto parts store should have lengths of 1/4" brake line with those ends - buy a 24"length and carefully bend it to fit. Take the elbow along to make sure you get the correct thread. It won't cost you anywhere close to the $20+ you paid for that A&I part.....

TOH

PS> If you are going to work on mechanical stuff invest in a cheap caliper - a $15 plastic dial caliper is good enough to measure those fittings and we can all stop guessing....

BeaverIslander · Nov 27, 2013

Now that I have the carb elbow off, minus the in-line strainer-(don't know where that went) I got the new fitting threaded into it. The fuel sediment bowl is still a problem- I just went to our small hardware store, they had no such adapter/reducer/replacement. Guess come Friday I'll probably have to fly it back over to an Auto Parts store on the mainland and see if they can change it over for me. Just another day in the boondocks, sometimes peace and quite has a price

TheOldHokie · Nov 27, 2013

(quoted from post at 17:43:58 11/27/13) Now that I have the carb elbow off, minus the in-line strainer-(don't know where that went) I got the new fitting threaded into it. The fuel sediment bowl is still a problem- I just went to our small hardware store, they had no such adapter/reducer/replacement. Guess come Friday I'll probably have to fly it back over to an Auto Parts store on the mainland and see if they can change it over for me. Just another day in the boondocks, sometimes peace and quite has a price

So the small end of the new line fits the elbow but not the sediment bowl??? Sounds odd - OEM line was same size both ends.....

TOH

BeaverIslander · Nov 27, 2013

Yes sir, that is correct, and the fittings "ARE" the same on both ends of the new fuel line. The female fitting in the sediment bowl is the problem now. I thought about taking the (male end) from the old fuel line and putting it on the new line, end towards the sediment bowl and find someone to flare it. I just measured it with a pair of calipers in my reloading room (I'd forgot about - thanks for the idea!)and the new line is 0.25 while the old line was 0.2725. Would that work?

TheOldHokie · Nov 27, 2013

(quoted from post at 18:57:15 11/27/13) Yes sir, that is correct, and the fittings "ARE" the same on both ends of the new fuel line. The female fitting in the sediment bowl is the problem now. I thought about taking the (male end) from the old fuel line and putting it on the new line, end towards the sediment bowl and find someone to flare it. I just measured it with a pair of calipers in my reloading room (I'd forgot about - thanks for the idea!)and the new line is 0.25 while the old line was 0.2725. Would that work?

You are making this more difficult than it needs to be. Sounds like all you need is an adapter for the sediment bowl end and you have one that fits already. So quit guessing and speculating. Take those wonderful no guessing needed calipers and measure that old fitting the was originally screwed into the sediment bowl. And while you are at it measure the fitting(s) on the new line and tell us what size they are :idea: Once you [b:6d9d5103af][u:6d9d5103af]know[/u:6d9d5103af][/b:6d9d5103af] what sizes the respective threads are you simply buy the proper adapter.....

TOH

PS> Make sure you measure the OD of the threads, not the root diameter.

PPS> That fitting that you removed from the shutoff valve looks suspiciously like an NPT thread. If so someone has probably munged the original threads in the valve. If you can post a picture showing the END VIEW of that fitting

PPPS> It has been pointed out to me that the carburetor elbow probably isn't correct either. Looks like the elbow is an SAE 45* flare not an inverted flare like the new part. That would also mean the internal thread in the elbow is 7/16-20 not 7/16-24 which probably explains why your new flare wouldn't clear the internal threads. I hope you haven't forced them together?????

BeaverIslander · Nov 27, 2013

Here you go, and thank you for hanging in there with me.
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BeaverIslander · Nov 27, 2013

*****PPPS> It has been pointed out to me that the carburetor elbow probably isn't correct either. Looks like the elbow is an SAE 45* flare not an inverted flare like the new part. That would also mean the internal thread in the elbow is 7/16-20 not 7/16-24 which probably explains why your new flare wouldn't clear the internal threads. I hope you haven't forced them together????? ****
No, I did not force them. I did find that after I had it out and in my hand I was able to get it started. I only went about one turn and took it apart. Is that why I did not have the strainer on the elbow? I just figured this guy cut it off.......Everyday I learn of another short cut he managed to take. Now I wonder if there are any fuel filters left now that I took the in-line one off.

