Proper Magneto Oil Seal Depth

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ctltmp
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Proper Magneto Oil Seal Depth

Postby ctltmp » Mon Aug 22, 2016 11:42 am

Well, here we go again. Pulled the governor last night to move it a tooth and sure enough the spring in the seal came along with it. Ordered new seal from H Bob's, it was the original IH part number.

Now the question..........The books says install at 23/32, but I've read a lot here about having to install deeper at 27/32. Anyone know for the original IH part number seal which depth will be correct? Doesn't sound like a sure thing so I will be advised from you guys.

Lesson learned for me. If I had to do over I'd have not done a frame in rebuild. Every time you turn around it's something else. Frame in worked fine for me in the past, but this one has been a fight every step of the way.
WV Mike

Jim Becker
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Re: Proper Magneto Oil Seal Depth

Postby Jim Becker » Tue Aug 23, 2016 12:06 pm

The original seal should be set at the original 23/32 depth. Most new seals are thinner and an extra 1/8 should be OK. The original positon puts the sealing lip close to the notches for the magneto drive lugs. After the seal and governor are in place, it is a good idea to make sure the lip isn't running on the notches. If it is, put the seal enough deeper to get it off the notches.

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ctltmp
Cub Star!
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Posts: 227
Joined: Thu Jul 14, 2016 6:39 am
Zip Code: 26047
Tractors Owned: 1949 F Cub
Location: New Cumberland, WV

Re: Proper Magneto Oil Seal Depth

Postby ctltmp » Tue Aug 23, 2016 4:05 pm

Thanks Jim. I'll compare the new seal to the old and go from there.

Looking like it might be a while before that goes in now. The river got a lot deeper and I'm treading water.........
WV Mike


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