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D17 Fuel Line Fitting Sizes

R

RTR

Well-known Member
Guys, I m trying to get this old tractor running again and was looking at the pictures at home (it s an hour away at the farm), and noticed the fuel line is missing. I have the original MS carburetor with me and it has been fully rebuilt. I m trying to gather everything I m going to need to hook up the fuel system. With the fuel line missing, can I get a piece of brake line at parts store? If so, what size line? Also, what fittings will I need to hook the line up at the fuel sediment bowl and at the carburetor? Pictures are attached.

mvphoto96821.jpg


mvphoto96822.png
 
(quoted from post at 10:30:50 09/04/22) Guys, I m trying to get this old tractor running again and was looking at the pictures at home (it s an hour away at the farm), and noticed the fuel line is missing. I have the original MS carburetor with me and it has been fully rebuilt. I m trying to gather everything I m going to need to hook up the fuel system. With the fuel line missing, can I get a piece of brake line at parts store? If so, what size line? Also, what fittings will I need to hook the line up at the fuel sediment bowl and at the carburetor? Pictures are attached. ***** Unless you are concerned about keeping it original looking, just change it over to 5/16" or 3/8" rubber gas line hose. Your fittings shown in the pictures aren't quite original anyway. The one on the sediment bowl might be correct (inverted flare) but the one on the carb is not. Get a 90 degree elbow for the carb that has a hose barb nipple on it and straight hose barb nipple for the sediment bowl. Both are 1/8" male pipe thread into their threaded connection holes. Get 3 feet of hose and cut to length. Do not let the hose droop down !! keep it in a pretty straight line. Now, about the carburetor itself. Be a great time to add on an in-line fuel filter to keep your carb clean from a rusty old fuel tank.Unless your picture is reversed, the throttle shaft is on the wrong side/backwards. The choke linkage is for a series 4 model using a cable and it looks bass-ackwards too.

This post was edited by DrAllis on 09/05/2022 at 05:04 am.
Click to expand...
 
Dr Allis - what problems are caused if the rubber hose droops? The reason I asked is I replaced my split original fuel line on my Series III with a pre-made NAPA brake line. I put a downward U in it as the pre-made line was bit too long. I don't think that is causing me any issues itself but asking if I am wrong. I have had issues with my float needle valve getting crap in it reducing the gas flow so I'm thinking your in-line filter suggestion would help.
 
(quoted from post at 09:19:18 09/06/22) Dr Allis - what problems are caused if the rubber hose droops? The reason I asked is I replaced my split original fuel line on my Series III with a pre-made NAPA brake line. I put a downward U in it as the pre-made line was bit too long. I don't think that is causing me any issues itself but asking if I am wrong. I have had issues with my float needle valve getting crap in it reducing the gas flow so I'm thinking your in-line filter suggestion would help.
Click to expand...
***** Best fuel flow, on a near empty fuel tank, works best without a droop in the line. In-line fuel filter is far better than the sediment bowl screen.
 
I would go with the 5/16" fuel hose option to get it running. A handful of fittings and some hose is a pretty sure bet you can make something work. The OEM line will need everything to be correct. If the picture of the sediment bowl is the one on the tractor, it apparently has issues (note separate shutoff valve and plug where the correct shutoff valve should be), an original steel line may not fit correctly as it is. For an inline filter WIX makes a couple with screen in them instead of paper media, if one has a concern about restriction from the paper media. Once it is running, and you are sure the carb is correct, you can track down the correct line and other parts that might be needed for the original line to fit correctly.

mvphoto96923.jpg
 
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