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Magneto?

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Chet
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Joined: Sat Feb 23, 2013 8:31 am
Zip Code: 36441
Tractors Owned: Farmall Cub, "Susie-Q" 61617 1948 /Woods 42 Mower, Sickle Mower. 2 gang disc, cultivators
Farmall Cub, "Sadie", 1949 Block Casting 2-3-S Duplex planter,Fert Distr
FarmallCub "Charlene" 22312 1948 Disc Plow, Flail Mower, Grader Blade
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Magneto?

Postby Chet » Sat Mar 02, 2013 8:32 pm

May I/ if you please! I am having a problem with my magneto on my 1948 Cub. Is it proper for me to discuss it here? Assuming, yes.... here goes. My magneto will fire from the magneto through the magneto wire to the distributor cap center tower and further to the center contact inside the cap. But it will not fire across the rotor points and out the towers, such as to the spark plug wires. What is wrong? I have replaced the distributor cap, distributor rotor, and wires. Would the condenser in the distributor section of the magneto be weak cause this problem? Thanks for an urgent reply.

I have really enjoyed reading each of the post on this subject.

Chet sends

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panda
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Posts: 97
Joined: Thu Dec 15, 2011 4:19 pm
Zip Code: 49910
Circle of Safety: Y

Re: Magneto?

Postby panda » Sun Mar 03, 2013 6:25 am

Could the rotor be out of time? :?:

Gary Dotson
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Tractors Owned: 48 Cub Diesel (Cubota)
53 Cockshutt 20 restored (Shooter)
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49 Leader "D" (Princess)
49 Leader "D" very rough
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Kubota B6200E
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Location: OH West Mansfield

Re: Magneto?

Postby Gary Dotson » Sun Mar 03, 2013 7:33 am

Did you align the timing marks on the rotor? If the mag generates a good spark from the coil tower, it is internally functioning as it should. From there, it just needs the cap & rotor to tell it where to go. You could have a cracked (shorted) cap but you've already replaced that, so I'm betting the rotor's out of time.

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Winfield Dave
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N3NIK
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Location: PA, Middleport (Schuylkill County)

Re: Magneto?

Postby Winfield Dave » Sun Mar 03, 2013 8:33 am

Gary Dotson wrote:Did you align the timing marks on the rotor?
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Dave
"More gold has been mined from the thoughts of men than has been taken from the earth." -- Napoleon Hill

JRICK
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Tractors Owned: 1940 Allis Chalmers WC
1949 Farmall Cub "Haydee Bug"
1960 Massey Ferguson Diesel Deluxe
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1980 Power King Model 1616
1991 400A Belarus
1952 Massey Harris Pony
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Re: Magneto?

Postby JRICK » Sun Mar 03, 2013 7:00 pm

I ran across the same problem a while back,about drove me crazy. It was the rotor out of time.

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dirtyred
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Location: statenville ga

Re: Magneto?

Postby dirtyred » Mon Mar 04, 2013 5:24 pm

well i dont know if this will work in a mag but my distributor was not getting a good ground at the points. some cleaning behind the adjustable side of the points and it was firing. (see i DID learn something at DSCF) :lol: but it probably is the rotor outta time been there done that
He that tilleth his land shall be satisfied with bread: Proverbs 12:11


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