Cub quit out in the field

Farmall Cub Forum -- Questions and answers to all of your Cub related issues.

Moderator: Team Cub

Forum rules
Notice: For sale and wanted posts are not allowed in this forum. Please use our free classifieds or one of our site sponsors for your tractor and parts needs.
User avatar
havoc1482
501 Club
501 Club
Posts: 972
Joined: Fri Sep 20, 2013 11:17 am
Zip Code: 01034
eBay ID: havoc1482
Tractors Owned: _______ 1948 Farmall Super A
Circle of Safety: Y
Twitter ID: @havoc1482
Location: Granville, MA

Cub quit out in the field

Postby havoc1482 » Tue Jul 01, 2014 10:36 pm

So today at work, one of my friends was cultivating with the red cub. He was almost done with a row and the tractor just sputtered and died. My boss got it running smoothly at low/normal idle, but as soon as he throttled up it would sputter and die. We cleaned the carburetor completely, (wasn't really dirty to start with). The tractor sat for about 45 minutes while we went to another field to do a few things. We then came back to it and it started up and got it to the end of the row and to the barn (total of about 50 feet) and it started to sputter again, but when you idle down it runs smooth as butter. We were scratching our heads and it hit me that it could be a fuel starvation problem, at low idle its getting just enough fuel to keep it running, but if you wanna give it more gas it chokes. Further reinforcing my conclusion is that after it sat for the 45 minutes it ran fine for a bit, making me think the fuel bowl in the carb had sufficient time to build up some fuel to burn before running out. Its a huge possibility that a small bit of fertilizer got into the tank and finally found its way down, choking the fuel line. Only letting enough fuel through to keep a smooth low idle.

Thoughts?

Image
Mike
Image

I bleed Black & Gold

IH Collectors Club New England (Chapter 18)

Western Mass. (The 413)

User avatar
Barnyard
Team Cub
Team Cub
501 Club
501 Club
Posts: 19942
Joined: Tue Aug 07, 2007 3:39 pm
Zip Code: 45030
Tractors Owned: At This Time
40 Farmall Cubs (Round Hood)
2 Farmall Cub (Square Hood)
2 IH Cubs (Square Hood)
5 Lo-Boys (Round Hood)
2 Lo-Boys (Square Hood)
2 Farmall 404's
1 Farmall H
1 Ferguson 20
1 Cub Cadet 125
1 Kubota B-7100
Circle of Safety: Y
Location: OH, New Haven (Hamilton County)

Re: Cub quit out in the field

Postby Barnyard » Tue Jul 01, 2014 10:46 pm

Take the metering jet out and turn the fuel on. Then see how the fuel flows from the tank. You may have blockage between the tank and carb. While the meter jet is out run a thing copper wire through it and blow it out it with carb cleaner. That will eliminate two possibilities. If it still sputters we can go from there.
It is common sense to take a method and try it. If it fails, admit it frankly and try another. But above all, try something.
- Franklin D. Roosevelt -

Circle of Safety

Gary Dotson
Team Cub Mentor
Team Cub Mentor
501 Club
501 Club
Posts: 2747
Joined: Thu Aug 03, 2006 6:20 am
Zip Code: 43358
Tractors Owned: 48 Cub Diesel (Cubota)
53 Cockshutt 20 restored (Shooter)
52 Cockshutt 20 unrestored
47 Leader "B" (Herckie)
49 Leader "D" (Princess)
49 Leader "D" very rough
48 Leader "D" unrestored
Kubota B6200E
Kubota B6200HST
Kubota B8200HST-D
Circle of Safety: Y
Location: OH West Mansfield

Re: Cub quit out in the field

Postby Gary Dotson » Wed Jul 02, 2014 6:01 am

And make sure the fuel cap vent is not plugged.

User avatar
John *.?-!.* cub owner
Team Cub Guide
Team Cub Guide
501 Club
501 Club
Posts: 21530
Joined: Sun Feb 02, 2003 2:09 pm
Zip Code: 63664
Tractors Owned: 47, 48, 49 cub plus Wagner loader & other attachments. 41 Farmall H.
Location: Mo, Potosi

Re: Cub quit out in the field

Postby John *.?-!.* cub owner » Wed Jul 02, 2014 8:55 am

Barnyard and Gary both have the first steps, but if you do not find a problem, there is a good possibility of a bad coil or bad condenser. First time I ever saw a coil do that (about 30 years ago), it nearly drove me nuts before I changed the coil in desperation.
If you are not part of the solution,
you are part of the problem!!!

Matt Kirsch
10+ Years
10+ Years
501 Club
501 Club
Posts: 4189
Joined: Tue Jun 08, 2004 3:04 pm
Zip Code: 14559
Circle of Safety: Y
Location: Rochester, NY

Re: Cub quit out in the field

Postby Matt Kirsch » Wed Jul 02, 2014 12:09 pm

Only takes but a few seconds to disconnect the fuel line at the carburetor and check flow there too.

Also take the cap off and shine a light down in the tank, looking for "floaters" or any other crud.

Look at the sediment bowl under the tank too. Might be full of sediment.

BigBill
10+ Years
10+ Years
501 Club
501 Club
Posts: 6043
Joined: Sat Jul 22, 2006 5:02 pm
Zip Code: 00000
Location: in northern usa

Re: Cub quit out in the field

Postby BigBill » Wed Jul 02, 2014 12:54 pm

Blockage on the fuel line above the fuel bowel I'd check that. Or dirt in the high speed jet.
I'm technically misunderstood at times i guess its been this way my whole life so why should it change now.

User avatar
havoc1482
501 Club
501 Club
Posts: 972
Joined: Fri Sep 20, 2013 11:17 am
Zip Code: 01034
eBay ID: havoc1482
Tractors Owned: _______ 1948 Farmall Super A
Circle of Safety: Y
Twitter ID: @havoc1482
Location: Granville, MA

Re: Cub quit out in the field

Postby havoc1482 » Thu Jul 03, 2014 10:37 pm

Got it running, now the clutch is fubar. Looks like the throwout bearing is rubbing the three fingers on the pressure plate even while the clutch pedal isn't depressed. The fingers got worn down to a point where the clutch wouldn't disengage and you can't get the tractor in gear. Gonna have to split, any thoughts as to why they are getting eaten up by the throwout bearing?
Mike
Image

I bleed Black & Gold

IH Collectors Club New England (Chapter 18)

Western Mass. (The 413)

User avatar
Steve Butram
Cub Pro
Cub Pro
501 Club
501 Club
Posts: 1987
Joined: Mon Feb 17, 2003 7:53 am
Zip Code: 47906
eBay ID: steveb05
Tractors Owned: 1947 in well used condition
1948 restored
1948
1949 for sale
Nice original 1950 just out of the Demo Range
628 2 wheel Trailer
1950 Demo
Circle of Safety: Y
Location: IN West Lafayette

Re: Cub quit out in the field

Postby Steve Butram » Fri Jul 04, 2014 6:26 am

Lack of Grease ?
Be prepared to be unprepared Seth Goden


Return to “Farmall Cub”

Who is online

Users browsing this forum: calcub, ericofmaine, UK-Cub and 6 guests