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help with timing 1949 Super A

Farmall Super A, AV, 100, 130, & 140 1939 - 1973
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BullDAWG
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Tractors Owned: 1950 Super A
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help with timing 1949 Super A

Postby BullDAWG » Tue Jul 07, 2015 9:23 pm

I have read the repair manual I got at tractor supply but it is not written like most repair manuals and I'm unclear on how to do it. Is the timing mark for the #1 piston under the oval cover on the bottom of the torque tube/ clutch housing ? And is the #1 piston the front or rear piston? Do I really need to first set it to top dead center only to retard the timing 30 degrees like the manual said n then turn the distributor till it sparks or can I do it like an old chevy n just go from top dead n stat cranking n then just move the timing a few degrees retarded (like 5 deg.) n then to 5 degrees advanced till she starts n just fine toon it till it runs the best?
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Super A
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Re: help with timing 1949 Super A

Postby Super A » Tue Jul 07, 2015 9:32 pm

BullDAWG wrote:I have read the repair manual I got at tractor supply but it is not written like most repair manuals and I'm unclear on how to do it. Is the timing mark for the #1 piston under the oval cover on the bottom of the torque tube/ clutch housing ? And is the #1 piston the front or rear piston? Do I really need to first set it to top dead center only to retard the timing 30 degrees like the manual said n then turn the distributor till it sparks or can I do it like an old chevy n just go from top dead n stat cranking n then just move the timing a few degrees retarded (like 5 deg.) n then to 5 degrees advanced till she starts n just fine toon it till it runs the best?

I'm not the world's best mechanic but I'd follow the book. #1 piston is the one closest to the radiator, and the timing mark is on the flywheel, which is visible from underneath the cover. I'd probably just use my finger over the #1 spark plug hole to find TDC, just to to keep from having to get under the tractor....I prefer to work on my feet or sitting down whenever possible! :roll:

Al
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havoc1482
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Re: help with timing 1949 Super A

Postby havoc1482 » Tue Jul 07, 2015 9:35 pm

Cylinders are numbered from the radiator back. #1 is the closest one to the front. Take the spark plug out, rotate the engine until you feel air pressure around your finger. Take a flash light and look into the hole and slowly rotate the engine until you see the piston reach TDC.

Is this a magneto tractor?

If it is, you can follow this video. I did it with my Super A

https://www.youtube.com/watch?v=QqucExhxXdE

Super A wrote:I'm not the world's best mechanic but I'd follow the book. #1 piston is the one closest to the radiator, and the timing mark is on the flywheel, which is visible from underneath the cover. I'd probably just use my finger over the #1 spark plug hole to find TDC, just to to keep from having to get under the tractor....I prefer to work on my feet or sitting down whenever possible! :roll:

Al


The timing mark on pre 1950 A and Super As are nearly impossible to find because they were a cast mark.
Mike
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Matt Kirsch
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Re: help with timing 1949 Super A

Postby Matt Kirsch » Wed Jul 08, 2015 7:43 am

We looked and looked for the timing mark on the flywheel of our Super C, but could not find it.

If you shine a light down the spark plug hole you can see the piston come up to TDC. Put your thumb over the hole and slowly crank until compression pushes air out. Then shine the light in and watch for the piston to reach the top of the bore and change direction. That's TDC.

You can then go look at the flywheel and see if you can see anything, but quite frankly, we still could not find anything definitive on ours.

ccaissie
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Re: help with timing 1949 Super A

Postby ccaissie » Wed Jul 15, 2015 11:08 am

Timing mark is hard to see, but it's there. When you do find it, use a crayon, soapstone or paint pen to mark it.

C
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Matt Kirsch
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Re: help with timing 1949 Super A

Postby Matt Kirsch » Fri Jul 17, 2015 7:08 am

Even after we got the engine up on TDC, we could not see any sort of marking on the flywheel whatsoever. The manuals all show a clearly scribed line with stamped-in lettering, but there was literally nothing on the flywheel. Smooth as a baby's butt.

BullDAWG
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Zip Code: 39401
Tractors Owned: 1950 Super A
1955 John Deere 60 (sold)
1950 Cub (sold) 1950 Cub l59 woods belly mower (sold)
1951 Cub (sold) 1950 Cub w/ 5' sicklebar (sold)
Tufline 6' disc (old heavy pull type)
1953+ A-295A 2 furrow SlatWing Plow Chief plow (SA)
1950 cub-193 1 furrow SWPC plow (cub) (sold)
6' home made bush hog. Mounts on drawbar
Circle of Safety: Y

Re: help with timing 1949 Super A

Postby BullDAWG » Sat Jul 18, 2015 9:00 pm

I got her running today, but now I want to know how do you set the timing ? I mean you can't set it with a timing light nor do they say to set it at 10 deg. BTDC at 1500 RPM's or anything like that, so do I just play with it to get it running the best and starting easily ? How do ya'll do it ? it seems to run well where I got it n it starts good to but how do I fine tune her?
ImageCircle of Safety
"The nine most terrifying words in the English language are: I'm from the GOVERNMENT and I'm here to HELP."
"I DON'T believe in a government that protects US from OURSELVES." R. Reagan

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havoc1482
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Location: Westfield, MA
Contact:

Re: help with timing 1949 Super A

Postby havoc1482 » Sun Jul 19, 2015 8:12 am

I got my Super A running smooth as butter by just timing it like they did in the video. If you have a good eye for seeing TDC in the spark-plug hole and steady enough with your hands you can get the impulse coupling in the mag to snap precisely at TDC.
Mike
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I bleed Black & Gold

IH Collectors Club New England (Chapter 18)

Western Mass. (The 413)


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