TRACTOR PARTS Allis Chalmers Case & David Brown Farmall & International Ferguson Ford & New Holland John Deere Massey Ferguson Massey Harris Minneapolis Moline Oliver & Cockshutt Kubota / Yanmar

TRACTOR MANUALS

Allis Chalmers	Case	Farmall IH	Ford 8N,9N,2N	Ford
Ferguson	John Deere	Massey Ferguson	Minn. Moline	Oliver

Discussion Forum

Fuel not flowing at settling bowl on JD 50

Welcome Guest, Log in or Register

Author

Jeff

03-01-2003 13:20:53

Report to Moderator

We are just putting back toether a JD 50 with the oil pressure vavle on the settling bowl. Everything ran great before we started and even once in the middle of restoring it. Today we were going to get everything set on it but run into a problem. The gasket on the settling bowl was leaking so we made another one. The fuel will run fine as long as the glass part is loose when you push the valve at the top of the bowl down. However if you tighten the glass bowl up to where it doesn't leak the fuel will stop flowing. We have had the gas cap off thinking that might have something to do with it but nothing. it is getting enough to the carb to idle but nothing else. Is there something here I am missing? I got the new gasket as close to the same size as the original I thought. Any help os greatly appreciated!

[Log in to Reply] [No Email]

Clooney

03-01-2003 14:43:47

Report to Moderator

Re: Fuel not flowing at settling bowl on JD 50 in reply to Jeff, 03-01-2003 13:20:53

Jeff, what you have is normal. All that's happening is the carb is full & the needle & seat are sealed. If the fuel doesn't have anywhere to flow the glass bowl will airlock. As soon as the carb needs fuel it will flow, OR, you can open the carb drain valve & then watch it flow.
~You know you also have to unscrew the knurled nut on the oil pressure shut-off then hold the valve open for it to flow without the engine running.

[Log in to Reply] [No Email]

jeff

03-01-2003 16:59:25

Report to Moderator

Re: Re: Fuel not flowing at settling bowl on JD 50 in reply to Clooney, 03-01-2003 14:43:47

Thanks for replying. I didn't know that you have to unscrew the knurled nut but this was happening when the engine was shut off. Even with the glass bowl empty if I tighten it it won't flow. I was pushing the knurled nut down to get it to come though but will try unscrewing it also. Another question, where is a good starting point forthe 2 needle controlers under the carb? As I said earlier, it will idle fine but after about half throttle it will pop and act like it is not getting enough fuel.

Could it be possible that the needle and seat are opening only enough to let a small amount of fuel through? We took this carb off a few months ago and cleaned it good but this is the first time we have started the tractor since.

Thanks again!

[Log in to Reply] [No Email]

Clooney

03-01-2003 17:15:56

Report to Moderator

Re: Re: Re: Fuel not flowing at settling bowl on JD 50 in reply to jeff, 03-01-2003 16:59:25

Jeff, by saying "2 needle controllers under the carb" I presume you have a dual DLTX carb [if its a single disregard this & post back].
~Set the 2 idle needles to about 1-1/2 turns out from seated & the load needle [in center of bowl nut] to about 2-1/2 turns out from seated. Then after it's hot, set the idle needles to best idle by shorting out one cylinder & adjusting the idle screw on the other side for best highest idle, then do the same for the other side.
~On the load needle, set it for best running while under load & to give the best economy.
~The usual cause of popping & backfiring after 1/2 throttle is the little holes plugged in the sides of the main nozzles. Did you pull the nozzles & clean all the little side holes?

[Log in to Reply] [No Email]

jeff

03-01-2003 19:00:29

Report to Moderator

Re: Re: Re: Re: Fuel not flowing at settling bowl on JD 50 in reply to Clooney, 03-01-2003 17:15:56

I just got back from trying the fuel flow and took the fuel line off then opened the valve onthe settling bowl. It would flow but still a little slow (I am not real sure how much is supposed to go through the fuel line anyway)

The carb was full so the fst speed is not caused by flow from the tank as it should run wide open for a minute at least before the carb gets low. Withthe choke about half on it wil run wide open so I was thinking what you just wrote about the nozzles and jets being clogged.

When we had the carb off we sent it to a guy who works on JD's alot so I am not sure if he took it completly apart or not but it could have gotten something in the nozzles after that since it has been 6 months or so since it was used. I will probably try taking i off tomorrow and cleaning it real good and checking those holes.

This is gonna sound like a dumb question but by "shorting out one side" Do you mean pull the plug wire on one side then the other to set the idle?

Can't thank you enough for the info so far, I am going to learn these things if it kills me!!

[Log in to Reply] [No Email]

Clooney

03-02-2003 05:09:21

Report to Moderator

Re: Re: Re: Re: Re: Fuel not flowing at settling bowl on JD 50 in reply to jeff, 03-01-2003 19:00:29

Jeff, you asked "Do you mean pull the plug wire on one side then the other to set the idle"?
~Well sort of.... you would accomplish the same thing by just pulling a plug wire [& a lot of people do just pull a plug wire], but you really shouldn't EVER pull a plug wire with it running. That's a good way to force the spark to jump to somewhere it isn't supposed to inside the cap or at the rotor & start a carbon track. You really should use a jumper wire & short the plug top to ground, or slide a paper clip under the plug boot then ground that paper clip with a jumper wire.

[Log in to Reply] [No Email]

jeff

03-02-2003 06:59:25

Report to Moderator

Re: Re: Re: Re: Re: Re: Fuel not flowing at settling bowl on JD 50 in reply to Clooney, 03-02-2003 05:09:21

Ok I'll do it your way:), sounds like alot better than pulling a wire:) Fixing to eat breakfast and get strted on it this morning but as you suspect I forsee taking the carb off and cleaning it first.

[Log in to Reply] [No Email]

AlbertoV05

03-01-2003 18:11:11

Report to Moderator

Re: Re: Re: Re: Fuel not flowing at settling bowl on JD 50 in reply to Clooney, 03-01-2003 17:15:56

Clooney,
I have the idle adjustment needles out about 4 or 5 turns to get a decent idle. Just had the carb overhauled by Burrey's. Is 4 or 5 turns out too many?
DLTX carb on my Model 60
Thanks!

Al in Iowa

[Log in to Reply] [No Email]

[Options] [Printer Friendly] [Posting Help] [Return to Forum] [Log in to Reply]

TRACTOR PARTS	TRACTOR MANUALS

We sell tractor parts! We have the parts you need to repair your tractor - the right parts. Our low prices and years of research make us your best choice when you need parts. Shop Online Today. [ About Us ]

Home | Forums

Copyright © 1997-2023 Yesterday's Tractor Co.
All Rights Reserved. Reproduction of any part of this website, including design and content, without written permission is strictly prohibited. Trade Marks and Trade Names contained and used in this Website are those of others, and are used in this Website in a descriptive sense to refer to the products of others. Use of this Web site constitutes acceptance of our User Agreement and Privacy Policy

TRADEMARK DISCLAIMER: Tradenames and Trademarks referred to within Yesterday's Tractor Co. products and within the Yesterday's Tractor Co. websites are the property of their respective trademark holders. None of these trademark holders are affiliated with Yesterday's Tractor Co., our products, or our website nor are we sponsored by them. John Deere and its logos are the registered trademarks of the John Deere Corporation. Agco, Agco Allis, White, Massey Ferguson and their logos are the registered trademarks of AGCO Corporation. Case, Case-IH, Farmall, International Harvester, New Holland and their logos are registered trademarks of CNH Global N.V.

Yesterday's Tractors - Antique Tractor Headquarters

Website Accessibility Policy