Tested magnetos today

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RonT
Posts: 37
Joined: Sat Apr 20, 2013 6:04 am
Zip Code: 43453
Tractors Owned: 1950 Cub - Whitington
1989 Kubota L2050
1951 8N
1948 Willy's CJ-2A
1924 Model T Fordor
Location: OH, Port Clinton

Tested magnetos today

Postby RonT » Sun May 19, 2013 2:36 pm

Spent a relaxing day inventorying the pieces/parts that came with my basket-case 1950 Cub.
I got around to the two J4 magnetoes that came with the parts. In a former career, I used to rebuild small aircraft magnetoes at the auto-electric shop I worked at so I felt pretty confident that I wouldn't hurt anything.
I plugged one of the plug wires into the coil cap and put a new spark plug on the other end. Holding the plug base grounded to the housing, I cycled each through the impulse. There was a good blue spark on one mag but the other was dead.
I took off the cap, rotor and cover and found green points and a broken insulator where the wires come together on the stud.
I had some insulating washers laying around that fit the bill nicely. I polished the points to a high shine with crocus cloth and after cleaning the housing, put it all back together setting the gap and putting a small smear of distributor can lube on the lobes.
Luck shined on me - I now have two hot mags.
Thanks for the volumes of technical help in the archives of this forum. I haven't had a question yet that wasn't already answered here.

Ron

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pickerandsinger
501 Club
501 Club
Posts: 1182
Joined: Thu Oct 18, 2012 3:23 pm
Zip Code: 13143
Tractors Owned: 1957 Cub Low Boy w/ Danco c3 (Cubby)
1953 Cub w/ sprayer and 54A blade (Chompers)
1954 Cub w/fast hitch (Ira)
1948 Cub ( Papa Paul)
Mutt mix Cub (BattleAxe)
1950 Farmall Cub (basket case demo)
1950 Ferguson TO20 w/ loader (John Henry)
1951 Ferguson TEA 20 (parts)( Uncle Rusty)
F/H Disc Harrow for cub L-38
C-22 Sickle Bar Mower
IH C2 and C3 mower
Universal tool attachment with disc hillers..Rear cultivators (various tips)
Henderson Loader
York Rake for Cub home made
Single bottom Plow for Cub F194
Gravely 5660 12 hp/ w snoblower.rototiller,bush hog
Circle of Safety: Y

Re: Tested magnetos today

Postby pickerandsinger » Sun May 19, 2013 8:09 pm

Cool.....
In Memory of 58,286

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Rudi
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501 Club
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Posts: 28707
Joined: Sun Feb 02, 2003 8:37 pm
Zip Code: E1A7J3
eBay ID: ve9rhs
Skype Name: R.H. "Rudi" Saueracker, SSM
Tractors Owned: 1947 Cub "Granny"
1948 Cub "Ellie-Mae"
1968 Cub Lo-Boy
Dad's Putt-Putt
IH 129 CC
McCormick 100 Manure Spreader
McCormick 100-H Manure Spreader
Post Hole Digger
M-H #1 Potato Digger
Circle of Safety: Y
Twitter ID: Rudi Saueracker, SSM
Location: NB Dieppe, Canada

Re: Tested magnetos today

Postby Rudi » Sun May 19, 2013 8:23 pm

Ron:

Glad you has some quality relaxation time with the mags. It is always enjoyable when stuff works out :D
Confusion breeds Discussion which breeds Knowledge which breeds Confidence which breeds Friendship



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