Adjusting Valves

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FarmallCubby1949
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Posts: 64
Joined: Mon Nov 03, 2014 12:35 am
Zip Code: 15059
Tractors Owned: 1949 Farmall Cub (Rosco)
Serial # 68139
1957 Farmall Cub (Flash) Serial # 199918
1959 Farmall 130 (Bufford) Serial # 1507
1940 Farmall B (Uncle Jessie) Serial # 8696
1953 Farmall Super C (Sam)
Serial # 163814 J
1957 International 350 Utility (Tank) Serial # 8668 S
1946 Farmall M (Boss Hog)
1980 Wheel Horse Work Horse
2003 Sears Craftsman Lt
Woods 59 belly mower for Cub
Woods 59 belly mower for Super C
McCormick 1-F11 Two-Way Moldboard Plow for 130 (Fast-Hitch)
McCormick Cub Two-Way Moldboard Plow (Fast-Hitch)
McCormick Cub-38A Tractor Disk Harrow (Fast-Hitch)-(Cub/130)
McCormick Snow/Grader Blade for 130
McCormick Sickle Mower for 130
Location: Midland, (Ohioville) PA

Adjusting Valves

Postby FarmallCubby1949 » Mon Nov 10, 2014 9:40 am

Hi everyone. I'm a new guy here, and I really love the site. My tractor is a beautiful 1949 cub that I purchased in June. It is my first one. So I stumbled upone this wonderful site and I will have some questions from time to time.I have already spoke to a few people on here. My question is about valve adjusting. I notice when you take the valve cover off I see the springs on top towards the head then as I move down from there I see the adjusting nut, then from there I see the tappet. I see in my manual that you have to turn the the nut to adjust. I have a feeler guage that must be put in between the nut and the bottom of the spring. My manual says a snug .013 gap. My question is: Are the tappets supposed to turn freely, or are they supposed to be snug? When the tappets turn the whole vale spring assembly turns. Would that take valves out of adjustment? It shows in my owners manual that you can make these adjustments with the manifold and carb in place. Any knowledge that anyone here with much more experience than I have could share with me would be much appreciated. :help: :thanx:

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Re: Adjusting Valves

Postby DMLinton » Mon Nov 10, 2014 9:54 am

The tappets should turn freely (within reason) else they would contribute to sticky valves. Perhaps someone else will contribute on Cub specifics but some valves are meant to rotate in order to help keep them free in the valve guides and some are not meant to rotate. The valves in my Continental engines, a Y112 and a N62, are not meant to spin and it does not take much for them to get hung up. I have not yet seen a need to check my Cub's valves. Rotating would have no impact on the valve adjustment unless there was a bent valve stem or a bad seat ... which are issues to address before adjusting the valves.

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tmays
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Tractors Owned: 1948 Allis Chalmers G
1947 Cub
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Re: Adjusting Valves

Postby tmays » Mon Nov 10, 2014 10:21 am

Adjust the valves to .015 cold
Thomas

Bob McCarty
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Re: Adjusting Valves

Postby Bob McCarty » Mon Nov 10, 2014 11:32 am

Here's a short "How to" : viewtopic.php?f=141&t=46322
Turning tappets will not change the valve gap. The adjusting can be done with the manifold on, just a little more awkward.

Bob
"We don't need to think more,
we need to think differently."
-Albert Einstein

TomE
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Re: Adjusting Valves

Postby TomE » Sat Nov 15, 2014 9:13 am

Do you here ticking or a clicking noise from the valves?

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John *.?-!.* cub owner
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Re: Adjusting Valves

Postby John *.?-!.* cub owner » Sat Nov 15, 2014 9:47 am

To adjust the valves you need 2 wrenches. one for the flat spots on the tappets to hold them from rotating, 1/2 inch if I remember correctly and a smaller (7/16?) for the adjusting stem, and they turn very hard. The older manuals said .013, but the newer ones say .015, so you have a little leeway.

The tappets spin freely in the engine, and will not change the adjustments if they turn. Be sure to follow the procedure as to adjusting order. If you do not they will come out with wrong settings.
If you are not part of the solution,
you are part of the problem!!!

FarmallCubby1949
Cub Star
Cub Star
Posts: 64
Joined: Mon Nov 03, 2014 12:35 am
Zip Code: 15059
Tractors Owned: 1949 Farmall Cub (Rosco)
Serial # 68139
1957 Farmall Cub (Flash) Serial # 199918
1959 Farmall 130 (Bufford) Serial # 1507
1940 Farmall B (Uncle Jessie) Serial # 8696
1953 Farmall Super C (Sam)
Serial # 163814 J
1957 International 350 Utility (Tank) Serial # 8668 S
1946 Farmall M (Boss Hog)
1980 Wheel Horse Work Horse
2003 Sears Craftsman Lt
Woods 59 belly mower for Cub
Woods 59 belly mower for Super C
McCormick 1-F11 Two-Way Moldboard Plow for 130 (Fast-Hitch)
McCormick Cub Two-Way Moldboard Plow (Fast-Hitch)
McCormick Cub-38A Tractor Disk Harrow (Fast-Hitch)-(Cub/130)
McCormick Snow/Grader Blade for 130
McCormick Sickle Mower for 130
Location: Midland, (Ohioville) PA

Re: Adjusting Valves

Postby FarmallCubby1949 » Sun Nov 16, 2014 10:49 pm

I want to say thanks to everyone who responded to my post. Your information has been extremely helpful. :D I feel good to know that I was on the right track, but I figured it was good to ask people with the experience. My dad and I are working on this together. He told me they had one very much like this one on the farm as a kid growing up. It has been some time since he's been around one, but he said it brings back good childhood memories. :D

FarmallCubby1949
Cub Star
Cub Star
Posts: 64
Joined: Mon Nov 03, 2014 12:35 am
Zip Code: 15059
Tractors Owned: 1949 Farmall Cub (Rosco)
Serial # 68139
1957 Farmall Cub (Flash) Serial # 199918
1959 Farmall 130 (Bufford) Serial # 1507
1940 Farmall B (Uncle Jessie) Serial # 8696
1953 Farmall Super C (Sam)
Serial # 163814 J
1957 International 350 Utility (Tank) Serial # 8668 S
1946 Farmall M (Boss Hog)
1980 Wheel Horse Work Horse
2003 Sears Craftsman Lt
Woods 59 belly mower for Cub
Woods 59 belly mower for Super C
McCormick 1-F11 Two-Way Moldboard Plow for 130 (Fast-Hitch)
McCormick Cub Two-Way Moldboard Plow (Fast-Hitch)
McCormick Cub-38A Tractor Disk Harrow (Fast-Hitch)-(Cub/130)
McCormick Snow/Grader Blade for 130
McCormick Sickle Mower for 130
Location: Midland, (Ohioville) PA

Re: Adjusting Valves

Postby FarmallCubby1949 » Mon Nov 17, 2014 12:14 am

Oh I just wanted to say that there is no ticking sounds from my valves. This is for Tom E.


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