fixing a farmall cub

Farmall Super A, AV, 1939 - 1954

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fixing a farmall cub

Postby bayou » Sun Aug 26, 2007 11:48 am

hello first off my name is matthew im 16 and live in california my dad hase a none runing (ran when parked) 1942 farmall cub (i think) that he is letting me work on its been sitting for 6 years so i changed the oil and cranked it over with the hand crank its not geting any spark so i looked and found missing wires i took some pics and was wondering if any one knew where they whent and what i need to re atach thanks in advance heres a pis of whats missing


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Postby Mike in Louisiana » Sun Aug 26, 2007 12:13 pm

Hi Matthew and welcome to the cub site. First I want to warn you that when you use that hand crank, if the engine kicks back it can break your wrist/fingers ect. You can go to the Manual server and look at the electrical diagrams. Your cub has to be a 1947 and up. Look for the serial # on the right side where the steering shaft goes into the steering box. Let us know what your ser # is and someone that knows electrical better than I do will give you all the info you need. Also if the tractor set that long check the air breather for mice nest.
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Postby red56turbo » Sun Aug 26, 2007 12:31 pm

The generator appears to be on the wrong side. Are you sure this is a cub?? Kind of hard to tell from the pic.
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Postby Donny M » Sun Aug 26, 2007 12:34 pm

From looking at the block and head, I would guess it's an A.
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Postby Jim Becker » Sun Aug 26, 2007 12:57 pm

I agree it is probably an A. If so, it could very well be a 1942 model. It appears to have the original type 3-brush generator but the cut-out has been home-brew replaced with a voltage regulator. One of the missing wires is the field wire from the generator so you can safely ignore all the charging system problems until the engine runs.

If it still has the original ignition system, it is a magneto and does not connect to any of the electrical system. First step is to work on the magneto to get some spark. Post a picture of the other side of the engine, and we can verify whether it has the original ignition system or if it has been modified. A few modifications could invalidate any suggestions we make about getting it going.

The wiring diagram for an A looks about like one for an early Cub:
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Postby Kodiak » Sun Aug 26, 2007 1:13 pm

Welcome Matthew :D Even if it's not a Cub and is an "A" we can still help you out. See if you could get a more complete picture of the tractor and some of the more seasoned vets will tell you more :!: Donny has an "A" and I'm sure he is willing to try and help out as are a lots of other folks. Again welcome to the forum :D

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Postby Pete1941 » Sun Aug 26, 2007 6:28 pm

Welcome Matthew, not to fret, not to worry, these guys will have you up and running in nothing flat. Pete
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Hi Matt

Postby Joe Malinowski » Sun Aug 26, 2007 7:00 pm

Sounds like a nice project. It is great to see the younger generation getting involved its a lot of fun and you learn some good stuff
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Postby bayou » Sun Aug 26, 2007 7:53 pm

thanks for the welcome. here is a pic of it but i couldnt find the sereal number
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Postby VinceD » Sun Aug 26, 2007 8:07 pm

Hi Matthew and welcome. You will find a lot of really great folks here that have an unbelievable wealth of knowledge. They can help you with any problem. Enjoy, learn, and contribute when you can. :D :D
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Postby Max_Wedge » Sun Aug 26, 2007 8:16 pm

You appear to have an early A.
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Postby Jim Becker » Sun Aug 26, 2007 8:19 pm

Yes, it is a Farmall A. It has at least part of a Pneumatic Lift-All (the funny thing on the exhaust manufold is part of it). The big bracket on the left side of the bell housing is part of the lift for a plow. The control lever for the Lift-all appears to be the early style. Your hood uses the early style fasteners, last used on serial 41329 (very late '40). So if parts haven't been swapped around, it is no later than '40.

The serial number plate is probably on the right side of the left seat support bracket. If it is a very early tractor, it will be on the shield below the front edge of the driver's platform. If the serial number plate is missing and it has the original engine (big if), the engine number will match the serial number. It is stamped into a machined boss at the top edge of the engine block, roughly below the number 1 spark plug.
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Postby bayou » Sun Aug 26, 2007 8:21 pm

here is the distributor

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Postby Jim Becker » Sun Aug 26, 2007 8:35 pm

From the sun and the shadow, it isn't easy to see much in that picture. I think it is a magento. You have the early style tall oil filter.
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Postby bayou » Sun Aug 26, 2007 8:40 pm

ok ill take another when the light is differnt
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