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Oil cup j4 magneto

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Scooter1
Posts: 21
Joined: Sun Mar 29, 2020 8:12 pm
Zip Code: 45176
Tractors Owned: 1948 cub

Oil cup j4 magneto

Postby Scooter1 » Mon Oct 19, 2020 7:25 am

Need to replace the oil cup on the magneto.
Cap has broken off the oil cup.

Which oil cup should in order.
1/4” or 5/16”?
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Gary Dotson
Team Cub Mentor
Team Cub Mentor
Posts: 5720
Joined: Thu Aug 03, 2006 6:20 am
Zip Code: 43358
Tractors Owned: 48 Cub Diesel (Cubota)
53 Cockshutt 20 restored (Shooter)
52 Cockshutt 20 unrestored
47 Leader "B" (Herckie)
49 Leader "D" (Princess)
49 Leader "D" very rough
48 Leader "D" unrestored
Kubota B6200E
Kubota B6200HST
Kubota B8200HST-D
Circle of Safety: Y
Location: OH West Mansfield

Re: Oil cup j4 magneto

Postby Gary Dotson » Mon Oct 19, 2020 8:11 am

I'm pretty sure you need the 1/4" Scott.
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Scooter1
Posts: 21
Joined: Sun Mar 29, 2020 8:12 pm
Zip Code: 45176
Tractors Owned: 1948 cub

Re: Oil cup j4 magneto

Postby Scooter1 » Tue Nov 03, 2020 8:09 pm

Any tricks or tips for removing old and installing new oil cup?
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Rick Spivey
Cub Pro
Cub Pro
Posts: 2779
Joined: Sun Jul 01, 2007 10:07 pm
Zip Code: 29518
Circle of Safety: Y
Location: SC, Cades 29518

Re: Oil cup j4 magneto

Postby Rick Spivey » Wed Nov 04, 2020 7:37 am

Removal is fairly easy, I have used a pair of cutting pliers to "grab" the cup and pull/twist it out. They are just pressed in. For install, find a drift, back end of a drill bit, wooden dowel, etc. the exact size of the inside of the cup. There's a small ledge that you want to push against. Then just push/tap it in.
Rick Spivey
'52 Cub ("Great Personality") 148xxx
'48 Cub with FH ("Gunny Cub") 38xxx
'57 Lambretta (a slow work in progress)
'74 Triumph TR6 (Mama's toy)
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Clemsonfor
501 Club
501 Club
Posts: 1127
Joined: Sun Nov 10, 2019 5:14 pm
Zip Code: 29848
Tractors Owned: Yanmar YM2000
Yanmar YM186 (non running)
1952 Farmall Cub
Circle of Safety: Y
Location: Greenwood County SC

Re: Oil cup j4 magneto

Postby Clemsonfor » Wed Nov 04, 2020 9:17 am

Could you put a little rubber cap on it. Like one for an automotive vacuum line. Quick easy and be done with it. Yep I know it's not the correct way and correct part but some people that doesn't bother. Just throwing another idea out there.
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Barebones
10+ Years
10+ Years
Posts: 94
Joined: Sun Jun 21, 2009 8:28 pm
Zip Code: 48867
Tractors Owned: 1948 Cub, 1948 Ford 8N,
1954 Ford NAA, 1956 Allis Chalmers IB
Location: Owosso, Michigan

Re: Oil cup j4 magneto

Postby Barebones » Sat Nov 07, 2020 5:10 pm

I have a .25 auto case on mine. Snug fit with a cool factor.
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