TheOldHokie · Nov 27, 2013

OK - the new line is 7/16 and since it is clearly an inverted flare so it should be 24 TPI.

The old flare fitting is of no concern but looks like it was probably SAE 45 flare with a 7/16-20 thread. The .540 end would likely be be 1/4" NPT.... If it is AND it is teh proper fitting for the shutof valve you would need a male 1/4" NPT x female 7/16-24 inverted flare adapter for that end.

On teh other end order the proper fuel line elbow with strainer for the carb: female 7/16-24 inverted flare x 1/8" male NPT.

Aren't you glad you decided to "fix" this......

TOH

BeaverIslander · Nov 27, 2013

Yup,I think I opened up another can or worms.
I will see if I can locate the adapter. If not, I see a new sediment bowl is $14 shipped on an auction site. Of course then I would probably find that it would not fit the gas tank do to some modification or another.
I need to revisit this tomorrow. My wife's patience is starting to run thin and I don't need two problems at the moment

Thank you!

Bruce (VA) · Nov 27, 2013

" I see a new sediment bowl is $14 shipped on an auction site"

Have you seen some of the junk out there? I have. Take a look at the 3 in this picture I took off of various N's that I bought.

You'll be happier in the long run paying the extra $5 and getting an OEM bowl (on the left in the pic) from this site or nnalert's.

BeaverIslander · Nov 27, 2013

Point well taken and thank you for bringing this to my attention Bruce. So much to learn, so little time

BeaverIslander · Nov 27, 2013

I have not located this adapter yet. It would be nice if I could find one someplace that has the elbow with the strainer in it too. Does anyone know where I might be able to get both to save on shipping?

1.) male 1/4" NPT x female 7/16-24 inverted flare adapter for that end.

2.) the proper fuel line elbow with strainer for the carb: female 7/16-24 inverted flare x 1/8" male NPT.

Hopefully I won't need the sediment bowl.

ScoutB · Nov 27, 2013

As TOH points out the .540" is pipe thread. If it's tapered (let's hope so) it's NPT. The adapter for NPT should be http://www.dormanproducts.com/p-21944-43232.aspx. They call it 1/4 x 1/4, meaning 1/4" brake line x 1/4" NPT. The 1/4" brake line end should be 7/16-24 inverted flare.

TheOldHokie · Nov 27, 2013

(quoted from post at 22:19:07 11/27/13) I have not located this adapter yet. It would be nice if I could find one someplace that has the elbow with the strainer in it too. Does anyone know where I might be able to get both to save on shipping?

1.) male 1/4" NPT x female 7/16-24 inverted flare adapter for that end.

2.) the proper fuel line elbow with strainer for the carb: female 7/16-24 inverted flare x 1/8" male NPT.

Hopefully I won't need the sediment bowl.

The carb elbow is easy - right fromthis site among many others:

Carb elbow

The adapter not much harder - most any auto parts place SHOULD have it but you REALLY need to confirm the thread in the fuel shutoff first:

1/4" male NPT x 1/4" female inverted flare adapter

TOH

BeaverIslander · Nov 28, 2013

Thank you to all who have offered suggestions and helped me out here. I have a game plan.....and I like that.
Have a nice Thanksgiving.

Bruce (VA) · Nov 28, 2013

(quoted from post at 19:07:25 11/27/13) Point well taken and thank you for bringing this to my attention Bruce. So much to learn, so little time

You're welcome.

BTW, that POS bowl w/ the yellow color came from a mail order catalog. It didn't even have a standard size screen or gasket.

The other 2 leaked. The one w/ the faucet handle could have been rebuilt but I didn't want that ugly thing on my tractor.

New fuel line fittings 8N

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