Need Super A "Expert"!

Farmall Super A, AV, 100, 130, & 140 1939 - 1973

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AL Farmall Boy
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Re: Need Super A "Expert"!

Postby AL Farmall Boy » Tue Apr 24, 2018 10:48 am

Dale Finch wrote:No, haven't had the chance...but I did sell my spare rebuilt Touch Control Block today!! :D

So now I have some money to pay someone IF I could find someone. But, I am feeling the challenge from you guys, so plan to concentrate on it at least one more time. (I now have a new set of points and condenser.) The sad thing is that this sort of challenge is so much more fun when you have other folks around to work with. It's boring and frustrating by myself!

Oh poor me!!! :roll:
OK, no more whining tonight!


Sounds like a weak electrical system/spark to me since you've gone through carburetor. Make sure you have no air leaks anywhere either (gaskets)
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Chase
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Hairy Moose Knuckles
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Re: Need Super A "Expert"!

Postby Hairy Moose Knuckles » Tue Apr 24, 2018 2:30 pm

Chase,

PM sent

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Dale Finch
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Re: Need Super A "Expert"!

Postby Dale Finch » Tue Apr 24, 2018 3:30 pm

Yeah...that's probably true.

Question, with the timing mark underneath on the flywheel, how do you guys check the timing? Do you just do a static timing, then adjust/fine-tune it by ear by rotating the distributor? Is there any way to check it with a strobe? Guess I need to get my head back in the 2 service manuals I have!! Would much rather watch and learn from someone else!! :lol:

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ricky racer
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Re: Need Super A "Expert"!

Postby ricky racer » Tue Apr 24, 2018 6:52 pm

YouTube??
1929 Farmall Regular
1935 John Deere B
1937 John Deere A
1941 John Deere H
1952 John Deere B
1953 Farmall Cub

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Dale Finch
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Tractors Owned: '55 Cub "Bertha"
'55 Cub "Ben"
'56 Cub "Boris"
'48 Super A "Bubba"
Circle of Safety: Y
Location: NC, Chapel Hill

Re: Need Super A "Expert"!

Postby Dale Finch » Tue Apr 24, 2018 7:07 pm

Ooo! That's an idea...I'm always amazed at what you can find on YouTube! I'll check it out.

AL Farmall Boy
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Re: Need Super A "Expert"!

Postby AL Farmall Boy » Wed Apr 25, 2018 8:28 am

Dale Finch wrote:Yeah...that's probably true.

Question, with the timing mark underneath on the flywheel, how do you guys check the timing? Do you just do a static timing, then adjust/fine-tune it by ear by rotating the distributor? Is there any way to check it with a strobe? Guess I need to get my head back in the 2 service manuals I have!! Would much rather watch and learn from someone else!! :lol:


Yes Dale, it is easiest to set it in the middle and once it is running, just rotate and fine tune by ear. Whenever the tractor is apart, paint that timing mark real good.
Regards,
Chase
205-368-5339
ihfarmallrtr@gmail.com
:tractor: Like my page "Alabama Tractor Pickers" on Facebook! :tractor:

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Dale Finch
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Tractors Owned: '55 Cub "Bertha"
'55 Cub "Ben"
'56 Cub "Boris"
'48 Super A "Bubba"
Circle of Safety: Y
Location: NC, Chapel Hill

Re: Need Super A "Expert"!

Postby Dale Finch » Wed Apr 25, 2018 3:55 pm

I did paint that mark when I first reassembled the tractor :D , but I was by myself and SURE did get tired of getting up and down!! I just never could figure out how you could lie down there with a timing light! :lol:

It will probably be a week or two before I get back to this...my sister from Newaygo, MI, is driving down for a visit.

oldfarmkid
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Re: Need Super A "Expert"!

Postby oldfarmkid » Tue May 01, 2018 7:03 pm

If you have or can borrow a timing light, connect it to each spark plug wire while it's stuttering. If you show a solid flash, flash, flash, of the timing light on each plug wire, you have a fuel or manifold leak problem. If however some plug wires indicate a stuttering flash that matches the sound, you could have faulty spark plug, plug wire or contact in distributor for that plug. If you show the stuttering or missing flashes on all plug wires, then points, and condenser are common point of failure for all cylinders. Don't forget proper points gap also.

Good Luck

Tim

AL Farmall Boy
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Re: Need Super A "Expert"!

Postby AL Farmall Boy » Tue May 01, 2018 8:30 pm

oldfarmkid wrote:If you have or can borrow a timing light, connect it to each spark plug wire while it's stuttering. If you show a solid flash, flash, flash, of the timing light on each plug wire, you have a fuel or manifold leak problem. If however some plug wires indicate a stuttering flash that matches the sound, you could have faulty spark plug, plug wire or contact in distributor for that plug. If you show the stuttering or missing flashes on all plug wires, then points, and condenser are common point of failure for all cylinders. Don't forget proper points gap also.

Good Luck

Tim


Very good info. Thanks for sharing.
Regards,
Chase
205-368-5339
ihfarmallrtr@gmail.com
:tractor: Like my page "Alabama Tractor Pickers" on Facebook! :tractor:

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Dale Finch
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Joined: Tue Apr 27, 2010 11:34 am
Zip Code: 27517
Tractors Owned: '55 Cub "Bertha"
'55 Cub "Ben"
'56 Cub "Boris"
'48 Super A "Bubba"
Circle of Safety: Y
Location: NC, Chapel Hill

Re: Need Super A "Expert"!

Postby Dale Finch » Tue May 01, 2018 9:43 pm

Yes! Great diagnostics path.

Last weekend I couldn't even get it started, so I'll leave the carb (for now), and once my visiting sister heads home, I will grit my teeth and dive back in with these suggestions you all have made. Thx!

48Cub48SuperA
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Re: Need Super A "Expert"!

Postby 48Cub48SuperA » Wed Jun 13, 2018 6:49 pm

I had the same issue with my 48 Super A. I bought and installed a new zenith carb, wires, plugs, cap, rotor and It still would cough and sputter when I advanced the throttle and when under load. I thought maybe I was flooding it. I followed the service manual and adjusted the idle screws and now it runs without any hiccups. I still have to advance the throttle at a reasonable speed but hey it's not the gas pedal in my truck.


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