Case 1175 fuel problem

JaJa · May 8, 2022

Need some help have a 1175 Case Agriking.
Tractor looses fuel. I have drained fuel tank and checked fuel it was clean. Has a good fuel flow to hand primer pump. Small filter is clean. Replaced fuel filters and made sure no air is in the filters. Made sure fuel was to the fuel pump. Tractor starts and runs good. It looses fuel and eventually stop running. If I prime with hand pump it will run again. Their is good fuel supply from tank to transfer pump. When I prime with hand pump I hear a clicking sound.
Any ideas.
I reworded heads and replaced old fuel injector.

used red MN · May 8, 2022

Hello JaJa welcome to YT! We had a 1070 on the farm
as I was growing up in the 70s and 80s in fact my
uncle still has it. So memory may be a little fuzzy. My
question is to drain the fuel did you do that by
unhooking the fuel line that feeds the engine fuel or is
there a plug in the tank. What I am trying to establish
by this question is if there is something in the tank
floating around that might block the fuel fitting were it
goes out of the tank, this is many times a piece of
plant stem or bug etc. If you drained it by
disconnecting the fuel line and it did not stop running
out it is probably not you issue. There is the fact that
while you are draining the tank, the tractor is still and
not sloshing the fuel around in the tank. Probably still
worth looking down in the cap with a good flashlight. I
also realize you will not be able to see as much doing
this as I am used to when doing this on an old Farmall.
The clicking you hear is likely the check valves in the
primer that allow the plunger of the primer to pump the
fuel. Just FYI there is also a J. I. Case specific forum
on this site. To get to it depending what ..View.. you are
in you use the ..Jump to.. or ..Hop to.. drop down box
seen below when viewing your post you can navigate
to those topic sections. If you do not get many other
replies here after a day or so you can try posting this
over there.

JaJa · May 8, 2022

(quoted from post at 14:10:37 05/08/22) Hello JaJa welcome to YT! We had a 1070 on the farm
as I was growing up in the 70s and 80s in fact my
uncle still has it. So memory may be a little fuzzy. My
question is to drain the fuel did you do that by
unhooking the fuel line that feeds the engine fuel or is
there a plug in the tank. What I am trying to establish
by this question is if there is something in the tank
floating around that might block the fuel fitting were it
goes out of the tank, this is many times a piece of
plant stem or bug etc. If you drained it by
disconnecting the fuel line and it did not stop running
out it is probably not you issue. There is the fact that
while you are draining the tank, the tractor is still and
not sloshing the fuel around in the tank. Probably still
worth looking down in the cap with a good flashlight. I
also realize you will not be able to see as much doing
this as I am used to when doing this on an old Farmall.
The clicking you hear is likely the check valves in the
primer that allow the plunger of the primer to pump the
fuel. Just FYI there is also a J. I. Case specific forum
on this site. To get to it depending what ..View.. you are
in you use the ..Jump to.. or ..Hop to.. drop down box
seen below when viewing your post you can navigate
to those topic sections. If you do not get many other
replies here after a day or so you can try posting this
over there.

Thanks for the info. I siphoned 30 Gallo out of tank. And then drained 5 gallons through fuel line. There has been no trash and almost no sludge.

cjunrau · May 8, 2022

Not sure but someone told me that a plunged return
line can do something like that.

casecollectorsc · May 8, 2022

If it sat for awhile the plunger in the transfer pump could be stuck. 2 10 mm nuts hold the transfer pump to the side of the injector pump.
Take the lines off and the transfer pump and see if the plunger moves freely...it has a roller on the end that contacts the cam shaft in the
pump.

JaJa · May 8, 2022

Return line is open. Check it yesterday.

JaJa · May 8, 2022

The roller moves in and out freely.

JaJa · May 8, 2022

(reply to post at 16:34:22 05/08/22)

Is the roller spring loaded? It moves in and out when you turn it on its side. There is no tension to keep it pushed out. Not sure how it should work.

jon f mn · May 8, 2022

I rented a 2670 one year and had the worst
time with fuel starvation. Did all the
regular stuff and still had problems.
Finally decided it was the charge pump.
When I took it off and turned it over
there was a bee stuck in the inlet. Pulled
that out and everything worked great.

showcrop · May 9, 2022

Sounds like it is sucking air at a connection.

casecollectorsc · May 9, 2022

A big spring behind the large cap nut keeps the roller in contact with the cam...apparently your spring is broken.

JaJa · May 9, 2022

(quoted from post at 11:40:47 05/09/22) A big spring behind the large cap nut keeps the roller in contact with the cam...apparently your spring is broken.

I want to thank everyone for the help.
I found the problem. I took the cap nut and the spring was not broken but the plunger was stuck. I freed the plunger so the roller had tension on it. It now makes contact with cam.

casecollectorsc · May 9, 2022

Good deal, had that happen a couple times on tractors we bought.

JaJa · May 9, 2022

(quoted from post at 18:28:27 05/09/22) Good deal, had that happen a couple times on tractors we bought.

Glad its up and running. My Ag students are glad to have the job. Finished. They have worked hard for the past few months get it fixed.

Case 1175 fuel problem

JaJa

New User

used red MN

Well-known Member

JaJa

New User

cjunrau

Well-known Member

casecollectorsc

Well-known Member

JaJa

New User

JaJa

New User

JaJa

New User

jon f mn

Well-known Member

showcrop

Well-known Member

casecollectorsc

Well-known Member

JaJa

New User

casecollectorsc

Well-known Member

JaJa

New User

Similar threads